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Legend - object IDs plus links to more info

Data compiled at 2115 UTC on 24 March 2019 for 39 known objects during a period of seven days from 21 to 27 March 2019. Orange is for objects with a new JPL orbit solution (usually from new observation).

Chart
ID

Full ID
Period
Closest
Passage
Uncertainty

Status
BE12019 BE1120.26 LD  departed
CZ22019 CZ276.94 LD  departed
DB22019 DB232.86 LD  departed
DG12019 DG128.47 LD  departed
DG22019 DG2111.4 LD+/- 24 minutes  departed intruder
DH2019 DH22.88 LD  departed
DH12019 DH18.98 LD  departed
DJ12019 DJ17.96 LD  departed
DP2019 DP51.99 LD  departed
DS12019 DS152.14 LD  departed Moon buzzer
EA22019 EA20.80 LDoutbound intruder
EB22019 EB236.86 LD  departed
ED2019 ED15.90 LD+/- 2 minutes  departed
ED12019 ED142.18 LD  departed
EF2019 EF86.26 LD  departed
EF22019 EF212.59 LD  departed
EH2019 EH31.46 LD+/- one minute  departed
EK22019 EK24.7 LD+/- 10 minutesoutbound
EL22019 EL213.80 LD  departed
EM12019 EM176.98 LD  departed
EN2019 EN9.69 LDapproaching
EN22019 EN215.39 LD  departed intruder
EO22019 EO224.17 LD  departed
ER22019 ER28.88 LD+/- 2 minutesinbound
ES2019 ES11.62 LD  departed
ES22019 ES27.65 LDoutbound
EU12019 EU123.04 LD  departed
EW12019 EW125.88 LD  departed
EW22019 EW226.54 LD+/- 3 minutes  departed
EZ12019 EZ147.75 LD  departed
FA2019 FA6.49 LD  departed intruder
FB2019 FB11.86 LD  departed
FC2019 FC34.31 LD  departed
FD2019 FD13.86 LD  departed
FE2019 FE11.25 LD  departed
FF2019 FF3.14 LD+/- 5 minutesoutbound
GE12016 GE118.1 LD+/- 4.902 daysapproaching
LK2018 LK196.0 LD  distant
TG62018 TG622.88 LD  departed
DateTfc.Time
21 March '19Rept. Line
22 March '19Rept. Line
23 March '19Rept. Line
24 March '19Rept. Line
25 March '19Rept. Line
26 March '19 Line
27 March '19 Line

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

2019 FF   -   outbound
Approximate diameter19 meters (H=26.256)
Closest Earth approach3.14 LD at 1520 UTC on 23 March 2019 - Note: JPL reports an approach uncertainty of +/- 5 minutes
Inside ten LD of Earth18 to 28 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 21 March 2019 UTC
based on 23 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 1.6968 days: 204, 807, G96, H01, I52, V01
  • designation assigned to Mt. Lemmon Survey observation at 0827 UTC 18 March 2019
  • last observed at 0111 UTC on 20 March 2019 by Schiaparelli Obs.
NotesNHATS target
Links  
2019 FE   -     departed
Approximate diameter54 meters (H=23.972)
Closest Earth approach1.70 LD at 2330 UTC on 15 March 2019
Inside Earth SOI15 to 16 March 2019
Inside ten LD of Earth11 to 20 March 2019
Closest Moon approach2.57 LD at 1949 UTC on 15 March 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 20 March 2019 UTC
based on 85 observations spanning 3 days
Optical observation  
  • reported from 16 observing codes during 2.7833 days: 204, 703, 718, 900, C95, G40, H01, I47, I52, I93, J95, K87, K88, Q62, T08, W88
  • designation assigned to ATLAS Mauna Loa observation at 1330 UTC 17 March 2019
  • last observed at 0818 UTC on 20 March 2019 by Auger Obs.
Notesrisk
Links  
2019 FD   -     departed
Approximate diameter73 meters (H=23.333)
Closest Earth approach8.57 LD at 1722 UTC on 14 March 2019
Inside ten LD of Earth11 to 17 March 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 24 March 2019 UTC
based on 121 observations spanning 7 days
Optical observation  
  • reported from 20 observing codes during 6.5863 days: 118, 204, 595, 703, 900, C47, C95, H01, H21, I41, I52, I93, J95, K38, K51, K61, K87, K88, P93, Z80
  • designation assigned to Catalina Sky Survey observation at 1111 UTC 17 March 2019
  • last observed at 0115 UTC on 24 March 2019 by Nonndorf Obs.
