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Legend - object IDs plus links to more info

Data compiled at 1743 UTC on 21 Oct. 2017 for 66 known objects during a period of seven days from 18 to 24 Oct. 2017. Orange is for objects with a new JPL orbit solution (usually from new observation).

Chart
ID

Full ID
Period
Closest
Passage
Uncertainty

Status
NB72017 NB7101.23 LD  departed
RS22017 RS238.88 LD  departed
RV22017 RV258.88 LD  departed
SE332017 SE3360.5 LD+/- 35 minutes  departed
SM212017 SM2151.85 LD  departed
SN212017 SN2115.28 LD  departed
SP212017 SP2129.90 LD  departed
SZ322017 SZ32143.22 LD  departed intruder
TA52017 TA522.70 LD  departed
TA62017 TA66.64 LD+/- one minuteoutbound
TC42012 TC48.53 LD  departed intruder
TD62017 TD60.50 LDoutbound intruder
TE12017 TE138.64 LD  departed
TE42017 TE415.47 LD+/- one minute  departed
TE52017 TE51.87 LDoutbound
TE492005 TE4913.6 LD+/- 10.1167 hours  departed
TF52017 TF539.5 LD+/- 20 minutes  departed intruder
TG42017 TG44.80 LDpassing
TH22017 TH29.97 LD  departed
TH42017 TH423.30 LD  departed
TH52017 TH53.40 LD  departed intruder
TJ62017 TJ611.92 LD+/- one minute  departed
TK22017 TK213.28 LD  departed
TK42017 TK44.60 LDoutbound
TL22017 TL222.20 LD  departed
TM42017 TM420.77 LD  departed
TQ22017 TQ257.53 LD  departed intruder
TQ52017 TQ55.50 LDinbound
TR22017 TR244.2 LD> 10 days  departed
TS12017 TS133.64 LD  departed
TT12017 TT111.92 LD  departed
TT32017 TT340.40 LD+/- one minute  departed
TT42017 TT429.71 LD  departed
TU12017 TU111.65 LD  departed
TU32017 TU38.38 LD  departed
TU52017 TU510.51 LD  departed
TV12017 TV110.30 LD  departed
TV32017 TV316.27 LD  departed
TV52017 TV53.37 LDinbound
TW52017 TW53.14 LD  departed
TX42017 TX423.23 LD  departed
TX52017 TX54.56 LDoutbound
TY32017 TY356.29 LD+/- 2 minutes  departed
TY52017 TY512.51 LD  departed
TZ52017 TZ513.36 LD  departed
UA2017 UA1.36 LDoutbound
UD2017 UD13.11 LD  departed
UE2017 UE9.68 LD  departed
UE12017 UE131.7 LD+/- 21 minutes  departed
UF2017 UF14.85 LD  departed intruder
UG2017 UG4.27 LDoutbound
UH12017 UH14.94 LDpassing
UJ2017 UJ2.76 LDoutbound
UK444584 2006 UK83.54 LDapproaching
UK12017 UK112.97 LD  departed
UM12017 UM16.95 LDpassing
UP12017 UP115.43 LD+/- one minute  departed
UQ12017 UQ122.67 LD+/- one minute  departed
UR2017 UR7.94 LD  departed
US2017 US7.46 LD+/- one minuteinbound
UT12017 UT17.04 LD  departed
UU2017 UU12.22 LD  departed
UU12017 UU12.34 LDoutbound
UV112003 UV1137.3 LD  distant
UW158436724 2011 UW158183.4 LD  distant
VP11171576 1999 VP115.77 LDinbound
DateTfc.Time
18 Oct. '17Rept. Line
19 Oct. '17Rept. Line
20 Oct. '17Rept. Line
21 Oct. '17Rept. Line
22 Oct. '17Rept. Line
23 Oct. '17 Line
24 Oct. '17 Line

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

2017 UU1   -   outbound
Approximate diameter14 meters (H=26.856)
Closest Earth approach1.97 LD at 2357 UT on 16 Oct. 2017
Inside Earth SOI15 to 18 Oct. 2017
Inside ten LD of Earth9 to 24 Oct. 2017
Closest Moon approach2.21 LD at 1310 UT on 16 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 83 observations spanning one day
Optical observation  
  • reported from 15 observing codes during 23.849 hours: 104, 160, 246, 470, 585, 587, 926, G34, G96, H36, I52, J04, K63, K88, W25
  • designation assigned to Mt. Lemmon Survey observation at 0945 UT 18 Oct. 2017
  • last observed at 0936 UT on 19 Oct. 2017 by Tenagra II Obs.
Links  
2017 UT1   -     departed
Approximate diameter11 meters (H=27.458)
Closest Earth approach2.71 LD at 0808 UT on 14 Oct. 2017
Inside ten LD of Earth8 to 19 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 25 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 2.0955 days: 734, 926, G96, H21, I52, J04
  • designation assigned to Mt. Lemmon Survey observation at 0941 UT 17 Oct. 2017
  • last observed at 1158 UT on 19 Oct. 2017 by Tenagra II Obs.
Links  
2017 UQ1   -     departed
Approximate diameter23 meters (H=25.844)
Closest Earth approach5.81 LD at 1816 UT on 13 Oct. 2017
Inside ten LD of Earth12 to 15 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 18 observations spanning one day
Optical observation  
  • reported from 5 observing codes during 1.6116 days: 291, 474, G96, I52, J04
  • designation assigned to Mt. Lemmon Survey observation at 0743 UT 17 Oct. 2017
  • last observed at 2224 UT on 18 Oct. 2017 by ESA Optical Ground Station
Links  
2017 UP1   -     departed
Approximate diameter15 meters (H=26.811)
Closest Earth approach6.19 LD at 0923 UT on 12 Oct. 2017
Inside ten LD of Earth9 to 15 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 22 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 2.0536 days: 291, 474, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0712 UT 17 Oct. 2017
  • last observed at 0829 UT on 19 Oct. 2017 by the Mt. Lemmon Survey
Links  
2017 UM1   -   passing
Approximate diameter25 meters (H=25.645)
Closest Earth approach6.95 LD at 1747 UT on 21 Oct. 2017
Inside ten LD of Earth19 to 23 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 21 Oct. 2017 UTC
based on 43 observations spanning 4 days
Optical observation  
  • reported from 11 observing codes during 4.1749 days: 104, 246, 474, 703, 926, G96, H21, H36, I52, J04, K88
  • designation assigned to Mt. Lemmon Survey observation at 0538 UT 17 Oct. 2017
  • last observed at 0950 UT on 21 Oct. 2017 by Mt. John Obs.
