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Legend - object IDs plus links to more info

Data compiled at 1820 UTC on 13 Oct. 2019 for 76 known objects during a period of seven days from 10 to 16 Oct. 2019. Orange is for objects with a new JPL orbit solution (usually from new observation).

Chart
ID

Full ID
Period
Closest
Passage
Uncertainty

Status
HM2019 HM20.3 LD  distant
KP272017 KP2714.64 LD  departed
QU32019 QU371.76 LD  departed
RP22019 RP211.25 LD  departed
RT32019 RT353.23 LD  departed
RW12019 RW146.84 LD  departed
SA92019 SA943.3 LD+/- 1.7333 hours  departed
SB62019 SB68.19 LD+/- 3 minutes  departed
SB92019 SB928.6 LD+/- 8 minutes  departed
SC62019 SC648.24 LD+/- 2 minutes  departed
SD2019 SD56.01 LD  departed
SD82019 SD819.36 LD  departed
SD220163899 2003 SD220399.0 LD  distant
SE82019 SE843.35 LD  departed
SF12019 SF145.54 LD+/- 5 minutes  departed
SF42019 SF447.26 LD+/- 3 minutes  departed
SG92019 SG954.94 LD  departed
SH32019 SH331.84 LD  departed
SH92019 SH922.8 LD+/- 43 minutes  departed
SJ2019 SJ45.12 LD  departed intruder
SJ92019 SJ917.69 LD  departed
SK92019 SK956.31 LD+/- 3 minutes  departed
SL32019 SL329.03 LD  departed
SL72019 SL72.08 LD  departed
SL82019 SL821.94 LD  departed
SL162017 SL1629.62 LD  departed
SM82019 SM826.79 LD  departed intruder
SN32019 SN316.44 LD  departed
SN72019 SN767.8 LD+/- 1.9833 hours  departed
SO62019 SO6128.2 LD+/- 9 minutes  departed
SO82019 SO829.02 LD  departed
SP32019 SP312.97 LD  departed intruder
SQ12019 SQ143.09 LD+/- 2 minutes  departed
ST82019 ST848.60 LD  departed
SU32019 SU39.56 LD  departed
SU62019 SU645.02 LD+/- one minute  departed
SU102019 SU1039.25 LD  departed
SV92019 SV98.56 LDoutbound
SW52019 SW545.34 LD  departed
SX32019 SX317.40 LD  departed
SX82019 SX821.92 LD  departed intruder
SY62019 SY658.7 LD  distant
TA2019 TA14.99 LD  departed
TA72019 TA73.91 LD+/- 4 minutesinbound
TB2019 TB18.27 LD  departed
TB72019 TB76.0 LD+/- 20 minutespassing
TC12019 TC15.7 LD+/- 50 minutes  departed
TC22019 TC223.95 LD+/- 2 minutes  departed
TD2019 TD22.68 LD+/- one minute  departed intruder
TE2019 TE49.6 LD+/- 1.5167 hours  departed intruder
TE22019 TE28.57 LDapproaching
TF12019 TF130.73 LD+/- 3 minutes  departed
TF32019 TF35.44 LDoutbound
TH22019 TH29.26 LDpassing
TJ52019 TJ56.03 LD  departed
TK2019 TK19.97 LD  departed
TK52019 TK53.9 LD+/- 8 minutesinbound
TL32019 TL312.3 LD> 10 days  departed
TM2019 TM10.35 LD  departed
TM32019 TM33.87 LD  departed
TN52019 TN511.41 LD  departed intruder
TO62019 TO67.73 LD  departed
TP32019 TP317.5 LD+/- 33 minutes  departed
TP52019 TP510.0 LD+/- 13 minutesapproaching
TQ2019 TQ36.1 LD> 10 days  departed
TS2019 TS8.75 LD  departed
TT12019 TT12.90 LDpassing
TT22019 TT216.87 LD+/- one minute  departed
TU2019 TU5.80 LD  departed
TU22019 TU237.6 LD+/- 8.6167 hours  departed
TV2019 TV10.45 LD  departed
TW2019 TW7.55 LDoutbound
TW12019 TW14.7 LD+/- 9 minutes  departed
TX2019 TX8.18 LD  departed
TZ2019 TZ8.16 LD  departed
TZ62019 TZ61.43 LDoutbound
DateTfc.Time
10 Oct. '19Rept. Line
11 Oct. '19Rept. Line
12 Oct. '19Rept. Line
13 Oct. '19Rept. Line
14 Oct. '19Rept. Line
15 Oct. '19 Line
16 Oct. '19 Line

Object Details - Skychart objects presented in reverse designation order, newest first
  ("designation assigned to" indicates unofficial discovery credit)

2019 TB7   -   passing
Approximate diameter17 meters (H=26.502)
Closest Earth approach5.96 LD at 0121 UTC on 13 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 20 minutes
Inside ten LD of Earth6 to 19 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 12 Oct. 2019 UTC
based on 19 observations spanning one day
Optical observation  
  • reported from 6 observing codes during 17.182 hours: 204, G96, H01, I52, K87, L01
  • designation assigned to Mt. Lemmon Survey observation at 0959 UTC 10 Oct. 2019
  • last observed at 0310 UTC on 11 Oct. 2019 by Dettelbach Vineyard Obs.
NotesNHATS target
Links  
2019 TA7   -   inbound
Approximate diameter19 meters (H=26.223)
Closest Earth approach3.91 LD at 2251 UTC on 14 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 4 minutes
Inside ten LD of Earth11 to 18 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 11 Oct. 2019 UTC
based on 15 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 1.6926 days: G96, I52, K87, L01
  • designation assigned to Mt. Lemmon Survey observation at 0951 UTC 9 Oct. 2019
  • last observed at 0228 UTC on 11 Oct. 2019 by Dettelbach Vineyard Obs.
Links  
2019 TZ6   -   outbound
Approximate diameter10 meters (H=27.624)
Closest Earth approach1.43 LD at 1912 UTC on 11 Oct. 2019
Inside Earth SOI11 to 12 Oct. 2019
Inside ten LD of Earth8 to 15 Oct. 2019
Closest Moon approach1.81 LD at 1312 UTC on 11 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 11 Oct. 2019 UTC
based on 24 observations
Optical observation  
  • reported from 6 observing codes during 16.493 hours: 204, 595, G96, H01, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0712 UTC 10 Oct. 2019
  • last observed at 2342 UTC on 10 Oct. 2019 by Schiaparelli Obs.