NotesNHATS target
Links  
2019 FC   -     departed
Approximate diameter50 meters (H=24.133)
Closest Earth approach3.62 LD at 0322 UTC on 15 March 2019
Inside ten LD of Earth13 to 16 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 21 March 2019 UTC
based on 62 observations spanning 2 days
Optical observation  
  • reported from 14 observing codes during 1.8816 days: 204, 807, 900, C95, G96, H01, H21, I52, J95, K61, K88, L04, W34, Z80
  • designation assigned to Mt. Lemmon Survey observation at 0422 UTC 17 March 2019
  • last observed at 0131 UTC on 19 March 2019 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2019 FB   -     departed
Approximate diameter23 meters (H=25.838)
Closest Earth approach2.97 LD at 0404 UTC on 15 March 2019
Inside ten LD of Earth10 to 20 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 20 March 2019 UTC
based on 43 observations spanning 2 days
Optical observation  
  • reported from 11 observing codes during 1.6989 days: 703, C95, H01, H36, I41, I52, J95, K88, L01, T08, Z80
  • first observed at 0826 UTC on 16 March 2019 by the Zwicky Transient Facility
  • designation assigned to ATLAS Mauna Loa observation at 1406 UTC 16 March 2019
  • last observed at 0113 UTC on 18 March 2019 by Northolt Branch Obs.
Links  
2019 FA   -     departed intruder
Approximate diameter6 meters (H=28.689)
Closest Earth approach0.60 LD at 0113 UTC on 16 March 2019
Inside Earth-Moon system1040 on 15 March until 1547 UTC on 16 March 2019
Inside Earth SOI14 to 17 March 2019
Inside ten LD of Earth8 to 23 March 2019
Closest Moon approach0.35 LD at 2137 UTC on 15 March 2019
Inside one LD of Moon0119 on 15 March until 1744 UTC on 16 March 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 19 March 2019 UTC
based on 35 observations spanning 2 days
Optical observation  
  • reported from 9 observing codes during 1.9194 days: 381, 900, C95, G96, H06, I52, J95, K88, P93
  • designation assigned to Tokyo-Kiso Obs. observation at 1151 UTC 16 March 2019
  • last observed at 0955 UTC on 18 March 2019 by Hidetaka Sato via iTelescope Obs. Mayhill
Notesrisk, NHATS target
Links  
2019 EW2   -     departed
Approximate diameter20 meters (H=26.15)
Closest Earth approach3.60 LD at 0410 UTC on 11 March 2019 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth7 to 14 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 21 March 2019 UTC
based on 21 observations spanning 4 days
Optical observation  
  • reported from 4 observing codes during 3.9875 days: 807, G96, H01, H21
  • designation assigned to Mt. Lemmon Survey observation at 0836 UTC 15 March 2019
  • last observed at 0818 UTC on 19 March 2019 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2019 ES2   -   outbound
Approximate diameter23 meters (H=25.815)
Closest Earth approach7.61 LD at 1053 UTC on 20 March 2019
Inside ten LD of Earth16 to 24 March 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 17 March 2019 UTC
based on 21 observations spanning 2 days
Optical observation  
  • reported from 5 observing codes during 1.9227 days: G96, H21, I52, J95, L01
  • designation assigned to Mt. Lemmon Survey observation at 0911 UTC 15 March 2019
  • last observed at 0720 UTC on 17 March 2019 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2019 ER2   -   inbound
Approximate diameter22 meters (H=25.975)
Closest Earth approach8.88 LD at 0452 UTC on 25 March 2019 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth20 to 29 March 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 17 March 2019 UTC
based on 28 observations spanning 2 days
Optical observation  
  • reported from 5 observing codes during 2.0391 days: G96, H21, H36, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0806 UTC 15 March 2019
  • last observed at 0902 UTC on 17 March 2019 by Sandlot Obs.