Links  
2017 UK1   -     departed
Approximate diameter14 meters (H=26.957)
Closest Earth approach6.54 LD at 0055 UT on 11 Oct. 2017
Inside ten LD of Earth6 to 15 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 17 observations spanning 3 days
Optical observation  
  • reported from 5 observing codes during 3.0923 days: 291, 926, G96, I52, J04
  • designation assigned to Mt. Lemmon Survey observation at 0845 UT 16 Oct. 2017
  • last observed at 1058 UT on 19 Oct. 2017 by the Spacewatch 1.8m telescope
Notesrisk
Links  
2017 UH1   -   passing
Approximate diameter21 meters (H=25.988)
Closest Earth approach4.94 LD at 0708 UT on 21 Oct. 2017
Inside ten LD of Earth19 to 23 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 39 observations spanning 3 days
Optical observation  
  • reported from 11 observing codes during 3.0016 days: 104, 246, 587, 703, 926, F51, G96, H21, I52, K63, W34
  • designation assigned to Mt. Lemmon Survey observation at 0745 UT 16 Oct. 2017
  • last observed at 0747 UT on 19 Oct. 2017 by the Catalina Sky Survey
Links  
2017 UE1   -     departed
Approximate diameter19 meters (H=26.26)
Closest Earth approach9.64 LD at 2013 UT on 5 Oct. 2017 - Note: JPL reports an approach uncertainty of +/- 21 minutes
Inside ten LD of Earth4 to 6 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 18 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 2.0295 days: 291, G96, H21, I52
  • designation assigned to Mt. Lemmon Survey observation at 0643 UT 16 Oct. 2017
  • last observed at 0726 UT on 18 Oct. 2017 by the Spacewatch 1.8m telescope
Links  
2017 UU   -     departed
Approximate diameter19 meters (H=26.3)
Closest Earth approach8.81 LD at 0710 UT on 14 Oct. 2017
Inside ten LD of Earth12 to 16 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 30 observations spanning one day
Optical observation  
  • reported from 9 observing codes during 1.6739 days: 104, 246, 703, E23, H21, H36, I52, K63, K88
  • designation assigned to Catalina Sky Survey observation at 0702 UT 17 Oct. 2017
  • last observed at 2312 UT on 18 Oct. 2017 by Pascoli Obs.
Links  
2017 US   -   inbound
Approximate diameter23 meters (H=25.844)
Closest Earth approach7.46 LD at 2053 UT on 22 Oct. 2017
Inside ten LD of Earth15 to 30 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 20 Oct. 2017 UTC
based on 74 observations spanning 3 days
Optical observation  
  • reported from 14 observing codes during 3.0811 days: 104, 160, 204, 246, 585, 587, 703, G96, I52, J04, K63, K88, L01, W25
  • designation assigned to Catalina Sky Survey observation at 0816 UT 16 Oct. 2017
  • last observed at 1013 UT on 19 Oct. 2017 by the Catalina Sky Survey
Notesrisk
Links  
2017 UR   -     departed
Approximate diameter36 meters (H=24.847)
Closest Earth approach4.76 LD at 1135 UT on 15 Oct. 2017
Inside ten LD of Earth11 to 18 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Oct. 2017 UTC
based on 105 observations spanning 2 days
Optical observation  
  • reported from 23 observing codes during 2.5463 days: 046, 104, 113, 160, 204, 246, 585, 587, 703, 718, 926, A17, C77, G34, G96, I52, J95, K51, K63, K88, L04, Q62, W25
  • designation assigned to Catalina Sky Survey observation at 0742 UT 16 Oct. 2017
  • last observed at 2048 UT on 18 Oct. 2017 by KLENOT
Links  
2017 UJ   -   outbound
Approximate diameter26 meters (H=25.592)
Closest Earth approach2.76 LD at 0627 UT on 19 Oct. 2017
Inside ten LD of Earth15 to 22 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Oct. 2017 UTC
based on 74 observations spanning 3 days
Optical observation  
  • reported from 16 observing codes during 2.9414 days: 104, 160, 204, 246, 585, 718, 926, G34, K51, K63, K88, L01, L04, T08, W25, W34
  • designation assigned to ATLAS Mauna Loa observation at 1113 UT 16 Oct. 2017
  • last observed at 0948 UT on 19 Oct. 2017 by Tenagra II Obs.
Links  
2017 UG   -   outbound
Approximate diameter11 meters (H=27.536)
Closest Earth approach4.27 LD at 1004 UT on 20 Oct. 2017
Inside ten LD of Earth16 to 24 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 20 Oct. 2017 UTC
based on 27 observations spanning 4 days
Optical observation  
  • reported from 5 observing codes during 3.8209 days: 246, 926, G96, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0649 UT 16 Oct. 2017
  • last observed at 0231 UT on 20 Oct. 2017 by Tenagra II Obs.