Links  
2019 TO6   -     departed
Approximate diameter6 meters (H=28.821)
Closest Earth approach4.07 LD at 2252 UTC on 4 Oct. 2019
Inside ten LD of Earth27 Sept. until 11 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 10 Oct. 2019 UTC
based on 14 observations spanning 2 days
Optical observation  
  • reported from 3 observing codes during 2.0880 days: G96, H01, I52
  • designation assigned to Mt. Lemmon Survey observation at 0756 UTC 8 Oct. 2019
  • last observed at 1003 UTC on 10 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 TP5   -   approaching
Approximate diameter27 meters (H=25.456)
Closest Earth approach8.21 LD at 0736 UTC on 18 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 13 minutes
Inside ten LD of Earth16 to 19 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 10 Oct. 2019 UTC
based on 12 observations spanning 3 days
Optical observation  
  • reported from 4 observing codes during 2.6208 days: 568, 691, 695, F51
  • designation assigned to Pan-STARRS 1 observation at 1125 UTC 7 Oct. 2019
  • last observed at 0219 UTC on 10 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Links  
2019 TN5   -     departed intruder
Approximate diameter7 meters (H=28.414)
Closest Earth approach0.32 LD at 2237 UTC on 5 Oct. 2019
Inside Earth-Moon system1434 on 5 Oct. until 0640 UTC on 6 Oct. 2019
Inside Earth SOI5 to 6 Oct. 2019
Inside ten LD of Earth2 to 9 Oct. 2019
Closest Moon approach0.61 LD at 1829 UTC on 5 Oct. 2019
Inside one LD of Moon1117 on 5 Oct. until 0133 UTC on 6 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 10 Oct. 2019 UTC
based on 14 observations spanning 3 days
Optical observation  
  • reported from 2 observing codes during 3.2267 days: F52, T05
  • first observed at 0840 UTC on 6 Oct. 2019 by ATLAS Haleakala
  • designation assigned to ATLAS Haleakala observation at 0905 UTC 6 Oct. 2019
  • last observed at 1406 UTC on 9 Oct. 2019 by Pan-STARRS 2
Notesrisk
Links  
2019 TK5   -   inbound
Approximate diameter11 meters (H=27.53)
Closest Earth approach2.49 LD at 0732 UTC on 19 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 8 minutes
Inside ten LD of Earth11 to 26 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 11 Oct. 2019 UTC
based on 21 observations spanning 3 days
Optical observation  
  • reported from 4 observing codes during 2.8879 days: 691, F52, G96, H01
  • designation assigned to Mt. Lemmon Survey observation at 0757 UTC 8 Oct. 2019
  • last observed at 0516 UTC on 11 Oct. 2019 by the Spacewatch 0.9m telescope
Notesrisk, NHATS target
Links  
2019 TJ5   -     departed
Approximate diameter15 meters (H=26.712)
Closest Earth approach2.48 LD at 0058 UTC on 8 Oct. 2019
Inside ten LD of Earth4 to 11 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 11 Oct. 2019 UTC
based on 24 observations spanning 2 days
Optical observation  
  • reported from 7 observing codes during 1.9972 days: 691, 703, H01, I52, J95, Q62, Z80
  • designation assigned to Catalina Sky Survey observation at 0512 UTC 9 Oct. 2019
  • last observed at 0507 UTC on 11 Oct. 2019 by the Spacewatch 0.9m telescope
Notesrisk
Links  
2019 TP3   -     departed
Approximate diameter18 meters (H=26.417)
Closest Earth approach4.77 LD at 1502 UTC on 1 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 33 minutes
Inside ten LD of Earth27 Sept. until 5 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 8 Oct. 2019 UTC
based on 16 observations spanning one day
Optical observation  
  • reported from 4 observing codes during 24.233 hours: G96, H21, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0711 UTC 7 Oct. 2019
  • last observed at 0725 UTC on 8 Oct. 2019 by ARO Westfield
Links  
2019 TM3   -     departed
Approximate diameter11 meters (H=27.393)
Closest Earth approach1.25 LD at 0821 UTC on 8 Oct. 2019
Inside Earth SOI7 to 9 Oct. 2019
Inside ten LD of Earth3 to 12 Oct. 2019
Closest Moon approach1.55 LD at 0836 UTC on 8 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 8 Oct. 2019 UTC
based on 50 observations
Optical observation  
  • reported from 11 observing codes during 17.098 hours: 104, 160, 595, 718, 958, C47, G96, I52, K63, K83, L01
  • designation assigned to Mt. Lemmon Survey observation at 0547 UTC 7 Oct. 2019
  • last observed at 2253 UTC on 7 Oct. 2019 by Pascoli Obs.
Links  
2019 TL3   -     departed
Approximate diameter36 meters (H=24.89)
Closest Earth approach9.36 LD at 0924 UTC on 7 Oct. 2019 - Note: JPL indicates an approach uncertainty greater than 10 days
Inside ten LD of Earth6 to 8 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 8 Oct. 2019 UTC
based on 63 observations spanning one day
Optical observation  
  • reported from 14 observing codes during 1.5874 days: 033, 104, 160, 595, 958, C47, C95, F51, K41, K83, L01, T05, T08, Z84
  • designation assigned to ATLAS Haleakala observation at 0939 UTC 6 Oct. 2019
  • last observed at 2344 UTC on 7 Oct. 2019 by Calar Alto Schmidt
Links  
2019 TF3   -   outbound
Approximate diameter9 meters (H=27.975)
Closest Earth approach3.67 LD at 1108 UTC on 6 Oct. 2019
Inside ten LD of Earth28 Sept. until 14 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 7 Oct. 2019 UTC
based on 20 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 1.8622 days: 474, 807, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0549 UTC 5 Oct. 2019
  • last observed at 0231 UTC on 7 Oct. 2019 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2019 TU2   -     departed
Approximate diameter17 meters (H=26.553)
Closest Earth approach7.80 LD at 0343 UTC on 23 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 8.6167 hours
Inside ten LD of Earth20 to 26 Sept. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 7 Oct. 2019 UTC
based on 11 observations spanning one day
Optical observation  
  • reported from 2 observing codes during 1.0640 days: 807, F51
  • designation assigned to Pan-STARRS 1 observation at 1004 UTC 5 Oct. 2019
  • last observed at 1136 UTC on 6 Oct. 2019 by Pan-STARRS 1
NotesNHATS target
Links  
2019 TT2   -     departed
Approximate diameter13 meters (H=27.115)
Closest Earth approach6.01 LD at 0615 UTC on 2 Oct. 2019
Inside ten LD of Earth28 Sept. until 6 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 7 Oct. 2019 UTC
based on 12 observations spanning 2 days
Optical observation  
  • reported from 3 observing codes during 1.8964 days: 033, 734, F52
  • first observed at 1134 UTC on 5 Oct. 2019 by Pan-STARRS 2
  • designation assigned to Pan-STARRS 2 observation at 1025 UTC 6 Oct. 2019
  • last observed at 0905 UTC on 7 Oct. 2019 by Farpoint Obs.
Links  
2019 TH2   -   passing
Approximate diameter18 meters (H=26.384)
Closest Earth approach9.26 LD at 0603 UTC on 13 Oct. 2019
Inside ten LD of Earth11 to 15 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 10 Oct. 2019 UTC
based on 37 observations spanning 5 days
Optical observation  
  • reported from 8 observing codes during 4.9503 days: 474, 654, 691, 734, 807, F51, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0511 UTC 5 Oct. 2019
  • last observed at 0400 UTC on 10 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 TE2   -   approaching
Approximate diameter28 meters (H=25.434)
Closest Earth approach8.22 LD at 0053 UTC on 18 Oct. 2019
Inside ten LD of Earth15 to 20 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 12 Oct. 2019 UTC
based on 18 observations spanning 18 days
Optical observation  
  • reported from 5 observing codes during 17.5720 days: 474, 691, 807, F51, K87
  • first observed at 1026 UTC on 24 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 1018 UTC 5 Oct. 2019
  • last observed at 0009 UTC on 12 Oct. 2019 by Dettelbach Vineyard Obs.