NotesNHATS target
Links  
2019 EO2   -     departed
Approximate diameter69 meters (H=23.465)
Closest Earth approach7.07 LD at 2124 UTC on 12 March 2019
Inside ten LD of Earth10 to 15 March 2019
Data based onJPL SSD orbit solution #3 downloaded from JPL on 19 March 2019 UTC
based on 85 observations spanning 3 days
Optical observation  
  • reported from 15 observing codes during 2.9797 days: 511, 587, 595, 703, 807, C95, G40, H21, I47, I52, L01, L04, Q67, T08, X31
  • designation assigned to ATLAS Mauna Loa observation at 1014 UTC 14 March 2019
  • last observed at 0944 UTC on 17 March 2019 by ATLAS Mauna Loa
Links  
2019 EN2   -     departed intruder
Approximate diameter10 meters (H=27.596)
Closest Earth approach0.86 LD at 2337 UTC on 13 March 2019
Inside Earth-Moon system1803 on 13 March until 0511 UTC on 14 March 2019
Inside Earth SOI12 to 15 March 2019
Inside ten LD of Earth9 to 18 March 2019
Closest Moon approach1.52 LD at 2252 UTC on 13 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 18 March 2019 UTC
based on 85 observations spanning 4 days
Optical observation  
  • reported from 10 observing codes during 3.6179 days: 511, 587, 595, C95, H21, I41, I52, J95, L01, V01
  • first observed at 1052 UTC on 14 March 2019 by the Zwicky Transient Facility
  • designation assigned to Zwicky Transient Facility observation at 1108 UTC 14 March 2019
  • last observed at 0142 UTC on 18 March 2019 by Great Shefford Obs.
NotesNHATS target
Links  
2019 EL2   -     departed
Approximate diameter18 meters (H=26.369)
Closest Earth approach2.48 LD at 2133 UTC on 11 March 2019
Inside ten LD of Earth5 to 18 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 18 March 2019 UTC
based on 35 observations spanning 4 days
Optical observation  
  • reported from 7 observing codes during 3.8126 days: 511, 703, C95, I52, L01, T08, V01
  • designation assigned to ATLAS Mauna Loa observation at 1235 UTC 14 March 2019
  • last observed at 0805 UTC on 18 March 2019 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2019 EK2   -   outbound
Approximate diameter10 meters (H=27.622)
Closest Earth approach4.72 LD at 1726 UTC on 23 March 2019 - Note: JPL reports an approach uncertainty of +/- 10 minutes
Inside ten LD of Earth18 to 28 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 17 March 2019 UTC
based on 32 observations spanning 5 days
Optical observation  
  • reported from 4 observing codes during 5.0187 days: 291, 568, I52, L01
  • designation assigned to Mauna Kea observation at 0624 UTC 12 March 2019
  • last observed at 0651 UTC on 17 March 2019 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2019 EF2   -     departed
Approximate diameter24 meters (H=25.747)
Closest Earth approach4.48 LD at 1902 UTC on 14 March 2019
Inside ten LD of Earth10 to 19 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 14 March 2019 UTC
based on 89 observations spanning 2 days
Optical observation  
  • reported from 16 observing codes during 1.5634 days: 104, 511, 658, C77, J69, J95, K38, K41, K63, L01, L04, L18, P93, T08, W34, Z80
  • designation assigned to ATLAS Mauna Loa observation at 1109 UTC 12 March 2019
  • last observed at 0040 UTC on 14 March 2019 by Visnjan Obs.
NotesNHATS target
Links  
2019 EB2   -     departed
Approximate diameter22 meters (H=25.906)
Closest Earth approach5.18 LD at 1327 UTC on 8 March 2019
Inside ten LD of Earth5 to 11 March 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 11 March 2019 UTC
based on 23 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 1.8343 days: 587, 703, G96, H36, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 1213 UTC 9 March 2019
  • last observed at 0814 UTC on 11 March 2019 by Sandlot Obs.