Links  
2017 UF   -     departed intruder
Approximate diameter9 meters (H=27.881)
Closest Earth approach0.99 LD at 0322 UT on 15 Oct. 2017
Inside Earth-Moon system0246-0359 UT on 15 Oct. 2017
Inside Earth SOI14 to 15 Oct. 2017
Inside ten LD of Earth13 to 17 Oct. 2017
Closest Moon approach1.83 LD at 0111 UT on 15 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Oct. 2017 UTC
based on 26 observations spanning 3 days
Optical observation  
  • reported from 6 observing codes during 2.9981 days: 246, G96, H21, I52, J04, K63
  • designation assigned to Mt. Lemmon Survey observation at 0615 UT 16 Oct. 2017
  • last observed at 0612 UT on 19 Oct. 2017 by ARO Westfield
Notesrisk
Links  
2017 UE   -     departed
Approximate diameter14 meters (H=26.886)
Closest Earth approach4.41 LD at 1035 UT on 13 Oct. 2017
Inside ten LD of Earth8 to 18 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 21 Oct. 2017 UTC
based on 35 observations spanning 4 days
Optical observation  
  • reported from 9 observing codes during 3.9612 days: 246, 474, 703, 926, I52, J95, K63, K88, W25
  • designation assigned to Catalina Sky Survey observation at 0502 UT 16 Oct. 2017
  • last observed at 0406 UT on 20 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 UD   -     departed
Approximate diameter25 meters (H=25.625)
Closest Earth approach3.91 LD at 1045 UT on 14 Oct. 2017
Inside ten LD of Earth11 to 17 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Oct. 2017 UTC
based on 52 observations spanning 5 days
Optical observation  
  • reported from 9 observing codes during 5.0833 days: 104, 113, 160, 246, G96, I52, K51, K63, K88
  • designation assigned to Mt. Lemmon Survey observation at 0501 UT 16 Oct. 2017
  • last observed at 0701 UT on 21 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 UA   -   outbound
Approximate diameter7 meters (H=28.424)
Closest Earth approach1.19 LD at 1515 UT on 17 Oct. 2017
Inside Earth SOI16 to 18 Oct. 2017
Inside ten LD of Earth12 to 23 Oct. 2017
Closest Moon approach1.67 LD at 0411 UT on 18 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 18 Oct. 2017 UTC
based on 37 observations spanning one day
Optical observation  
  • reported from 5 observing codes during 1.1046 days: 104, 926, G96, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0611 UT 16 Oct. 2017
  • last observed at 0842 UT on 17 Oct. 2017 by Tenagra II Obs.
Links  
2017 TJ6   -     departed
Approximate diameter11 meters (H=27.359)
Closest Earth approach7.08 LD at 0759 UT on 11 Oct. 2017
Inside ten LD of Earth6 to 16 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 20 Oct. 2017 UTC
based on 21 observations spanning 4 days
Optical observation  
  • reported from 3 observing codes during 4.1131 days: 104, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0554 UT 15 Oct. 2017
  • last observed at 0837 UT on 19 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 TD6   -   outbound intruder
Approximate diameter13 meters (H=27.162)
Closest Earth approach0.50 LD at 1852 UT on 19 Oct. 2017
Inside Earth-Moon system0840 on 19 Oct. until 0504 UT on 20 Oct. 2017
Inside Earth SOI18 to 20 Oct. 2017
Inside ten LD of Earth14 to 24 Oct. 2017
Closest Moon approach0.29 LD at 0704 UT on 20 Oct. 2017
Inside one LD of Moon2005 on 19 Oct. until 1801 UT on 20 Oct. 2017
Data based onJPL SSD orbit solution #5 downloaded from JPL on 21 Oct. 2017 UTC
based on 93 observations spanning 8 days
Optical observation  
  • reported from 17 observing codes during 8.1160 days: 104, 160, 204, 246, 474, 691, 703, 850, A17, F51, G96, I52, J04, K88, L04, Q62, T08
  • designation assigned to Pan-STARRS 1 observation at 0952 UT 11 Oct. 2017
  • last observed at 1239 UT on 19 Oct. 2017 by Mt. John Obs.
Notesrisk
Links  
2017 TA6   -   outbound
Approximate diameter16 meters (H=26.67)
Closest Earth approach6.64 LD at 2243 UT on 19 Oct. 2017
Inside ten LD of Earth12 to 27 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Oct. 2017 UTC
based on 34 observations spanning 4 days
Optical observation  
  • reported from 8 observing codes during 4.0724 days: 104, 204, 926, G96, I52, J04, J95, K88
  • designation assigned to Mt. Lemmon Survey observation at 1028 UT 15 Oct. 2017
  • last observed at 1213 UT on 19 Oct. 2017 by Tenagra II Obs.
Notesrisk
Links  
2017 TZ5   -     departed
Approximate diameter15 meters (H=26.793)
Closest Earth approach6.97 LD at 1954 UT on 12 Oct. 2017
Inside ten LD of Earth9 to 16 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Oct. 2017 UTC
based on 33 observations spanning 4 days
Optical observation  
  • reported from 6 observing codes during 4.0236 days: 474, 926, F51, G96, I52, K88
  • first observed at 0813 UT on 15 Oct. 2017 by the Mt. Lemmon Survey
  • designation assigned to Mt. Lemmon Survey observation at 0959 UT 15 Oct. 2017
  • last observed at 0847 UT on 19 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 TY5   -     departed
Approximate diameter19 meters (H=26.211)
Closest Earth approach3.78 LD at 2222 UT on 10 Oct. 2017
Inside ten LD of Earth5 to 16 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 20 Oct. 2017 UTC
based on 25 observations spanning 4 days
Optical observation  
  • reported from 7 observing codes during 4.1042 days: 104, 926, G96, H36, I52, K63, K88
  • designation assigned to Mt. Lemmon Survey observation at 0913 UT 15 Oct. 2017
  • last observed at 1143 UT on 19 Oct. 2017 by Tenagra II Obs.
Links  
2017 TX5   -   outbound
Approximate diameter22 meters (H=25.914)
Closest Earth approach4.56 LD at 1624 UT on 18 Oct. 2017
Inside ten LD of Earth14 to 22 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Oct. 2017 UTC
based on 58 observations spanning 4 days
Optical observation  
  • reported from 12 observing codes during 4.0890 days: 104, 160, 246, 703, 926, A17, G96, I52, J04, J95, K63, K88
  • designation assigned to Mt. Lemmon Survey observation at 0813 UT 15 Oct. 2017
  • last observed at 1021 UT on 19 Oct. 2017 by Tenagra II Obs.
