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Legend - object IDs

Data compiled at 2327 UTC on 21 Sept. 2020 for 66 known objects during a period of seven days from 18 to 24 Sept. 2020. White type highlights objects with just announced discovery, and orange is for objects with a new JPL orbit solution (usually from new observation).

Chart
ID

Full ID
Period
Closest
Passage
Uncertainty

Status
ES42011 ES429.08 LD  departed
OK52020 OK510.30 LD+/- 3 minutesapproaching
PC22020 PC2116.08 LD  departed
PM72020 PM711.46 LDapproaching
PS2020 PS59.86 LD  departed
QH62020 QH649.25 LD  departed
QJ332014 QJ336.67 LDoutbound
QR52020 QR541.50 LD  departed intruder
RA12020 RA117.08 LD  departed
RA62020 RA61.36 LD  departed
RA72020 RA79.15 LD  departed
RB42020 RB411.3 LD+/- 1.0000 hours  departed
RB62020 RB66.70 LDinbound
RB72020 RB71.40 LD  departed
RD42020 RD46.99 LD  departed intruder
RE22020 RE242.05 LD  departed
RE42020 RE437.27 LD  departed
RE52020 RE531.82 LD+/- 3 minutes  departed intruder
RF32020 RF314.15 LD  departed intruder
RF82020 RF862.3 LD+/- 13.2000 hours  departed
RG22020 RG219.80 LD  departed
RH22020 RH211.87 LD+/- one minute  departed
RJ2020 RJ19.13 LD  departed
RJ22020 RJ23.84 LDoutbound
RK2020 RK47.12 LD  departed
RK12020 RK138.39 LD+/- 3 minutes  departed
RK22020 RK221.7 LD+/- 8 minutesapproaching
RK32020 RK346.35 LD+/- 3 minutes  departed
RL12020 RL17.27 LDoutbound
RM2020 RM10.39 LD  departed
RM12020 RM122.47 LD  departed
RM72020 RM749.1 LD+/- 9 minutes  departed
RN62020 RN622.85 LD  departed
RO22020 RO234.85 LD  departed
RQ2020 RQ59.64 LD+/- 7 minutes  departed
RQ32020 RQ36.17 LDoutbound
RQ62020 RQ63.36 LDpassing
RR42020 RR455.4 LD+/- 23 minutes  departed Moon buzzer
RS2020 RS26.10 LD  departed
RS12020 RS124.28 LD+/- 4 minutes  departed
RT22020 RT218.58 LD  departed
RU12009 RU141.6 LD  distant
RU22020 RU251.27 LD+/- 2 minutes  departed
RU62020 RU616.52 LD+/- one minute  departed
RW32020 RW37.39 LD  departed
RW72020 RW76.55 LD  departed
RX12020 RX119.13 LD+/- 3 minutes  departed
RY2020 RY26.5 LD+/- 9 minutes  departed
RY12020 RY121.63 LD  departed
RY22020 RY232.38 LD+/- 2 minutes  departed
RY72020 RY72.61 LDoutbound
RZ62020 RZ60.99 LDoutbound intruder
SA22020 SA21.53 LDoutbound
SA32020 SA38.99 LD+/- 3 minutesoutbound
SC2020 SC11.13 LD+/- one minute  departed
SJ22020 SJ23.77 LDpassing
SM12020 SM12.93 LD+/- one minuteoutbound
SM22020 SM23.12 LDinbound
SN2020 SN8.86 LDinbound
SO12020 SO11.95 LDoutbound
SP2020 SP4.33 LD+/- one minuteoutbound intruder
SQ2020 SQ9.52 LD+/- 6 minutesapproaching
SR22020 SR27.45 LDoutbound
SW2020 SW0.1 LD+/- 24 minutesinbound intruder
SZ22020 SZ20.95 LDoutbound intruder
UQ12018 UQ1192.2 LD  distant
DateTfc.Time
18 Sept. '20Rept. Line
19 Sept. '20Rept. Line
20 Sept. '20Rept. Line
21 Sept. '20Rept. Line
22 Sept. '20Rept. Line
23 Sept. '20 Line
24 Sept. '20 Line