Links  
2019 EA2   -   outbound intruder
Approximate diameter23 meters (H=25.812)
Closest Earth approach0.80 LD at 0152 UTC on 22 March 2019
Inside Earth-Moon system1332 on 21 March until 1412 UTC on 22 March 2019
Inside Earth SOI20 to 24 March 2019
Inside ten LD of Earth13 to 30 March 2019
Closest Moon approach1.24 LD at 1633 UTC on 21 March 2019
Data based onJPL SSD orbit solution #12 downloaded from JPL on 22 March 2019 UTC
based on 159 observations spanning 12 days
Optical observation  
  • reported from 23 observing codes during 11.7931 days: 089, 291, 695, 718, 807, C65, G40, G96, H01, H21, H36, I52, I89, J04, J95, K38, K87, K88, L01, Q62, T08, T12, W86
  • designation assigned to Mt. Lemmon Survey observation at 1154 UTC 9 March 2019
  • last observed at 0656 UTC on 21 March 2019 by LCO Cerro Tololo B
NotesNHATS target
Links  
2019 EZ1   -     departed
Approximate diameter22 meters (H=25.926)
Closest Earth approach8.64 LD at 1445 UTC on 4 March 2019
Inside ten LD of Earth2 to 6 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 19 March 2019 UTC
based on 43 observations spanning 6 days
Optical observation  
  • reported from 11 observing codes during 5.8211 days: 203, 204, 587, 703, 807, C95, H36, I52, J04, J95, L01
  • designation assigned to Catalina Sky Survey observation at 0615 UTC 9 March 2019
  • last observed at 0157 UTC on 15 March 2019 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2019 EW1   -     departed
Approximate diameter14 meters (H=26.974)
Closest Earth approach1.59 LD at 0205 UTC on 11 March 2019
Inside Earth SOI10 to 11 March 2019
Inside ten LD of Earth7 to 14 March 2019
Closest Moon approach1.74 LD at 0830 UTC on 11 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 11 March 2019 UTC
based on 53 observations spanning 2 days
Optical observation  
  • reported from 7 observing codes during 1.7004 days: 203, 204, 703, I52, J04, J95, L01
  • designation assigned to Catalina Sky Survey observation at 0811 UTC 9 March 2019
  • last observed at 0100 UTC on 11 March 2019 by Great Shefford Obs.
Links  
2019 EU1   -     departed
Approximate diameter26 meters (H=25.555)
Closest Earth approach2.72 LD at 0734 UTC on 6 March 2019
Inside ten LD of Earth28 Feb. until 12 March 2019
Data based onJPL SSD orbit solution #2 downloaded from JPL on 17 March 2019 UTC
based on 108 observations spanning 10 days
Optical observation  
  • reported from 21 observing codes during 10.0604 days: 104, 160, 381, 703, 900, C43, C77, C95, G34, I52, J04, J95, K33, K41, K63, K96, L01, L18, P93, T08, Z80
  • designation assigned to Catalina Sky Survey observation at 0806 UTC 7 March 2019
  • last observed at 0933 UTC on 17 March 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 EM1   -     departed
Approximate diameter121 meters (H=22.238)
Closest Earth approach6.24 LD at 1511 UTC on 28 Feb. 2019
Inside ten LD of Earth26 Feb. until 2 March 2019
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 March 2019 UTC
based on 111 observations spanning 13 days
Optical observation  
  • reported from 26 observing codes during 12.8674 days: 104, 203, 204, 587, 595, 658, 703, 850, C43, C77, C82, C95, H21, H36, I52, J04, K38, K74, K87, K88, L01, L04, P93, T08, T12, W34
  • designation assigned to ATLAS Mauna Loa observation at 0708 UTC 4 March 2019
  • last observed at 0357 UTC on 17 March 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 ED1   -     departed
Approximate diameter11 meters (H=27.533)
Closest Earth approach1.02 LD at 1548 UTC on 1 March 2019
Inside Earth SOI28 Feb. until 2 March 2019
Inside ten LD of Earth25 Feb. until 6 March 2019
Closest Moon approach1.62 LD at 0729 UTC on 1 March 2019
Data based onJPL SSD orbit solution #8 downloaded from JPL on 21 March 2019 UTC
based on 46 observations spanning 9 days
Optical observation  
  • reported from 10 observing codes during 8.8520 days: 104, 204, 291, 587, 703, 807, H21, J04, L01, T12
  • designation assigned to Catalina Sky Survey observation at 0538 UTC 5 March 2019
  • last observed at 0205 UTC on 14 March 2019 by Robert Holmes via Cerro Tololo Inter-American Obs.
Notesrisk, NHATS target
Links  
2019 ES   -     departed
Approximate diameter30 meters (H=25.274)
Closest Earth approach9.01 LD at 0743 UTC on 16 March 2019
Inside ten LD of Earth13 to 19 March 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 17 March 2019 UTC
based on 40 observations spanning 13 days
Optical observation  
  • reported from 9 observing codes during 12.8824 days: 104, 204, 587, G96, H01, H21, I52, J95, K96
  • designation assigned to Mt. Lemmon Survey observation at 0705 UTC 4 March 2019
  • last observed at 0416 UTC on 17 March 2019 by Great Shefford Obs.