Links  
2017 TW5   -     departed
Approximate diameter13 meters (H=27.059)
Closest Earth approach3.08 LD at 1936 UT on 17 Oct. 2017
Inside ten LD of Earth15 to 20 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 18 Oct. 2017 UTC
based on 23 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 1.7751 days: 104, 926, G96, I52, J95, K63
  • designation assigned to Mt. Lemmon Survey observation at 0735 UT 15 Oct. 2017
  • last observed at 0212 UT on 17 Oct. 2017 by Great Shefford Obs.
Notesrisk
Links  
2017 TV5   -   inbound
Approximate diameter14 meters (H=26.846)
Closest Earth approach3.37 LD at 0740 UT on 22 Oct. 2017
Inside ten LD of Earth18 to 26 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 21 Oct. 2017 UTC
based on 54 observations spanning 5 days
Optical observation  
  • reported from 8 observing codes during 5.0778 days: 246, 691, 703, 926, G96, I52, J04, K88
  • designation assigned to Mt. Lemmon Survey observation at 0707 UT 15 Oct. 2017
  • last observed at 0859 UT on 20 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 TU5   -     departed
Approximate diameter11 meters (H=27.418)
Closest Earth approach6.84 LD at 1029 UT on 13 Oct. 2017
Inside ten LD of Earth9 to 17 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Oct. 2017 UTC
based on 26 observations spanning 4 days
Optical observation  
  • reported from 5 observing codes during 4.1804 days: 104, 474, G96, I52, J95
  • first observed at 0522 UT on 15 Oct. 2017 by the Mt. Lemmon Survey
  • designation assigned to Mt. Lemmon Survey observation at 0628 UT 15 Oct. 2017
  • last observed at 0941 UT on 19 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 TQ5   -   inbound
Approximate diameter11 meters (H=27.53)
Closest Earth approach5.50 LD at 1403 UT on 22 Oct. 2017
Inside ten LD of Earth16 to 28 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 19 Oct. 2017 UTC
based on 18 observations spanning 4 days
Optical observation  
  • reported from 4 observing codes during 4.6664 days: 926, G96, I52, J04
  • designation assigned to Mt. Lemmon Survey observation at 0422 UT 14 Oct. 2017
  • last observed at 2022 UT on 18 Oct. 2017 by ESA Optical Ground Station
Links  
2017 TH5   -     departed intruder
Approximate diameter8 meters (H=28.198)
Closest Earth approach0.26 LD at 1715 UT on 16 Oct. 2017
Inside Earth-Moon system0832 on 16 Oct. until 0157 UT on 17 Oct. 2017
Inside Earth SOI15 to 17 Oct. 2017
Inside ten LD of Earth12 to 20 Oct. 2017
Closest Moon approach0.55 LD at 0204 UT on 17 Oct. 2017
Inside one LD of Moon1829 on 16 Oct. until 0939 UT on 17 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 17 Oct. 2017 UTC
based on 81 observations spanning one day
Optical observation  
  • reported from 15 observing codes during 1.2420 days: 046, 104, 151, 246, 474, 718, 926, A17, C77, G96, I52, J04, J95, K30, K88
  • designation assigned to Mt. Lemmon Survey observation at 0522 UT 15 Oct. 2017
  • last observed at 1111 UT on 16 Oct. 2017 by Mt. John Obs.
Links  
2017 TF5   -     departed intruder
Approximate diameter39 meters (H=24.692)
Closest Earth approach0.73 LD at 0739 UT on 10 Oct. 2017 - Note: JPL reports an approach uncertainty of +/- 20 minutes
Inside Earth-Moon system0428-1051 UT on 10 Oct. 2017
Inside Earth SOI9 to 10 Oct. 2017
Inside ten LD of Earth8 to 12 Oct. 2017
Closest Moon approach1.34 LD at 0937 UT on 10 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 16 Oct. 2017 UTC
based on 27 observations spanning one day
Optical observation  
  • reported from 5 observing codes during 1.4649 days: 104, 246, G96, J04, K88
  • designation assigned to Mt. Lemmon Survey observation at 0929 UT 14 Oct. 2017
  • last observed at 2039 UT on 15 Oct. 2017 by ESA Optical Ground Station
Links  
2017 TE5   -   outbound
Approximate diameter22 meters (H=25.915)
Closest Earth approach1.34 LD at 1108 UT on 17 Oct. 2017
Inside Earth SOI16 to 18 Oct. 2017
Inside ten LD of Earth13 to 21 Oct. 2017
Closest Moon approach1.85 LD at 1857 UT on 17 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 19 Oct. 2017 UTC
based on 83 observations spanning 3 days
Optical observation  
  • reported from 14 observing codes during 3.5645 days: 046, 104, 160, 246, 474, 703, 926, B15, G34, G96, J04, J95, K88, L04
  • designation assigned to Catalina Sky Survey observation at 0542 UT 14 Oct. 2017
  • last observed at 1915 UT on 17 Oct. 2017 by ROASTERR-1
Links  
2017 TA5   -     departed
Approximate diameter12 meters (H=27.247)
Closest Earth approach7.48 LD at 1401 UT on 9 Oct. 2017
Inside ten LD of Earth6 to 12 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 16 Oct. 2017 UTC
based on 17 observations spanning 2 days
Optical observation  
  • reported from 3 observing codes during 2.0424 days: 926, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0545 UT 13 Oct. 2017
  • last observed at 0646 UT on 15 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Notesrisk
Links  
2017 TX4   -     departed
Approximate diameter18 meters (H=26.318)
Closest Earth approach7.23 LD at 1649 UT on 8 Oct. 2017
Inside ten LD of Earth5 to 11 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 16 Oct. 2017 UTC
based on 24 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 1.7881 days: 926, G96, J95, K88
  • designation assigned to Mt. Lemmon Survey observation at 1118 UT 12 Oct. 2017
  • last observed at 0613 UT on 14 Oct. 2017 by the Mt. Lemmon Survey
Links  
2017 TT4   -     departed
Approximate diameter13 meters (H=27.152)
Closest Earth approach2.32 LD at 1632 UT on 9 Oct. 2017
Inside Earth SOIduring 9 Oct. 2017
Inside ten LD of Earth6 to 12 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 18 Oct. 2017 UTC
based on 29 observations spanning 5 days
Optical observation  
  • reported from 4 observing codes during 4.8538 days: G96, H01, H21, J95
  • designation assigned to Mt. Lemmon Survey observation at 0922 UT 12 Oct. 2017
  • last observed at 0552 UT on 17 Oct. 2017 by ARO Westfield
Links  
2017 TM4   -     departed
Approximate diameter10 meters (H=27.72)
Closest Earth approach1.92 LD at 1609 UT on 6 Oct. 2017
Inside Earth SOI5 to 7 Oct. 2017
Inside ten LD of Earth1 to 12 Oct. 2017
Closest Moon approach1.85 LD at 0042 UT on 7 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Oct. 2017 UTC
based on 35 observations spanning 8 days
Optical observation  
  • reported from 4 observing codes during 8.0053 days: 926, G96, H01, H21
  • designation assigned to Mt. Lemmon Survey observation at 0743 UT 11 Oct. 2017
  • last observed at 0751 UT on 19 Oct. 2017 by ARO Westfield
Links  
2017 TK4   -   outbound
Approximate diameter10 meters (H=27.629)
Closest Earth approach4.18 LD at 2247 UT on 15 Oct. 2017
Inside ten LD of Earth6 to 25 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 21 Oct. 2017 UTC
based on 40 observations spanning 5 days
Optical observation  
  • reported from 9 observing codes during 5.1343 days: 104, 151, 246, 587, 926, G96, I52, J95, K88
  • designation assigned to Mt. Lemmon Survey observation at 0334 UT 14 Oct. 2017
  • last observed at 0648 UT on 19 Oct. 2017 by Tenagra II Obs.