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

2020 SA3   -   outbound
Approximate diameter28 meters (H=25.413)
Closest Earth approach8.99 LD at 0835 UTC on 19 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth16 to 22 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 21 Sept. 2020 UTC
based on 63 observations spanning one day
Optical observation  
  • reported from 14 observing codes during 1.4474 days: 246, 595, A17, H21, H36, J95, K62, K88, L04, U55, U63, W33, W34, Z99
  • designation assigned to Burnt Tree Hill Obs. observation at 0911 UTC 20 Sept. 2020
  • last observed at 1956 UTC on 21 Sept. 2020 by ROASTERR-1
Links  
2020 SZ2   -   outbound intruder
Approximate diameter4 meters (H=29.39)
Closest Earth approach0.95 LD at 0414 UTC on 19 Sept. 2020
Inside Earth-Moon system0117-0712 UTC on 19 Sept. 2020
Inside Earth SOI18 to 20 Sept. 2020
Inside ten LD of Earth15 to 23 Sept. 2020
Closest Moon approach1.02 LD at 1925 UTC on 18 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 21 Sept. 2020 UTC
based on 29 observations spanning one day
Optical observation  
  • reported from 7 observing codes during 24.269 hours: 246, G96, H21, I52, J04, J95, L01
  • designation assigned to Mt. Lemmon Survey observation at 0744 UTC 20 Sept. 2020
  • last observed at 0800 UTC on 21 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 SR2   -   outbound
Approximate diameter15 meters (H=26.794)
Closest Earth approach7.45 LD at 2110 UTC on 18 Sept. 2020
Inside ten LD of Earth14 to 23 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 18 observations spanning 8 days
Optical observation  
  • reported from 6 observing codes during 7.9337 days: F52, G96, H01, H21, J95, U63
  • first observed at 0555 UTC on 13 Sept. 2020 by Pan-STARRS 2
  • designation assigned to Burnt Tree Hill Obs. observation at 0922 UTC 20 Sept. 2020
  • last observed at 0419 UTC on 21 Sept. 2020 by ARO Westfield
Links  
2020 SM2   -   inbound
Approximate diameter6 meters (H=28.741)
Closest Earth approach3.12 LD at 0344 UTC on 22 Sept. 2020
Inside ten LD of Earth12 Sept. until 1 Oct. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 23 observations spanning 6 days
Optical observation  
  • reported from 5 observing codes during 5.6941 days: G96, I52, J04, J95, K62
  • first observed at 0737 UTC on 15 Sept. 2020 by the Mt. Lemmon Survey
  • designation assigned to Mt. Lemmon Survey observation at 0859 UTC 20 Sept. 2020
  • last observed at 0017 UTC on 21 Sept. 2020 by ESA Optical Ground Station program code 2 via ESA Optical Ground Station
Notesrisk, NHATS target
Links  
2020 SJ2   -   passing
Approximate diameter16 meters (H=26.683)
Closest Earth approach3.77 LD at 1654 UTC on 21 Sept. 2020
Inside ten LD of Earth17 to 26 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 21 Sept. 2020 UTC
based on 73 observations spanning one day
Optical observation  
  • reported from 19 observing codes during 24.420 hours: 246, 595, A17, A44, C43, C47, G34, G96, I41, I52, J04, J69, J95, K62, K87, L01, L04, L34, Z80
  • designation assigned to Mt. Lemmon Survey observation at 0743 UTC 20 Sept. 2020
  • last observed at 0808 UTC on 21 Sept. 2020 by the Zwicky Transient Facility
Links  
2020 SA2   -   outbound
Approximate diameter8 meters (H=28.099)
Closest Earth approach1.53 LD at 0622 UTC on 18 Sept. 2020
Inside Earth SOI17 to 18 Sept. 2020
Inside ten LD of Earth15 to 21 Sept. 2020
Closest Moon approach2.16 LD at 0147 UTC on 18 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 20 Sept. 2020 UTC
based on 28 observations spanning one day
Optical observation  
  • reported from 9 observing codes during 21.478 hours: 104, B49, G96, H21, I52, J04, J95, L01, N88
  • designation assigned to Mt. Lemmon Survey observation at 0842 UTC 19 Sept. 2020
  • last observed at 0611 UTC on 20 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 SO1   -   outbound
Approximate diameter13 meters (H=27.106)
Closest Earth approach1.13 LD at 1032 UTC on 16 Sept. 2020
Inside Earth SOI14 to 18 Sept. 2020
Inside ten LD of Earth6 to 26 Sept. 2020
Closest Moon approach2.07 LD at 1030 UTC on 16 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 62 observations spanning 4 days
Optical observation  
  • reported from 15 observing codes during 4.0454 days: 160, 246, 587, 703, B49, G96, I52, J04, K87, L01, L04, L34, N88, Z80, Z99
  • first observed at 0936 UTC on 17 Sept. 2020 by the Catalina Sky Survey
  • designation assigned to Catalina Sky Survey observation at 0822 UTC 19 Sept. 2020