NotesNHATS target
Links  
2019 EN   -   approaching
Approximate diameter196 meters (H=21.183)
Closest Earth approach9.69 LD at 0126 UTC on 27 March 2019
Inside ten LD of Earth26 to 27 March 2019
Data based onJPL SSD orbit solution #11 downloaded from JPL on 24 March 2019 UTC
based on 117 observations spanning 72 days
Optical observation  
  • reported from 20 observing codes during 71.5935 days: 291, 474, 595, 691, 703, C95, C97, E23, F51, I19, I52, K91, L01, L29, T08, W85, W86, W87, W88, X31
  • first observed at 1254 UTC on 10 Jan. 2019 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0651 UTC 2 March 2019
  • last observed at 0309 UTC on 23 March 2019 by Slooh.com Chile Obs. program code 12 via Slooh.com Chile Obs.
Links  
2019 EH   -     departed
Approximate diameter36 meters (H=24.876)
Closest Earth approach5.56 LD at 0703 UTC on 21 Feb. 2019
Inside ten LD of Earth13 to 28 Feb. 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 18 March 2019 UTC
based on 45 observations spanning 17 days
Optical observation  
  • reported from 8 observing codes during 16.8625 days: 291, 474, 807, E23, I19, K92, T08, X31
  • designation assigned to ATLAS Mauna Loa observation at 1142 UTC 1 March 2019
  • last observed at 0824 UTC on 18 March 2019 by the Spacewatch 1.8m telescope
NotesNHATS target
Links  
2019 EF   -     departed
Approximate diameter16 meters (H=26.628)
Closest Earth approach3.61 LD at 1938 UTC on 27 Feb. 2019
Inside ten LD of Earth25 Feb. until 2 March 2019
Data based onJPL SSD orbit solution #8 downloaded from JPL on 22 March 2019 UTC
based on 60 observations spanning 11 days
Optical observation  
  • reported from 13 observing codes during 11.1234 days: 104, 203, 204, 291, 595, 691, 703, C95, I52, J04, L01, T12, V06
  • designation assigned to Catalina Sky Survey observation at 0858 UTC 1 March 2019
  • last observed at 1155 UTC on 12 March 2019 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk
Links  
2019 ED   -     departed
Approximate diameter14 meters (H=26.85)
Closest Earth approach2.42 LD at 2111 UTC on 18 Feb. 2019 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth31 Jan. until 9 March 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 17 March 2019 UTC
based on 65 observations spanning 16 days
Optical observation  
  • reported from 14 observing codes during 16.0494 days: 203, 204, 587, 595, 695, C95, G96, I52, I93, J04, K63, K88, L01, T12
  • designation assigned to Mt. Lemmon Survey observation at 0440 UTC 1 March 2019
  • last observed at 0552 UTC on 17 March 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk, NHATS target
Links  
2019 DG2   -     departed intruder
Approximate diameter7 meters (H=28.475)
Closest Earth approach0.61 LD at 0738 UTC on 26 Feb. 2019 - Note: JPL reports an approach uncertainty of +/- 24 minutes
Inside Earth-Moon system0337-1139 UTC on 26 Feb. 2019
Inside Earth SOI25 to 26 Feb. 2019
Inside ten LD of Earth24 to 28 Feb. 2019
Closest Moon approach1.62 LD at 0801 UTC on 26 Feb. 2019
Data based onJPL SSD orbit solution #1 downloaded from JPL on 13 March 2019 UTC
based on 14 observations spanning one day
Optical observation  
  • reported from 3 observing codes during 23.758 hours: 807, G96, I52
  • designation assigned to Mt. Lemmon Survey observation at 0648 UTC 28 Feb. 2019
  • last observed at 0634 UTC on 1 March 2019 by the Mt. Lemmon Survey
Links  
2019 DB2   -     departed
Approximate diameter25 meters (H=25.632)
Closest Earth approach8.80 LD at 1834 UTC on 4 March 2019
Inside ten LD of Earth2 to 7 March 2019
Data based onJPL SSD orbit solution #5 downloaded from JPL on 19 March 2019 UTC
based on 37 observations spanning 7 days
Optical observation  