Links  
2019 TC2   -     departed
Approximate diameter9 meters (H=27.827)
Closest Earth approach4.35 LD at 2202 UTC on 30 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth27 Sept. until 4 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 8 Oct. 2019 UTC
based on 21 observations spanning 3 days
Optical observation  
  • reported from 4 observing codes during 3.0679 days: 474, 695, 807, G96
  • designation assigned to Mt. Lemmon Survey observation at 0513 UTC 5 Oct. 2019
  • last observed at 0651 UTC on 8 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 TW1   -     departed
Approximate diameter9 meters (H=27.801)
Closest Earth approach1.47 LD at 0707 UTC on 8 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 9 minutes
Inside Earth SOI7 to 9 Oct. 2019
Inside ten LD of Earth4 to 12 Oct. 2019
Closest Moon approach2.20 LD at 0119 UTC on 8 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 6 Oct. 2019 UTC
based on 15 observations
Optical observation  
  • reported from 4 observing codes during 17.434 hours: 474, G96, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0617 UTC 5 Oct. 2019
  • last observed at 2343 UTC on 5 Oct. 2019 by Visnjan Obs.
Links  
2019 TT1   -   passing
Approximate diameter20 meters (H=26.101)
Closest Earth approach2.90 LD at 1823 UTC on 13 Oct. 2019
Inside ten LD of Earth10 to 16 Oct. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 12 Oct. 2019 UTC
based on 53 observations spanning 9 days
Optical observation  
  • reported from 7 observing codes during 8.7174 days: 807, G96, H21, I52, K87, K92, W87
  • designation assigned to Mt. Lemmon Survey observation at 0735 UTC 3 Oct. 2019
  • last observed at 0048 UTC on 12 Oct. 2019 by Dettelbach Vineyard Obs.
Links  
2019 TF1   -     departed
Approximate diameter11 meters (H=27.356)
Closest Earth approach7.97 LD at 0805 UTC on 26 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth23 to 29 Sept. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 7 Oct. 2019 UTC
based on 20 observations spanning 4 days
Optical observation  
  • reported from 4 observing codes during 4.1471 days: 291, 695, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0453 UTC 3 Oct. 2019
  • last observed at 0825 UTC on 7 Oct. 2019 by the Spacewatch 1.8m telescope
Notesrisk, NHATS target
Links  
2019 TC1   -     departed
Approximate diameter12 meters (H=27.335)
Closest Earth approach3.49 LD at 1139 UTC on 8 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 50 minutes
Inside ten LD of Earth5 to 11 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 4 Oct. 2019 UTC
based on 12 observations spanning one day
Optical observation  
  • reported from 3 observing codes during 22.922 hours: G96, H21, I52
  • designation assigned to Mt. Lemmon Survey observation at 0605 UTC 3 Oct. 2019
  • last observed at 0500 UTC on 4 Oct. 2019 by ARO Westfield
Links  
2019 TZ   -     departed
Approximate diameter17 meters (H=26.524)
Closest Earth approach8.02 LD at 1016 UTC on 9 Oct. 2019
Inside ten LD of Earth7 to 11 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 6 Oct. 2019 UTC
based on 17 observations spanning 4 days
Optical observation  
  • reported from 3 observing codes during 3.9643 days: G96, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 1041 UTC 2 Oct. 2019
  • last observed at 0949 UTC on 6 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 TX   -     departed
Approximate diameter6 meters (H=28.666)
Closest Earth approach1.25 LD at 2336 UTC on 4 Oct. 2019
Inside Earth SOI3 to 6 Oct. 2019
Inside ten LD of Earth28 Sept. until 11 Oct. 2019
Closest Moon approach2.22 LD at 2026 UTC on 4 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 4 Oct. 2019 UTC
based on 30 observations spanning 9 days
Optical observation  
  • reported from 9 observing codes during 9.5607 days: 104, 595, 703, 958, B49, F51, I52, I93, K63
  • first observed at 0959 UTC on 24 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0622 UTC 3 Oct. 2019
  • last observed at 2327 UTC on 3 Oct. 2019 by Dax Obs.
Notesrisk, NHATS target
Links  
2019 TW   -   outbound
Approximate diameter10 meters (H=27.738)
Closest Earth approach4.50 LD at 1641 UTC on 2 Oct. 2019
Inside ten LD of Earth21 Sept. until 13 Oct. 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 7 Oct. 2019 UTC
based on 32 observations spanning 9 days
Optical observation  
  • reported from 6 observing codes during 9.2584 days: 474, 703, F51, I52, I93, L01
  • first observed at 0631 UTC on 27 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0553 UTC 3 Oct. 2019
  • last observed at 1243 UTC on 6 Oct. 2019 by Pan-STARRS 1
NotesNHATS target
Links  
2019 TV   -     departed
Approximate diameter8 meters (H=28.031)
Closest Earth approach4.11 LD at 0656 UTC on 5 Oct. 2019
Inside ten LD of Earth30 Sept. until 9 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 4 Oct. 2019 UTC
based on 20 observations
Optical observation  
  • reported from 6 observing codes during 15.334 hours: 104, 474, G96, I52, I93, L01
  • designation assigned to Mt. Lemmon Survey observation at 0728 UTC 3 Oct. 2019
  • last observed at 2248 UTC on 3 Oct. 2019 by Visnjan Obs.
Links  
2019 TU   -     departed
Approximate diameter21 meters (H=26.02)
Closest Earth approach4.38 LD at 0626 UTC on 8 Oct. 2019
Inside ten LD of Earth4 to 12 Oct. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 9 Oct. 2019 UTC
based on 43 observations spanning 5 days
Optical observation  
  • reported from 8 observing codes during 4.9504 days: 474, 703, 807, I52, I93, L01, Q63, W85
  • designation assigned to Catalina Sky Survey observation at 0620 UTC 3 Oct. 2019
  • last observed at 0509 UTC on 8 Oct. 2019 by LCO Cerro Tololo A
Notesrisk
Links  
2019 TS   -     departed
Approximate diameter28 meters (H=25.44)
Closest Earth approach8.41 LD at 1435 UTC on 8 Oct. 2019
Inside ten LD of Earth5 to 11 Oct. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 9 Oct. 2019 UTC
based on 34 observations spanning 32 days
Optical observation  
  • reported from 8 observing codes during 31.8618 days: 104, 474, 703, F51, I52, I93, K63, W87
  • first observed at 1103 UTC on 6 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0728 UTC 3 Oct. 2019
  • last observed at 0744 UTC on 8 Oct. 2019 by LCO Cerro Tololo C
Links  
2019 TQ   -     departed
Approximate diameter40 meters (H=24.629)
Closest Earth approach8.44 LD at 2037 UTC on 2 Oct. 2019 - Note: JPL indicates an approach uncertainty greater than 10 days
Inside ten LD of Earth1 to 3 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 3 Oct. 2019 UTC
based on 68 observations spanning one day
Optical observation  
  • reported from 14 observing codes during 22.702 hours: 104, 160, 474, 850, C95, G96, H21, I52, J69, J95, K63, L01, W34, Z80
  • designation assigned to Mt. Lemmon Survey observation at 0455 UTC 2 Oct. 2019
  • last observed at 0337 UTC on 3 Oct. 2019 by Cordell-Lorenz Obs.