Links  
2017 TH4   -     departed
Approximate diameter45 meters (H=24.373)
Closest Earth approach6.65 LD at 2148 UT on 10 Oct. 2017
Inside ten LD of Earth8 to 13 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 21 Oct. 2017 UTC
based on 96 observations spanning 6 days
Optical observation  
  • reported from 19 observing codes during 6.0382 days: 046, 104, 160, 203, 204, 246, 474, 587, 703, 926, A17, C43, G96, H06, I52, K63, K88, Q62, Y00
  • designation assigned to Catalina Sky Survey observation at 0855 UT 13 Oct. 2017
  • last observed at 0950 UT on 19 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 TG4   -   passing
Approximate diameter49 meters (H=24.195)
Closest Earth approach4.80 LD at 1506 UT on 21 Oct. 2017
Inside ten LD of Earth18 to 25 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Oct. 2017 UTC
based on 102 observations spanning 6 days
Optical observation  
  • reported from 19 observing codes during 6.5029 days: 160, 203, 204, 246, 587, 691, 703, 718, B04, C43, C77, G96, I52, K38, K63, K88, L04, Q62, W34
  • designation assigned to Catalina Sky Survey observation at 0826 UT 13 Oct. 2017
  • last observed at 2030 UT on 19 Oct. 2017 by KLENOT
Links  
2017 TE4   -     departed
Approximate diameter15 meters (H=26.807)
Closest Earth approach7.10 LD at 0859 UT on 8 Oct. 2017
Inside ten LD of Earth3 to 13 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 15 Oct. 2017 UTC
based on 26 observations spanning 4 days
Optical observation  
  • reported from 4 observing codes during 4.0716 days: 703, G96, I52, K88
  • designation assigned to Catalina Sky Survey observation at 0853 UT 11 Oct. 2017
  • last observed at 1036 UT on 15 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 TY3   -     departed
Approximate diameter29 meters (H=25.337)
Closest Earth approach4.27 LD at 0714 UT on 3 Oct. 2017 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth30 Sept. until 5 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Oct. 2017 UTC
based on 28 observations spanning 8 days
Optical observation  
  • reported from 6 observing codes during 7.7862 days: 291, 691, 926, F51, G96, H21
  • designation assigned to Pan-STARRS 1 observation at 0946 UT 11 Oct. 2017
  • last observed at 0438 UT on 19 Oct. 2017 by ARO Westfield
Links  
2017 TV3   -     departed
Approximate diameter21 meters (H=26.019)
Closest Earth approach6.75 LD at 1625 UT on 8 Oct. 2017
Inside ten LD of Earth3 to 13 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 15 Oct. 2017 UTC
based on 58 observations spanning 3 days
Optical observation  
  • reported from 15 observing codes during 3.4506 days: 104, 160, 203, 204, 246, 587, 703, 850, 926, C77, F51, J95, K63, K88, T08
  • first observed at 0955 UT on 11 Oct. 2017 by Pan-STARRS 1
  • designation assigned to ATLAS Mauna Loa observation at 1027 UT 11 Oct. 2017
  • last observed at 2044 UT on 14 Oct. 2017 by KLENOT
Links  
2017 TU3   -     departed
Approximate diameter41 meters (H=24.611)
Closest Earth approach8.12 LD at 0531 UT on 17 Oct. 2017
Inside ten LD of Earth15 to 19 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Oct. 2017 UTC
based on 32 observations spanning 9 days
Optical observation  
  • reported from 7 observing codes during 9.0192 days: 246, 587, 703, 926, F51, K63, K88
  • designation assigned to Pan-STARRS 1 observation at 1201 UT 10 Oct. 2017
  • last observed at 1228 UT on 19 Oct. 2017 by Tenagra II Obs.