  • reported from 8 observing codes during 6.6339 days: 104, 474, I52, K88, L01, L04, L18, T08
  • designation assigned to ATLAS Mauna Loa observation at 1254 UTC 28 Feb. 2019
  • last observed at 0407 UTC on 7 March 2019 by Steward Obs. Mt. Lemmon Station
Links  
2019 DS1   -     departed Moon buzzer
Approximate diameter25 meters (H=25.665)
Closest Earth approach1.89 LD at 1923 UTC on 26 Feb. 2019
Inside Earth SOI26 to 27 Feb. 2019
Inside ten LD of Earth22 Feb. until 3 March 2019
Closest Moon approach0.94 LD at 1739 UTC on 26 Feb. 2019
Inside one LD of Moon1429-2050 UTC on 26 Feb. 2019
Data based onJPL SSD orbit solution #10 downloaded from JPL on 18 March 2019 UTC
based on 92 observations spanning 18 days
Optical observation  
  • reported from 19 observing codes during 17.9504 days: 203, 204, 291, 587, 595, 695, 703, 711, C95, G96, H21, I52, J04, K38, K41, K88, L01, T08, T12
  • designation assigned to Catalina Sky Survey observation at 0911 UTC 28 Feb. 2019
  • last observed at 0759 UTC on 18 March 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 DJ1   -     departed
Approximate diameter15 meters (H=26.728)
Closest Earth approach4.04 LD at 2219 UTC on 12 March 2019
Inside ten LD of Earth2 to 23 March 2019
Data based onJPL SSD orbit solution #10 downloaded from JPL on 13 March 2019 UTC
based on 80 observations spanning 2018-2019
Optical observation  
  • reported from 13 observing codes during 12.5780 days: 291, 595, 691, 703, 711, C95, G96, H36, I52, J04, J95, L01, T12
  • designation assigned to Catalina Sky Survey observation at 0713 UTC 28 Feb. 2019
  • last observed at 2105 UTC on 12 March 2019 by Great Shefford Obs.
Notesrisk, NHATS target
previous passage March 2018 at 7.23 LD
Links  
2019 DH1   -     departed
Approximate diameter20 meters (H=26.124)
Closest Earth approach8.52 LD at 1107 UTC on 18 March 2019
Inside ten LD of Earth13 to 23 March 2019
Data based onJPL SSD orbit solution #7 downloaded from JPL on 13 March 2019 UTC
based on 53 observations spanning 12 days
Optical observation  
  • reported from 8 observing codes during 12.1080 days: 474, 691, 711, 807, G96, H36, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0644 UTC 28 Feb. 2019
  • last observed at 0920 UTC on 12 March 2019 by Mt. John Obs.
NotesNHATS target
Links  
2019 DG1   -     departed
Approximate diameter16 meters (H=26.667)
Closest Earth approach4.82 LD at 0847 UTC on 3 March 2019
Inside ten LD of Earth25 Feb. until 8 March 2019
Data based onJPL SSD orbit solution #9 downloaded from JPL on 23 March 2019 UTC
based on 59 observations spanning 16 days
Optical observation  
  • reported from 15 observing codes during 16.2659 days: 291, 595, 695, 703, 711, C95, H36, I52, J04, K88, K96, L01, L18, T08, T12
  • designation assigned to Catalina Sky Survey observation at 0537 UTC 28 Feb. 2019
  • last observed at 1200 UTC on 16 March 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesrisk
Links  
2019 DP   -     departed
Approximate diameter34 meters (H=24.978)
Closest Earth approach2.87 LD at 1841 UTC on 23 Feb. 2019
Inside ten LD of Earth18 to 28 Feb. 2019
Data based onJPL SSD orbit solution #14 downloaded from JPL on 21 March 2019 UTC
based on 194 observations spanning 19 days
Optical observation  
  • reported from 39 observing codes during 18.6445 days: 104, 160, 203, 204, 246, 291, 474, 595, 691, 695, 703, 711, 807, 958, A17, C77, C95, G34, I52, I93, J04, J69, J95, K38, K41, K61, K63, K74, K80, K87, K88, L01, L04, L29, T08, T12, X31, Z80, Z99
  • designation assigned to ATLAS Mauna Loa observation at 1034 UTC 26 Feb. 2019
  • last observed at 0202 UTC on 17 March 2019 by Robert Holmes via Cerro Tololo Inter-American Obs.