Links  
2019 TM   -     departed
Approximate diameter36 meters (H=24.875)
Closest Earth approach9.39 LD at 1202 UTC on 8 Oct. 2019
Inside ten LD of Earth7 to 9 Oct. 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 5 Oct. 2019 UTC
based on 42 observations spanning 13 days
Optical observation  
  • reported from 9 observing codes during 12.7855 days: 033, 104, 204, 807, 850, F51, G96, H21, I52
  • first observed at 0905 UTC on 22 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0348 UTC 2 Oct. 2019
  • last observed at 0356 UTC on 5 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 TK   -     departed
Approximate diameter8 meters (H=28.027)
Closest Earth approach1.22 LD at 1456 UTC on 3 Oct. 2019
Inside Earth SOI2 to 4 Oct. 2019
Inside ten LD of Earth30 Sept. until 6 Oct. 2019
Closest Moon approach2.19 LD at 1522 UTC on 3 Oct. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 5 Oct. 2019 UTC
based on 54 observations
Optical observation  
  • reported from 11 observing codes during 17.844 hours: 033, 104, 160, 703, B49, I52, J69, J95, K63, K96, Z80
  • designation assigned to Catalina Sky Survey observation at 0548 UTC 2 Oct. 2019
  • last observed at 2339 UTC on 2 Oct. 2019 by Great Shefford Obs.
Links  
2019 TE   -     departed intruder
Approximate diameter9 meters (H=27.951)
Closest Earth approach0.93 LD at 2030 UTC on 28 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 1.5167 hours
Inside Earth-Moon system1828-2232 UTC on 28 Sept. 2019
Inside Earth SOI28 to 29 Sept. 2019
Inside ten LD of Earth26 Sept. until 1 Oct. 2019
Closest Moon approach0.77 LD at 1546 UTC on 28 Sept. 2019
Inside one LD of Moon1217-1916 UTC on 28 Sept. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 2 Oct. 2019 UTC
based on 15 observations spanning one day
Optical observation  
  • reported from 3 observing codes during 22.987 hours: G96, H21, I52
  • designation assigned to Mt. Lemmon Survey observation at 0551 UTC 1 Oct. 2019
  • last observed at 0450 UTC on 2 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 TD   -     departed intruder
Approximate diameter5 meters (H=29.175)
Closest Earth approach0.34 LD at 1848 UTC on 29 Sept. 2019
Inside Earth-Moon system0839 on 29 Sept. until 0456 UTC on 30 Sept. 2019
Inside Earth SOI28 to 30 Sept. 2019
Inside ten LD of Earth25 Sept. until 4 Oct. 2019
Closest Moon approach0.33 LD at 1006 UTC on 29 Sept. 2019
Inside one LD of Moon0029-1941 UTC on 29 Sept. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 7 Oct. 2019 UTC
based on 26 observations spanning 6 days
Optical observation  
  • reported from 6 observing codes during 5.9951 days: 291, 695, G96, H21, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0757 UTC 1 Oct. 2019
  • last observed at 0750 UTC on 7 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 TB   -     departed
Approximate diameter13 meters (H=27.153)
Closest Earth approach6.12 LD at 0351 UTC on 27 Sept. 2019
Inside ten LD of Earth21 Sept. until 3 Oct. 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 7 Oct. 2019 UTC
based on 35 observations spanning 6 days
Optical observation  
  • reported from 7 observing codes during 5.9186 days: 291, 691, 695, G96, H21, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0427 UTC 1 Oct. 2019
  • last observed at 0229 UTC on 7 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
NotesNHATS target
Links  
2019 TA   -     departed
Approximate diameter4 meters (H=29.457)
Closest Earth approach1.17 LD at 0649 UTC on 29 Sept. 2019
Inside Earth SOI27 to 30 Sept. 2019
Inside ten LD of Earth22 Sept. until 6 Oct. 2019
Closest Moon approach1.66 LD at 1949 UTC on 28 Sept. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 7 Oct. 2019 UTC
based on 25 observations spanning 4 days
Optical observation  
  • reported from 6 observing codes during 3.9379 days: 291, 691, G96, H21, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0701 UTC 1 Oct. 2019
  • last observed at 0532 UTC on 5 Oct. 2019 by ARO Westfield
NotesNHATS target
Links  
2019 SU10   -     departed
Approximate diameter12 meters (H=27.166)
Closest Earth approach1.88 LD at 0234 UTC on 26 Sept. 2019
Inside Earth SOI25 to 26 Sept. 2019
Inside ten LD of Earth22 to 29 Sept. 2019
Closest Moon approach2.61 LD at 0510 UTC on 26 Sept. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 5 Oct. 2019 UTC
based on 24 observations spanning one day
Optical observation  
  • reported from one observing code during 1.2576 days: 381
  • designation assigned to Tokyo-Kiso Obs. observation at 1154 UTC 25 Sept. 2019
  • last observed at 1805 UTC on 26 Sept. 2019 by Tokyo-Kiso Obs.
Links  
2019 SV9   -   outbound
Approximate diameter28 meters (H=25.416)
Closest Earth approach8.56 LD at 2148 UTC on 12 Oct. 2019
Inside ten LD of Earth11 to 14 Oct. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 12 Oct. 2019 UTC
based on 31 observations spanning 11 days
Optical observation  
  • reported from 6 observing codes during 10.9993 days: G96, H01, H21, I52, V37, W87
  • designation assigned to Mt. Lemmon Survey observation at 0439 UTC 30 Sept. 2019
  • last observed at 0438 UTC on 11 Oct. 2019 by LCO McDonald Obs.
Links  
2019 SK9   -     departed
Approximate diameter13 meters (H=27.109)
Closest Earth approach3.07 LD at 1151 UTC on 25 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth22 to 27 Sept. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 7 Oct. 2019 UTC
based on 17 observations spanning 7 days
Optical observation  
  • reported from 4 observing codes during 6.9741 days: 291, 695, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0710 UTC 30 Sept. 2019
  • last observed at 0633 UTC on 7 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 SJ9   -     departed
Approximate diameter13 meters (H=26.998)
Closest Earth approach7.77 LD at 1221 UTC on 1 Oct. 2019
Inside ten LD of Earth28 Sept. until 4 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 3 Oct. 2019 UTC
based on 14 observations spanning 3 days
Optical observation  
  • reported from 3 observing codes during 2.7377 days: G96, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0643 UTC 30 Sept. 2019
  • last observed at 0025 UTC on 3 Oct. 2019 by Great Shefford Obs.