Links  
2017 TT3   -     departed
Approximate diameter25 meters (H=25.687)
Closest Earth approach8.22 LD at 0913 UT on 29 Sept. 2017
Inside ten LD of Earth26 Sept. until 2 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Oct. 2017 UTC
based on 26 observations spanning 9 days
Optical observation  
  • reported from 5 observing codes during 9.4818 days: 291, 691, 926, F51, J04
  • designation assigned to Pan-STARRS 1 observation at 1030 UT 10 Oct. 2017
  • last observed at 2204 UT on 19 Oct. 2017 by ESA Optical Ground Station
Notesrisk
Links  
2017 TR2   -     departed
Approximate diameter101 meters (H=22.62)
Closest Earth approach4.33 LD at 0939 UT on 27 Aug. 2017 - Note: JPL indicates an approach uncertainty greater than 10 days
Inside ten LD of Earth18 Aug. until 5 Sept. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 14 Oct. 2017 UTC
based on 5 observations spanning one day
Optical observation  
  • reported from one observing code during 17.282 hours: C51
  • designation assigned to WISE observation at 1853 UT 4 Oct. 2017
  • last observed at 1210 UT on 5 Oct. 2017 by WISE
Links  
2017 TQ2   -     departed intruder
Approximate diameter5 meters (H=29.373)
Closest Earth approach0.27 LD at 1215 UT on 30 Sept. 2017
Inside Earth-Moon system0511-1919 UT on 30 Sept. 2017
Inside Earth SOI29 Sept. until 1 Oct. 2017
Inside ten LD of Earth27 Sept. until 3 Oct. 2017
Closest Moon approach0.86 LD at 1441 UT on 30 Sept. 2017
Inside one LD of Moon1050-1834 UT on 30 Sept. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 14 Oct. 2017 UTC
based on 11 observations spanning one day
Optical observation  
  • reported from 2 observing codes during 18.890 hours: G96, H01
  • designation assigned to Mt. Lemmon Survey observation at 0814 UT 1 Oct. 2017
  • last observed at 0307 UT on 2 Oct. 2017 by Magdalena Ridge Obs.
Links  
2017 TL2   -     departed
Approximate diameter13 meters (H=27.113)
Closest Earth approach6.27 LD at 2007 UT on 7 Oct. 2017
Inside ten LD of Earth4 to 11 Oct. 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 18 Oct. 2017 UTC
based on 24 observations spanning 7 days
Optical observation  
  • reported from 5 observing codes during 7.0780 days: 703, 926, F51, G96, H21
  • designation assigned to Catalina Sky Survey observation at 0643 UT 10 Oct. 2017
  • last observed at 0835 UT on 17 Oct. 2017 by ARO Westfield
Links  
2017 TK2   -     departed
Approximate diameter24 meters (H=25.742)
Closest Earth approach4.93 LD at 0608 UT on 13 Oct. 2017
Inside ten LD of Earth9 to 16 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 13 Oct. 2017 UTC
based on 39 observations spanning 2 days
Optical observation  
  • reported from 11 observing codes during 2.0115 days: 107, 160, 204, 587, 703, 926, F51, H01, J22, J95, T08
  • designation assigned to Catalina Sky Survey observation at 0642 UT 10 Oct. 2017
  • last observed at 0659 UT on 12 Oct. 2017 by Tenagra II Obs.
Links  
2017 TH2   -     departed
Approximate diameter6 meters (H=28.715)
Closest Earth approach2.14 LD at 0744 UT on 9 Oct. 2017
Inside Earth SOI8 to 10 Oct. 2017
Inside ten LD of Earth30 Sept. until 18 Oct. 2017
Closest Moon approach2.23 LD at 1750 UT on 9 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 13 Oct. 2017 UTC
based on 20 observations spanning 2 days
Optical observation  
  • reported from 5 observing codes during 1.7556 days: 204, 587, 703, H01, J95
  • designation assigned to Catalina Sky Survey observation at 0613 UT 10 Oct. 2017
  • last observed at 0021 UT on 12 Oct. 2017 by Great Shefford Obs.
Links  
2017 TV1   -     departed
Approximate diameter19 meters (H=26.206)
Closest Earth approach5.59 LD at 0639 UT on 14 Oct. 2017
Inside ten LD of Earth10 to 17 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 17 Oct. 2017 UTC
based on 29 observations spanning 3 days
Optical observation  
  • reported from 7 observing codes during 2.7919 days: 160, 204, 703, 926, F51, H01, J95
  • designation assigned to Catalina Sky Survey observation at 1003 UT 10 Oct. 2017
  • last observed at 0504 UT on 13 Oct. 2017 by Tenagra II Obs.
Links  
2017 TU1   -     departed
Approximate diameter20 meters (H=26.17)
Closest Earth approach5.21 LD at 1219 UT on 13 Oct. 2017
Inside ten LD of Earth9 to 17 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 14 Oct. 2017 UTC
based on 40 observations spanning 2 days
Optical observation  
  • reported from 10 observing codes during 2.5792 days: 107, 160, 203, 204, 703, 926, C77, H01, J95, Z80
  • designation assigned to Catalina Sky Survey observation at 0750 UT 10 Oct. 2017
  • last observed at 2144 UT on 12 Oct. 2017 by GiaGa Obs.
Notesrisk
Links  
2017 TT1   -     departed
Approximate diameter12 meters (H=27.182)
Closest Earth approach2.52 LD at 0312 UT on 13 Oct. 2017
Inside ten LD of Earth9 to 17 Oct. 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 17 Oct. 2017 UTC
based on 25 observations spanning 3 days
Optical observation  
  • reported from 4 observing codes during 3.1411 days: 587, 703, 926, J95
  • designation assigned to Catalina Sky Survey observation at 0455 UT 10 Oct. 2017
  • last observed at 0818 UT on 13 Oct. 2017 by Tenagra II Obs.