Notesrisk, NHATS target
previous passage Aug. 2017 at 0.3 LD +/- 1.850 hours uncertainty (unobserved)
Links  
2019 DH   -     departed
Approximate diameter39 meters (H=24.7)
Closest Earth approach7.59 LD at 2101 UTC on 11 March 2019
Inside ten LD of Earth9 to 14 March 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 19 March 2019 UTC
based on 71 observations spanning 33 days
Optical observation  
  • reported from 18 observing codes during 33.1092 days: 204, 474, 595, 691, 703, 711, 807, C95, F51, G96, H21, I52, K61, K87, K88, L01, L18, T08
  • first observed at 0906 UTC on 4 Feb. 2019 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0737 UTC 26 Feb. 2019
  • last observed at 1144 UTC on 9 March 2019 by ATLAS Mauna Loa
Links  
2019 CZ2   -     departed
Approximate diameter41 meters (H=24.577)
Closest Earth approach4.45 LD at 1403 UTC on 31 Jan. 2019
Inside ten LD of Earth24 Jan. until 7 Feb. 2019
Data based onJPL SSD orbit solution #13 downloaded from JPL on 21 March 2019 UTC
based on 58 observations spanning 40 days
Optical observation  
  • reported from 8 observing codes during 39.6544 days: 691, 807, E23, G96, I52, K61, T08, W88
  • designation assigned to ATLAS Mauna Loa observation at 1158 UTC 5 Feb. 2019
  • last observed at 0341 UTC on 17 March 2019 by Robert Holmes via Cerro Tololo Inter-American Obs.
NotesNHATS target
Links  
2019 BE1   -     departed
Approximate diameter38 meters (H=24.734)
Closest Earth approach6.52 LD at 0513 UTC on 22 Jan. 2019
Inside ten LD of Earth18 to 26 Jan. 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 18 March 2019 UTC
based on 65 observations spanning 68 days
Optical observation  
  • reported from 12 observing codes during 67.9424 days: 204, 595, 703, 807, F51, F52, I52, K38, L01, T05, T08, V06
  • first observed at 0635 UTC on 5 Jan. 2019 by Pan-STARRS 1
  • designation assigned to ATLAS Haleakala observation at 1042 UTC 23 Jan. 2019
  • last observed at 0512 UTC on 14 March 2019 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2018 TG6   -     departed
Approximate diameter13 meters (H=27.1)
Closest Earth approach3.92 LD at 1605 UTC on 2 Dec. 2018
Inside ten LD of Earth30 Oct. until 5 Jan. 2019
Data based onJPL SSD orbit solution #25 downloaded from JPL on 24 March 2019 UTC
based on 134 observations spanning 2018-2019
Optical observation  
  • reported from 15 observing codes during 159.9809 days: 291, 474, 568, 691, 734, 807, F52, G37, G96, H21, I33, I52, J95, T12, V06
  • designation assigned to Pan-STARRS 2 observation at 1051 UTC 15 Oct. 2018
  • last observed at 1023 UTC on 24 March 2019 by the Spacewatch 1.8m telescope
NotesNHATS target
Links  
2018 LK   -     distant
Approximate diameter155 meters (H=21.7)
Closest Earth approach
Distance from Earth208.8 - 219.3 LD min-max during the observation period
Data based onJPL SSD orbit solution #13 downloaded from JPL on 23 March 2019 UTC
based on 154 observations spanning 2018-2019 including radar
Optical observation  
  • reported from 2 observing codes during 5.8859 days: 695, T12
  • first observed at 1511 UTC on 12 March 2019 by UH/Tholen NEO Follow-Up 2.24m Telescope
  • last observed at 1227 UTC on 18 March 2019 by Spacewatch via Kitt Peak Natl. Obs.
Notesprevious passage June 2018 at 7.62 LD
Links  
2016 GE1   -   approaching
Approximate diameter16 meters (H=26.6)
Closest Earth approach3.88 LD at 1725 UTC on 4 April 2019 - Note: JPL reports an approach uncertainty of +/- 4.902 days
Inside ten LD of Earth31 March until 8 April 2019
Data based onJPL SSD orbit solution #6 downloaded from JPL on 13 March 2019 UTC (dated 6 April 2017 local)
based on 96 observations spanning 3 days
Optical observation  
    none recent
Notesprevious passage April 2016 at 1.38 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.