Links  
2019 SH9   -     departed
Approximate diameter9 meters (H=27.802)
Closest Earth approach4.54 LD at 0738 UTC on 3 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 43 minutes
Inside ten LD of Earth30 Sept. until 5 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 1 Oct. 2019 UTC
based on 11 observations spanning one day
Optical observation  
  • reported from 2 observing codes during 1.2161 days: G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0642 UTC 30 Sept. 2019
  • last observed at 1153 UTC on 1 Oct. 2019 by the Mt. Lemmon Survey
Links  
2019 SG9   -     departed
Approximate diameter34 meters (H=24.984)
Closest Earth approach9.54 LD at 1405 UTC on 25 Sept. 2019
Inside ten LD of Earth24 to 26 Sept. 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 7 Oct. 2019 UTC
based on 57 observations spanning 7 days
Optical observation  
  • reported from 13 observing codes during 6.9097 days: 104, 203, 595, 703, 850, F51, G96, H21, I52, I93, K61, K63, K88
  • designation assigned to Catalina Sky Survey observation at 0611 UTC 30 Sept. 2019
  • last observed at 0401 UTC on 7 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 SB9   -     departed
Approximate diameter8 meters (H=28.049)
Closest Earth approach2.54 LD at 1808 UTC on 27 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 8 minutes
Inside ten LD of Earth23 Sept. until 1 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 1 Oct. 2019 UTC
based on 11 observations spanning one day
Optical observation  
  • reported from 2 observing codes during 23.434 hours: G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0538 UTC 30 Sept. 2019
  • last observed at 0504 UTC on 1 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 SA9   -     departed
Approximate diameter15 meters (H=26.781)
Closest Earth approach9.14 LD at 0359 UTC on 25 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 1.7333 hours
Inside ten LD of Earth23 to 26 Sept. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 1 Oct. 2019 UTC
based on 15 observations spanning one day
Optical observation  
  • reported from 4 observing codes during 23.719 hours: G96, H01, H21, I52
  • designation assigned to Mt. Lemmon Survey observation at 0531 UTC 30 Sept. 2019
  • last observed at 0514 UTC on 1 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 SX8   -     departed intruder
Approximate diameter6 meters (H=28.941)
Closest Earth approach0.99 LD at 0749 UTC on 28 Sept. 2019
Inside Earth-Moon system0615-0922 UTC on 28 Sept. 2019
Inside Earth SOI27 to 29 Sept. 2019
Inside ten LD of Earth22 Sept. until 3 Oct. 2019
Closest Moon approach1.06 LD at 2319 UTC on 27 Sept. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 8 Oct. 2019 UTC
based on 25 observations spanning 8 days
Optical observation  
  • reported from 5 observing codes during 7.9979 days: 291, 695, G96, H21, I52
  • designation assigned to Mt. Lemmon Survey observation at 0821 UTC 30 Sept. 2019
  • last observed at 0818 UTC on 8 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 ST8   -     departed
Approximate diameter29 meters (H=25.342)
Closest Earth approach7.31 LD at 1509 UTC on 27 Sept. 2019
Inside ten LD of Earth25 to 29 Sept. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 7 Oct. 2019 UTC
based on 70 observations spanning 7 days
Optical observation  
  • reported from 13 observing codes during 7.0222 days: 204, 586, 703, 850, 958, E23, H21, I52, I93, K61, K63, K74, K88
  • designation assigned to Catalina Sky Survey observation at 0517 UTC 30 Sept. 2019
  • last observed at 0549 UTC on 7 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 SO8   -     departed
Approximate diameter16 meters (H=26.67)
Closest Earth approach7.67 LD at 0138 UTC on 27 Sept. 2019
Inside ten LD of Earth24 to 30 Sept. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 2 Oct. 2019 UTC
based on 20 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 1.9459 days: F51, G96, I52, I93
  • first observed at 1314 UTC on 29 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0710 UTC 30 Sept. 2019
  • last observed at 1156 UTC on 1 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 SM8   -     departed intruder
Approximate diameter5 meters (H=29.196)
Closest Earth approach0.41 LD at 1355 UTC on 1 Oct. 2019
Inside Earth-Moon system0702-2047 UTC on 1 Oct. 2019
Inside Earth SOI30 Sept. until 2 Oct. 2019
Inside ten LD of Earth28 Sept. until 4 Oct. 2019
Closest Moon approach0.85 LD at 1813 UTC on 1 Oct. 2019
Inside one LD of Moon1425-2203 UTC on 1 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 1 Oct. 2019 UTC
based on 34 observations
Optical observation  
  • reported from 9 observing codes during 18.326 hours: 203, 587, 958, G96, H01, I52, I93, K63, K88
  • designation assigned to Mt. Lemmon Survey observation at 0538 UTC 30 Sept. 2019
  • last observed at 2358 UTC on 30 Sept. 2019 by Dax Obs.
Notesrisk
Links  
2019 SL8   -     departed
Approximate diameter23 meters (H=25.878)
Closest Earth approach7.87 LD at 0239 UTC on 3 Oct. 2019
Inside ten LD of Earth1 to 5 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 1 Oct. 2019 UTC
based on 20 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 1.5467 days: F51, G96, I52, I93, K63, K88
  • first observed at 1104 UTC on 29 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0711 UTC 30 Sept. 2019
  • last observed at 0011 UTC on 1 Oct. 2019 by Pascoli Obs.
Links  
2019 SE8   -     departed
Approximate diameter14 meters (H=26.854)
Closest Earth approach2.82 LD at 1510 UTC on 1 Oct. 2019
Inside ten LD of Earth29 Sept. until 3 Oct. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 30 Sept. 2019 UTC
based on 22 observations
Optical observation  
  • reported from 5 observing codes during 14.681 hours: 587, 595, G96, H01, I52
  • designation assigned to Mt. Lemmon Survey observation at 0512 UTC 30 Sept. 2019
  • last observed at 1953 UTC on 30 Sept. 2019 by Sormano Obs.