Links  
2017 TS1   -     departed
Approximate diameter41 meters (H=24.574)
Closest Earth approach7.40 LD at 0417 UT on 4 Oct. 2017
Inside ten LD of Earth1 to 7 Oct. 2017
Data based onJPL SSD orbit solution #7 downloaded from JPL on 20 Oct. 2017 UTC
based on 75 observations spanning 10 days
Optical observation  
  • reported from 13 observing codes during 10.1274 days: 160, 204, 585, 703, 926, A17, G96, H01, H36, I52, J95, K63, K88
  • designation assigned to Catalina Sky Survey observation at 0655 UT 9 Oct. 2017
  • last observed at 0959 UT on 19 Oct. 2017 by Steward Obs. Mt. Lemmon Station
Links  
2017 TE1   -     departed
Approximate diameter31 meters (H=25.193)
Closest Earth approach4.58 LD at 1514 UT on 28 Sept. 2017
Inside ten LD of Earth24 Sept. until 3 Oct. 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Oct. 2017 UTC
based on 23 observations spanning 18 days
Optical observation  
  • reported from 5 observing codes during 17.9497 days: 703, 926, G96, H01, H21
  • designation assigned to Catalina Sky Survey observation at 0955 UT 1 Oct. 2017
  • last observed at 0842 UT on 19 Oct. 2017 by ARO Westfield
Links  
2017 SE33   -     departed
Approximate diameter10 meters (H=27.698)
Closest Earth approach7.20 LD at 0011 UT on 19 Sept. 2017 - Note: JPL reports an approach uncertainty of +/- 35 minutes
Inside ten LD of Earth15 to 22 Sept. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 14 Oct. 2017 UTC
based on 6 observations spanning one day
Optical observation  
  • reported from 2 observing codes during 1.1022 days: 568, F51
  • designation assigned to Pan-STARRS 1 observation at 0953 UT 24 Sept. 2017
  • last observed at 1220 UT on 25 Sept. 2017 by Marco Micheli via Mauna Kea
Notesrisk
Links  
2017 SZ32   -     departed intruder
Approximate diameter5 meters (H=29.234)
Closest Earth approach0.53 LD at 1548 UT on 20 Sept. 2017
Inside Earth-Moon system1145-1951 UT on 20 Sept. 2017
Inside Earth SOI20 to 21 Sept. 2017
Inside ten LD of Earth18 to 22 Sept. 2017
Closest Moon approach0.50 LD at 1109 UT on 20 Sept. 2017
Inside one LD of Moon0700-1519 UT on 20 Sept. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 14 Oct. 2017 UTC
based on 15 observations spanning one day
Optical observation  
  • reported from 4 observing codes during 20.714 hours: 568, 926, F51, H21
  • designation assigned to Pan-STARRS 1 observation at 1106 UT 21 Sept. 2017
  • last observed at 0749 UT on 22 Sept. 2017 by Marco Micheli via Mauna Kea
Links  
2017 SP21   -     departed
Approximate diameter10 meters (H=27.695)
Closest Earth approach3.31 LD at 0034 UT on 30 Sept. 2017
Inside ten LD of Earth24 Sept. until 5 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 8 Oct. 2017 UTC
based on 31 observations spanning 2 days
Optical observation  
  • reported from 5 observing codes during 1.7386 days: 595, 926, G96, H21, K88
  • designation assigned to Mt. Lemmon Survey observation at 1114 UT 30 Sept. 2017
  • last observed at 0457 UT on 2 Oct. 2017 by Tenagra II Obs.
Links  
2017 SN21   -     departed
Approximate diameter21 meters (H=26.002)
Closest Earth approach8.96 LD at 1556 UT on 10 Oct. 2017
Inside ten LD of Earth8 to 13 Oct. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 8 Oct. 2017 UTC
based on 37 observations spanning 6 days
Optical observation  
  • reported from 4 observing codes during 5.6040 days: 926, G96, H21, J95
  • designation assigned to Mt. Lemmon Survey observation at 0952 UT 30 Sept. 2017
  • last observed at 0022 UT on 6 Oct. 2017 by Great Shefford Obs.
Links  
2017 SM21   -     departed
Approximate diameter18 meters (H=26.341)
Closest Earth approach6.01 LD at 1518 UT on 25 Sept. 2017
Inside ten LD of Earth22 to 29 Sept. 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 8 Oct. 2017 UTC
based on 14 observations spanning 3 days
Optical observation  
  • reported from 4 observing codes during 2.8453 days: 291, 695, 926, F51
  • first observed at 0702 UT on 30 Sept. 2017 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 0736 UT 30 Sept. 2017
  • last observed at 0319 UT on 3 Oct. 2017 by Tenagra II Obs.
Links  
2017 RV2   -     departed
Approximate diameter19 meters (H=26.204)
Closest Earth approach2.17 LD at 0223 UT on 12 Sept. 2017
Inside Earth SOI11 to 12 Sept. 2017
Inside ten LD of Earth5 to 18 Sept. 2017
Closest Moon approach2.76 LD at 0945 UT on 12 Sept. 2017
Data based onJPL SSD orbit solution #10 downloaded from JPL on 18 Oct. 2017 UTC
based on 133 observations spanning 33 days
Optical observation  
  • reported from 23 observing codes during 32.9568 days: 204, 291, 585, 691, 703, 850, A17, B49, E23, F51, G34, H21, H45, I52, J69, J95, K88, L04, Q62, T05, W25, W34, Y00
  • designation assigned to ATLAS Haleakala observation at 1026 UT 14 Sept. 2017
  • last observed at 0924 UT on 17 Oct. 2017 by the Spacewatch 1.8m telescope
Notesrisk
Links  
2017 RS2   -     departed
Approximate diameter18 meters (H=26.384)
Closest Earth approach6.44 LD at 0039 UT on 12 Sept. 2017
Inside ten LD of Earth3 to 19 Sept. 2017
Data based onJPL SSD orbit solution #12 downloaded from JPL on 20 Oct. 2017 UTC
based on 75 observations spanning 35 days
Optical observation  
  • reported from 13 observing codes during 34.8936 days: 291, 807, 850, E23, H21, I52, J95, K88, L04, Q62, T05, T08, W34
  • designation assigned to ATLAS Haleakala observation at 0828 UT 14 Sept. 2017
  • last observed at 0555 UT on 19 Oct. 2017 by ARO Westfield
Links  
2017 NB7   -     departed
Approximate diameter74 meters (H=23.311)
Closest Earth approach6.87 LD at 1040 UT on 6 Aug. 2017
Inside ten LD of Earth1 to 11 Aug. 2017
Data based onJPL SSD orbit solution #6 downloaded from JPL on 17 Oct. 2017 UTC
based on 32 observations spanning 107 days
Optical observation  
  • reported from 7 observing codes during 107.1541 days: 104, 291, 691, F51, G96, I52, T05
  • designation assigned to Mt. Lemmon Survey observation at 0558 UT 1 July 2017
  • last observed at 0939 UT on 16 Oct. 2017 by the Spacewatch 1.8m telescope
Links  
2012 TC4   -     departed intruder
Approximate diameter15 meters (H=26.7)
Closest Earth approach0.13 LD at 0541 UT on 12 Oct. 2017
Inside Earth-Moon system1408 on 11 Oct. until 2114 UT on 12 Oct. 2017
Inside Earth SOI10 to 13 Oct. 2017
Inside ten LD of Earth5 to 18 Oct. 2017
Closest Moon approach0.72 LD at 1918 UT on 12 Oct. 2017
Inside one LD of Moon0712 on 12 Oct. until 0728 UT on 13 Oct. 2017
Data based onJPL SSD orbit solution #56 downloaded from JPL on 14 Oct. 2017 UTC
based on 728 observations spanning 2012-2017 including radar
Optical observation  
  • reported from 61 observing codes during 76.9147 days: 033, 073, 104, 108, 160, 198, 203, 204, 215, 309, 587, 595, 691, 695, 703, 807, 987, A13, A77, B18, B67, C47, C77, D29, F51, G34, G40, G58, G96, H01, H21, H36, I39, I89, J04, J15, J22, J27, J43, J69, J95, K19, K32, K33, K40, K63, K74, K78, K93, P93, Q62, T05, T08, T09, U69, V83, W34, W85, W87, Y00, Z80
  • first observed at 0554 UT on 27 July 2017 by Marco Micheli via Cerro Paranal
  • last observed at 0352 UT on 12 Oct. 2017 by Magdalena Ridge Obs.