Notesrisk
Links  
2019 SD8   -     departed
Approximate diameter12 meters (H=27.336)
Closest Earth approach1.38 LD at 0228 UTC on 2 Oct. 2019
Inside Earth SOI1 to 2 Oct. 2019
Inside ten LD of Earth28 Sept. until 6 Oct. 2019
Closest Moon approach1.69 LD at 0523 UTC on 2 Oct. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 12 Oct. 2019 UTC
based on 48 observations spanning 9 days including radar
Optical observation  
  • reported from 11 observing codes during 8.6782 days: 587, 595, 703, C77, F51, H01, H21, I52, I93, K61, K63
  • first observed at 0908 UTC on 22 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0510 UTC 30 Sept. 2019
  • last observed at 0125 UTC on 1 Oct. 2019 by ARO Westfield
Radar observation  
  • observed 2 times from one location during 0.0146 days
  • first observed at 0256 UTC on 1 Oct. 2019 by Arecibo
  • last observed at 0317 UTC on 1 Oct. 2019 by Arecibo
Links  
2019 SN7   -     departed
Approximate diameter28 meters (H=25.447)
Closest Earth approach4.93 LD at 0455 UTC on 4 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 1.9833 hours
Inside ten LD of Earth30 Aug. until 9 Sept. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 30 Sept. 2019 UTC
based on 10 observations spanning 6 days
Optical observation  
  • reported from 2 observing codes during 5.7277 days: F51, H21
  • designation assigned to Pan-STARRS 1 observation at 1417 UTC 24 Sept. 2019
  • last observed at 0745 UTC on 30 Sept. 2019 by ARO Westfield
Links  
2019 SL7   -     departed
Approximate diameter24 meters (H=25.747)
Closest Earth approach1.41 LD at 1427 UTC on 9 Oct. 2019
Inside Earth SOI9 to 10 Oct. 2019
Inside ten LD of Earth7 to 12 Oct. 2019
Closest Moon approach2.01 LD at 0938 UTC on 9 Oct. 2019
Data based onJPL SSD orbit solution #10 downloaded from JPL on 12 Oct. 2019 UTC
based on 80 observations spanning 13 days
Optical observation  
  • reported from 13 observing codes during 12.8589 days: 160, 291, 691, 703, 718, F51, H21, I52, J69, J95, K91, K92, Z80
  • designation assigned to Pan-STARRS 1 observation at 1024 UTC 26 Sept. 2019
  • last observed at 0701 UTC on 9 Oct. 2019 by ARO Westfield
Notesrisk
Links  
2019 SY6   -     distant
Approximate diameter32 meters (H=25.115)
Closest Earth approach
Distance from Earth22.6 - 31.5 LD min-max during the observation period
Data based onJPL SSD orbit solution #2 downloaded from JPL on 1 Oct. 2019 UTC
based on 17 observations spanning 4 days
Optical observation  
  • reported from 4 observing codes during 3.6771 days: F51, I52, J95, L01
  • first observed at 1137 UTC on 27 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 1004 UTC 29 Sept. 2019
  • last observed at 0352 UTC on 1 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Notesprevious passage Sept. 2009 at 7.1 LD +/- 4.283 hours uncertainty (unobserved) and passage Sept. 2014 at 6.97 LD +/- 15 mins. uncertainty (unobserved)
Links  
2019 SU6   -     departed
Approximate diameter17 meters (H=26.479)
Closest Earth approach2.89 LD at 2126 UTC on 26 Sept. 2019
Inside ten LD of Earth24 to 29 Sept. 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 6 Oct. 2019 UTC
based on 40 observations spanning 2 days
Optical observation  
  • reported from 7 observing codes during 2.0238 days: 586, 703, F51, G96, H01, I52, L01
  • designation assigned to Catalina Sky Survey observation at 0917 UTC 29 Sept. 2019
  • last observed at 0951 UTC on 1 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 SO6   -     departed
Approximate diameter25 meters (H=25.638)
Closest Earth approach2.42 LD at 1316 UTC on 20 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 9 minutes
Inside ten LD of Earth19 to 22 Sept. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 6 Oct. 2019 UTC
based on 21 observations spanning 10 days
Optical observation  
  • reported from 5 observing codes during 10.0205 days: 291, 695, F51, H21, J04
  • designation assigned to Pan-STARRS 1 observation at 0704 UTC 26 Sept. 2019
  • last observed at 0734 UTC on 6 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 SC6   -     departed
Approximate diameter9 meters (H=27.779)
Closest Earth approach1.39 LD at 0341 UTC on 27 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside Earth SOI26 to 27 Sept. 2019
Inside ten LD of Earth24 to 29 Sept. 2019
Closest Moon approach1.41 LD at 2305 UTC on 26 Sept. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 29 Sept. 2019 UTC
based on 17 observations
Optical observation  
  • reported from 5 observing codes during 16.898 hours: G96, H01, I52, J04, K87
  • designation assigned to Mt. Lemmon Survey observation at 0450 UTC 28 Sept. 2019
  • last observed at 2144 UTC on 28 Sept. 2019 by ESA Optical Ground Station
Links  
2019 SB6   -     departed
Approximate diameter15 meters (H=26.736)
Closest Earth approach7.75 LD at 1202 UTC on 8 Oct. 2019 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth4 to 12 Oct. 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 3 Oct. 2019 UTC
based on 21 observations spanning 5 days
Optical observation  
  • reported from 5 observing codes during 4.9091 days: G96, H01, I52, J04, L01
  • designation assigned to Mt. Lemmon Survey observation at 0519 UTC 28 Sept. 2019
  • last observed at 0308 UTC on 3 Oct. 2019 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2019 SW5   -     departed
Approximate diameter32 meters (H=25.119)
Closest Earth approach1.92 LD at 0752 UTC on 26 Sept. 2019
Inside Earth SOI25 to 26 Sept. 2019
Inside ten LD of Earth23 to 29 Sept. 2019
Closest Moon approach2.41 LD at 0412 UTC on 26 Sept. 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 6 Oct. 2019 UTC
based on 127 observations spanning 4 days
Optical observation  
  • reported from 28 observing codes during 3.7494 days: 104, 586, 595, 703, 850, 932, 958, G34, G40, G96, H01, H21, I52, J04, J69, J95, K63, K83, K87, K96, L01, L04, L29, T05, T08, X31, Z80, Z99
  • designation assigned to ATLAS Mauna Loa observation at 1253 UTC 27 Sept. 2019
  • last observed at 0652 UTC on 1 Oct. 2019 by the Catalina Sky Survey
Links  
2019 SF4   -     departed
Approximate diameter22 meters (H=25.95)
Closest Earth approach6.82 LD at 1559 UTC on 15 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth11 to 19 Sept. 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 8 Oct. 2019 UTC
based on 21 observations spanning 8 days
Optical observation  
  • reported from 4 observing codes during 7.7825 days: F51, G96, H21, L01
  • designation assigned to Pan-STARRS 1 observation at 1228 UTC 25 Sept. 2019
  • last observed at 0715 UTC on 3 Oct. 2019 by ARO Westfield
Links  
2019 SX3   -     departed
Approximate diameter29 meters (H=25.372)
Closest Earth approach8.63 LD at 0559 UTC on 2 Oct. 2019
Inside ten LD of Earth29 Sept. until 4 Oct. 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 3 Oct. 2019 UTC
based on 78 observations spanning 7 days
Optical observation  
  • reported from 15 observing codes during 7.1037 days: 160, 595, 958, C73, G34, H01, H21, I52, J04, J95, K63, K88, L01, T05, V37
  • first observed at 0746 UTC on 25 Sept. 2019 by ATLAS Haleakala
  • designation assigned to ATLAS Haleakala observation at 1028 UTC 25 Sept. 2019
  • last observed at 1015 UTC on 2 Oct. 2019 by LCO McDonald Obs.
Links  
2019 SU3   -     departed
Approximate diameter12 meters (H=27.196)
Closest Earth approach2.36 LD at 0402 UTC on 24 Sept. 2019
Inside Earth SOI23 to 24 Sept. 2019
Inside ten LD of Earth6 Sept. until 10 Oct. 2019
Data based onJPL SSD orbit solution #18 downloaded from JPL on 12 Oct. 2019 UTC
based on 121 observations spanning 18 days including radar
Optical observation  
  • reported from 21 observing codes during 17.9279 days: 160, 291, 586, 587, 679, 691, 703, 850, F51, G34, G40, I52, J04, J69, J95, L18, Q62, T05, T08, T12, Z80
  • designation assigned to ATLAS Haleakala observation at 0559 UTC 23 Sept. 2019
  • last observed at 0415 UTC on 11 Oct. 2019 by the Spacewatch 0.9m telescope
Radar observation  
  • observed 2 times from one location during 0.0229 days
  • first observed at 0352 UTC on 1 Oct. 2019 by Arecibo
  • last observed at 0425 UTC on 1 Oct. 2019 by Arecibo
NotesNHATS target
Links  
2019 SP3   -     departed intruder
Approximate diameter19 meters (H=26.298)
Closest Earth approach0.97 LD at 0632 UTC on 3 Oct. 2019
Inside Earth-Moon system0323-0940 UTC on 3 Oct. 2019
Inside Earth SOI2 to 4 Oct. 2019
Inside ten LD of Earth28 Sept. until 8 Oct. 2019
Closest Moon approach1.39 LD at 0104 UTC on 3 Oct. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 2 Oct. 2019 UTC
based on 24 observations spanning 9 days
Optical observation  
  • reported from 5 observing codes during 8.8111 days: 691, F51, I52, J04, T12
  • designation assigned to Pan-STARRS 1 observation at 0650 UTC 22 Sept. 2019
  • last observed at 0218 UTC on 1 Oct. 2019 by Steward Obs. Mt. Lemmon Station
Notesrisk
Links  
2019 SN3   -     departed
Approximate diameter16 meters (H=26.684)
Closest Earth approach2.20 LD at 1144 UTC on 30 Sept. 2019
Inside Earth SOI29 Sept. until 1 Oct. 2019
Inside ten LD of Earth24 Sept. until 6 Oct. 2019
Closest Moon approach3.07 LD at 1332 UTC on 30 Sept. 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 30 Sept. 2019 UTC
based on 24 observations spanning 7 days
Optical observation  
  • reported from 6 observing codes during 6.7339 days: F51, J04, J95, L29, R57, T08
  • designation assigned to Pan-STARRS 1 observation at 0724 UTC 23 Sept. 2019
  • last observed at 0101 UTC on 30 Sept. 2019 by Great Shefford Obs.
Links  
2019 SL3   -     departed
Approximate diameter12 meters (H=27.337)
Closest Earth approach7.30 LD at 0354 UTC on 22 Sept. 2019
Inside ten LD of Earth17 to 26 Sept. 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 7 Oct. 2019 UTC
based on 18 observations spanning 13 days
Optical observation  
  • reported from 5 observing codes during 12.9680 days: 291, 654, F51, I52, L01
  • designation assigned to Pan-STARRS 1 observation at 1040 UTC 24 Sept. 2019
  • last observed at 0954 UTC on 7 Oct. 2019 by the Spacewatch 1.8m telescope
NotesNHATS target
Links  
2019 SH3   -     departed
Approximate diameter26 meters (H=25.567)
Closest Earth approach3.13 LD at 0136 UTC on 30 Sept. 2019
Inside ten LD of Earth27 Sept. until 3 Oct. 2019
Data based onJPL SSD orbit solution #9 downloaded from JPL on 4 Oct. 2019 UTC
based on 47 observations spanning 8 days
Optical observation  
  • reported from 9 observing codes during 7.6992 days: F51, G34, H21, J69, J95, K92, L01, T05, Z80
  • designation assigned to Pan-STARRS 1 observation at 0914 UTC 22 Sept. 2019
  • last observed at 0201 UTC on 30 Sept. 2019 by Great Shefford Obs.
Links  
2019 SQ1   -     departed
Approximate diameter10 meters (H=27.626)
Closest Earth approach3.18 LD at 1120 UTC on 10 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth3 to 17 Sept. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 3 Oct. 2019 UTC
based on 25 observations spanning 13 days
Optical observation  
  • reported from 7 observing codes during 13.1323 days: 291, 807, G96, H21, I52, L01, T12
  • designation assigned to Mt. Lemmon Survey observation at 0647 UTC 20 Sept. 2019
  • last observed at 0958 UTC on 3 Oct. 2019 by the Spacewatch 1.8m telescope
NotesNHATS target
Links  
2019 SF1   -     departed
Approximate diameter19 meters (H=26.289)
Closest Earth approach2.05 LD at 1635 UTC on 10 Sept. 2019 - Note: JPL reports an approach uncertainty of +/- 5 minutes
Inside Earth SOI9 to 11 Sept. 2019
Inside ten LD of Earth3 to 17 Sept. 2019
Closest Moon approach1.52 LD at 0207 UTC on 11 Sept. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 6 Oct. 2019 UTC
based on 37 observations spanning 16 days
Optical observation  
  • reported from 9 observing codes during 15.9880 days: 104, 691, A17, G96, H21, K87, L01, T12, Z99
  • designation assigned to Mt. Lemmon Survey observation at 0845 UTC 20 Sept. 2019
  • last observed at 0828 UTC on 6 Oct. 2019 by the Spacewatch 0.9m telescope
NotesNHATS target
Links  
2019 SJ   -     departed intruder
Approximate diameter11 meters (H=27.494)
Closest Earth approach0.64 LD at 1855 UTC on 16 Sept. 2019
Inside Earth-Moon system0918 on 16 Sept. until 0431 UTC on 17 Sept. 2019
Inside Earth SOI15 to 17 Sept. 2019
Inside ten LD of Earth11 to 21 Sept. 2019
Closest Moon approach0.26 LD at 0208 UTC on 17 Sept. 2019
Inside one LD of Moon1448 on 16 Sept. until 1331 UTC on 17 Sept. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 5 Oct. 2019 UTC
based on 40 observations spanning 17 days
Optical observation  
  • reported from 10 observing codes during 16.8046 days: 291, 695, F51, G96, H21, J95, K63, K88, L01, T12
  • first observed at 0836 UTC on 18 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0723 UTC 19 Sept. 2019
  • last observed at 0355 UTC on 5 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk, NHATS target
Links  
2019 SD   -     departed
Approximate diameter28 meters (H=25.404)
Closest Earth approach5.81 LD at 1118 UTC on 16 Sept. 2019
Inside ten LD of Earth12 to 20 Sept. 2019
Data based onJPL SSD orbit solution #16 downloaded from JPL on 10 Oct. 2019 UTC
based on 137 observations spanning 23 days
Optical observation  
  • reported from 24 observing codes during 23.0882 days: 246, 291, 585, 691, 695, 703, A17, A44, C95, F51, G34, H36, I52, I93, J04, J69, J95, K61, K88, L01, T12, X31, Z43, Z80
  • first observed at 0546 UTC on 17 Sept. 2019 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0534 UTC 18 Sept. 2019
  • last observed at 0752 UTC on 10 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 RT3   -     departed
Approximate diameter31 meters (H=25.164)
Closest Earth approach1.45 LD at 0409 UTC on 9 Sept. 2019
Inside Earth SOI8 to 10 Sept. 2019
Inside ten LD of Earth3 to 15 Sept. 2019
Closest Moon approach2.21 LD at 2138 UTC on 8 Sept. 2019
Data based onJPL SSD orbit solution #17 downloaded from JPL on 13 Oct. 2019 UTC
based on 103 observations spanning 29 days
Optical observation  
  • reported from 22 observing codes during 28.7575 days: 203, 204, 291, 595, 679, 695, 850, A17, A44, C95, G40, H21, J04, J95, K38, K87, K88, L01, L34, T08, T12, W34