Radar observation  
  • observed 6 times from one location during 2.0 days
  • first observed at 0730 UT on 9 Oct. 2017 by Goldstone DSS-14 70m antenna
  • last observed at 0730 UT on 11 Oct. 2017 by Goldstone DSS-14 70m antenna
Notesrisk, radar target, NHATS target
previous passage Oct. 2012 at 0.25 LD
Links  
436724 2011 UW158   -     distant
Approximate diameter355 meters (H=19.9)
Distance from Earth166.8 - 166.9 LD min-max during the observation period
Data based onJPL SSD orbit solution #137 downloaded from JPL on 12 Oct. 2017 UTC
based on 943 observations spanning 2011-2017 including radar
Optical observation  
  • reported from one observing code during 0.910 hours: F51
  • first observed at 0520 UT on 11 Oct. 2017 by Pan-STARRS 1
  • last observed at 0614 UT on 11 Oct. 2017 by Pan-STARRS 1
NotesNHATS target
previous observation Oct.-Dec. 2011, observation March-Dec. 2013, passage July 2015 at 6.40 LD, and observation April 2017
Links  
444584 2006 UK   -   approaching
Approximate diameter309 meters (H=20.2)
Closest Earth approach8.66 LD at 2108 UT on 17 Nov. 2017
Inside ten LD of Earth16 to 19 Nov. 2017
Data based onJPL SSD orbit solution #52 downloaded from JPL on 20 Oct. 2017 UTC
based on 174 observations spanning 2006-2017
Optical observation  
  • reported from 4 observing codes during 1.5665 days: 703, G96, K88, T08
  • first observed at 2206 UT on 17 Oct. 2017 by GINOP-KHK
  • last observed at 1142 UT on 19 Oct. 2017 by ATLAS Mauna Loa
Notesprevious observation May 2007, observation Sept. 2008, observation July 2009, observation June 2013, observation Oct. 2013, observation Sept. 2015, and observation May-June 2016
Links  
2005 TE49   -     departed
Approximate diameter15 meters (H=26.7)
Closest Earth approach8.47 LD at 1825 UT on 13 Oct. 2017 - Note: JPL reports an approach uncertainty of +/- 10.1167 hours
Inside ten LD of Earth11 to 15 Oct. 2017
Data based onJPL SSD orbit solution #7 downloaded from JPL on 6 Aug. 2017 UTC (dated 6 April 2017 local)
based on 7 observations spanning 3 days
Optical observation  
    none recent
NotesNHATS target
Links  
2003 UV11   -     distant
Approximate diameter426 meters (H=19.5)
Distance from Earth64.3 - 371.9 LD min-max during the observation period
Data based onJPL SSD orbit solution #60 downloaded from JPL on 21 Oct. 2017 UTC
based on 686 observations spanning 1996-2017 including radar
Optical observation  
  • reported from 8 observing codes during 47.5444 days: 073, 291, 703, C94, D29, H21, H45, T08
  • first observed at 0924 UT on 2 Sept. 2017 by ARO Westfield
  • last observed at 2228 UT on 19 Oct. 2017 by Bucharest Obs.
Notesprevious passage Oct. 2010 at 5.04 LD, observation July 2012, and observation Aug. 2016
Links  
171576 1999 VP11   -   inbound
Approximate diameter645 meters (H=18.6)
Closest Earth approach5.77 LD at 1101 UT on 22 Oct. 2017
Inside ten LD of Earth20 to 24 Oct. 2017
Data based onJPL SSD orbit solution #56 downloaded from JPL on 6 Aug. 2017 UTC (dated 6 April 2017 local)
based on 242 observations spanning 1999-2017
Optical observation  
    none recent
Notesprevious observation Sept.-Dec. 2007, observation Oct.-Dec. 2008, observation Dec. 2013, observation Nov.-March 2015, observation Dec.-Jan. 2016, and observation Nov.-Jan. 2017
Links  

Footnotes

Illustration of ten lunar distances.

1. Ten lunar distances:  A "lunar distance" (LD) is the average distance between Earth and Moon (about 384,400 km., the same as 238,855 miles or nearly ten [9.59] times around Earth's equator). Ten lunar distances has no special astronomical importance but is a useful arbitrary "bubble" within which to organize this reporting. An approach by a small Solar-System body starts to become interesting at less than four LD out from Earth as it encounters our planet's "Hill sphere" (distance indicated by the blue line in this illustration at about 3.9 LD). This is a region within which Earth's gravitational influence can change the orbits of passing objects. The Moon also has a Hill sphere, outlined here as a gray circle. (Earth and Moon are not shown to scale.) 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 very 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.