  • designation assigned to ATLAS Mauna Loa observation at 1429 UTC 11 Sept. 2019
  • last observed at 0840 UTC on 10 Oct. 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 RP2   -     departed
Approximate diameter6 meters (H=28.911)
Closest Earth approach8.44 LD at 1219 UTC on 20 Sept. 2019
Inside ten LD of Earth7 Sept. until 4 Oct. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 6 Oct. 2019 UTC
based on 25 observations spanning 29 days
Optical observation  
  • reported from 4 observing codes during 29.0313 days: 291, 568, 691, F51
  • designation assigned to Pan-STARRS 1 observation at 1002 UTC 6 Sept. 2019
  • last observed at 1047 UTC on 5 Oct. 2019 by the Spacewatch 1.8m telescope
NotesNHATS target
Links  
2019 RW1   -     departed
Approximate diameter37 meters (H=24.806)
Closest Earth approach7.16 LD at 2310 UTC on 27 Aug. 2019
Inside ten LD of Earth21 Aug. until 3 Sept. 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 3 Oct. 2019 UTC
based on 39 observations spanning 28 days
Optical observation  
  • reported from 10 observing codes during 27.9710 days: 204, 291, 595, 691, 703, G96, H21, I52, I93, L01
  • designation assigned to Catalina Sky Survey observation at 1013 UTC 5 Sept. 2019
  • last observed at 0931 UTC on 3 Oct. 2019 by the Mt. Lemmon Survey
Links  
2019 QU3   -     departed
Approximate diameter6 meters (H=28.706)
Closest Earth approach1.74 LD at 1338 UTC on 24 Aug. 2019
Inside Earth SOI23 to 25 Aug. 2019
Inside ten LD of Earth17 to 31 Aug. 2019
Closest Moon approach2.23 LD at 0000 UTC on 25 Aug. 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 6 Oct. 2019 UTC
based on 26 observations spanning 12 days
Optical observation  
  • reported from 7 observing codes during 39.2446 days: F52, G96, H01, H21, I52, T12, T14
  • designation assigned to Mt. Lemmon Survey observation at 0816 UTC 27 Aug. 2019
  • last observed at 1408 UTC on 5 Oct. 2019 by Pan-STARRS 2
Notesrisk
Links  
2019 HM   -     distant
Approximate diameter23 meters (H=25.881)
Closest Earth approach
Distance from Earth22.2 LD during the observation period
Data based onJPL SSD orbit solution #4 downloaded from JPL on 6 Oct. 2019 UTC
based on 35 observations spanning 158 days
Optical observation  
  • reported from one observing code during 0.113 hours: T12
  • first observed at 1422 UTC on 27 Sept. 2019 by UH/Tholen NEO Follow-Up 2.24m Telescope
  • last observed at 1429 UTC on 27 Sept. 2019 by UH/Tholen NEO Follow-Up 2.24m Telescope
NotesNHATS target
previous passage April 2019 at 8.33 LD
Links  
2017 SL16   -     departed
Approximate diameter23 meters (H=25.8)
Closest Earth approach7.89 LD at 0211 UTC on 21 Sept. 2019
Inside ten LD of Earth16 to 25 Sept. 2019
Data based onJPL SSD orbit solution #10 downloaded from JPL on 4 Oct. 2019 UTC
based on 57 observations spanning 2017-2019
Optical observation  
  • reported from 3 observing codes during 9.6971 days: 474, 691, C95
  • first observed at 2134 UTC on 23 Sept. 2019 by SATINO-1
  • last observed at 1418 UTC on 3 Oct. 2019 by Mt. John Obs.
NotesNHATS target
previous observation Sept. 2017 and passage Sept. 2018 at 8.49 LD
Links  
2017 KP27   -     departed
Approximate diameter23 meters (H=25.8)
Closest Earth approach4.22 LD at 1935 UTC on 26 Sept. 2019
Inside ten LD of Earth18 Sept. until 5 Oct. 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 22 Sept. 2019 UTC
based on 59 observations spanning 2017-2019
Optical observation  
  • reported from 9 observing codes during 15.5684 days: 568, 595, 691, 711, C47, F51, H21, K87, L01
  • first observed at 1310 UTC on 6 Sept. 2019 by Pan-STARRS 1
  • last observed at 0248 UTC on 22 Sept. 2019 by Dettelbach Vineyard Obs.
NotesNHATS target
previous passage May 2017 at 8.11 LD
Links  
163899 2003 SD220   -     distant
Approximate diameter1.23 k meters (H=17.2)
Closest Earth approach
Distance from Earth533.7 - 547.1 LD min-max during the observation period
Data based onJPL SSD orbit solution #110 downloaded from JPL on 11 Oct. 2019 UTC
based on 1075 observations spanning 2000-2019 including radar
Optical observation  
  • reported from 2 observing codes during 16.0218 days: 703, I41
  • first observed at 1218 UTC on 23 Sept. 2019 by the Zwicky Transient Facility
  • last observed at 1249 UTC on 9 Oct. 2019 by the Zwicky Transient Facility
Notesradar target, NHATS target, other ID: 2000 AD229
previous observation Sept.-Dec. 2009, observation Jan. 2012, observation Sept.-Dec. 2012, observation Sept.-Dec. 2015, and passage Dec. 2018 at 7.36 LD
Links  

Footnotes

Illustration of ten lunar distances.

1. Ten lunar distances:  One "lunar distance" (LD) is the average distance between Earth and Moon (about 384,400 km., the same as 238,855 miles or 9.59 times around Earth's equator). Ten lunar distances has no special astronomical importance but is a useful giant traveling "bubble" within which to organize this special reporting. The approach of a small Solar-System body becomes more interesting when it nears or comes closer than 2.41 LD, as it encounters our planet's gravitational sphere of influence ( SOI). Earth's gravity can change the orbits of objects passing through its SOI. The Moon also has its own SOI, which changes as its distance from Earth varies, but never extends much more than 0.18 LD. (The simple illustration above, with Earth and Moon not to scale, shows the Earth SOI as a dotted vertical blue line.) The "Earth-Moon system" is generally defined as that region of space within a radius of one lunar distance from Earth, so an object can pass quite close to the Moon yet not be described as coming "inside" the E-M system.

2. Data credit:  All data on this page derived from orbit solutions comes from the NASA JPL Solar System Dynamics (SSD) Group through its Horizons system. All information about optical observations comes from the IAU Minor Planet Center (MPC) and info about radar observations comes from JPL SSD. The MPC, NASA, and JPL are not associated with this page or A/CC, and responsibility for the interpretation of this information and its use here rests entirely with A/CC. Important note: Approach times presented here as to-the-minute may have unstated uncertainties of a few minutes, or many minutes or even hours for objects with old or very short observation spans, which is significant because the Earth moves through its own diameter in about seven minutes. Thus actual encounter distances may vary, occasionally by as much as ten lunar distances. See JPL's Close Approach Tables for nominal vs. minimum possible passage distances and times, and for their note about uncertainties.

3. Size estimates:  Object diameters are rough approximations derived by standard formula from H, an object's "absolute magnitude" (brightness), where higher numbers represent dimmer (thus usually smaller) objects.