  • last observed at 1041 UTC on 21 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Notesrisk, NHATS target
Links  
2020 SM1   -   outbound
Approximate diameter20 meters (H=26.179)
Closest Earth approach1.62 LD at 1343 UTC on 16 Sept. 2020
Inside Earth SOI15 to 17 Sept. 2020
Inside ten LD of Earth10 to 22 Sept. 2020
Closest Moon approach1.74 LD at 0506 UTC on 16 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 119 observations spanning 2 days
Optical observation  
  • reported from 24 observing codes during 1.9336 days: 104, 160, 246, 587, 595, 703, 970, B49, G96, I41, I52, J04, J69, K78, K87, K88, L01, L04, L18, L34, N88, W34, Z80, Z99
  • first observed at 0637 UTC on 19 Sept. 2020 by the Zwicky Transient Facility
  • designation assigned to Mt. Lemmon Survey observation at 0651 UTC 19 Sept. 2020
  • last observed at 0501 UTC on 21 Sept. 2020 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2020 SW   -   inbound intruder
Approximate diameter6 meters (H=28.902)
Closest Earth approach0.07 LD at 1117 UTC on 24 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 24 minutes
Inside Earth-Moon system1737 on 23 Sept. until 0456 UTC on 25 Sept. 2020
Inside Earth SOI22 to 26 Sept. 2020
Inside ten LD of Earth16 Sept. until 2 Oct. 2020
Closest Moon approach1.01 LD at 1323 UTC on 24 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 21 Sept. 2020 UTC
based on 28 observations spanning 3 days
Optical observation  
  • reported from 7 observing codes during 2.8970 days: F51, G34, G96, I52, J04, L01, V06
  • designation assigned to Mt. Lemmon Survey observation at 0738 UTC 18 Sept. 2020
  • last observed at 0509 UTC on 21 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Notesrisk, NHATS target
Links  
2020 SQ   -   approaching
Approximate diameter11 meters (H=27.486)
Closest Earth approach5.70 LD at 1608 UTC on 30 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 6 minutes
Inside ten LD of Earth24 Sept. until 6 Oct. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 19 Sept. 2020 UTC
based on 16 observations spanning 7 days
Optical observation  
  • reported from 3 observing codes during 6.6116 days: F51, F52, L01
  • first observed at 1016 UTC on 12 Sept. 2020 by Pan-STARRS 2
  • designation assigned to Pan-STARRS 2 observation at 0953 UTC 18 Sept. 2020
  • last observed at 0056 UTC on 19 Sept. 2020 by Visnjan Obs.
Notesrisk, NHATS target
Links  
2020 SP   -   outbound intruder
Approximate diameter13 meters (H=27.039)
Closest Earth approach0.86 LD at 0056 UTC on 13 Sept. 2020
Inside Earth-Moon system1103 on 12 Sept. until 1448 UTC on 13 Sept. 2020
Inside Earth SOI10 to 15 Sept. 2020
Inside ten LD of Earth1 to 24 Sept. 2020
Closest Moon approach1.74 LD at 0916 UTC on 13 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 20 Sept. 2020 UTC
based on 22 observations spanning 3 days
Optical observation  
  • reported from 6 observing codes during 3.6965 days: 204, 703, G96, H21, I52, J04
  • first observed at 0408 UTC on 16 Sept. 2020 by the Catalina Sky Survey
  • designation assigned to Mt. Lemmon Survey observation at 0251 UTC 17 Sept. 2020
  • last observed at 2051 UTC on 19 Sept. 2020 by ESA Optical Ground Station program code 2 via ESA Optical Ground Station
Notesrisk, NHATS target
Links  
2020 SN   -   inbound
Approximate diameter40 meters (H=24.643)
Closest Earth approach8.86 LD at 0118 UTC on 24 Sept. 2020
Inside ten LD of Earth21 to 27 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 38 observations spanning 3 days
Optical observation  
  • reported from 7 observing codes during 3.4650 days: 246, 595, L34, T05, T08, W88, X31
  • designation assigned to ATLAS Haleakala observation at 1027 UTC 17 Sept. 2020
  • last observed at 2136 UTC on 20 Sept. 2020 by KLENOT program code 1 via KLENOT
Links  
2020 SC   -     departed
Approximate diameter16 meters (H=26.689)
Closest Earth approach1.28 LD at 1754 UTC on 15 Sept. 2020
Inside Earth SOI15 to 16 Sept. 2020
Inside ten LD of Earth13 to 17 Sept. 2020
Closest Moon approach1.37 LD at 1334 UTC on 15 Sept. 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Sept. 2020 UTC
based on 70 observations spanning 3 days
Optical observation  
  • reported from 17 observing codes during 2.9061 days: 203, 204, 246, 595, 958, A17, C95, H21, I52, I93, J04, K87, L01, N88, T05, T08, Z99
  • designation assigned to ATLAS Haleakala observation at 1049 UTC 17 Sept. 2020
  • last observed at 0834 UTC on 20 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Notesrisk
Links  
2020 RF8   -     departed
Approximate diameter25 meters (H=25.63)
Closest Earth approach9.44 LD at 1618 UTC on 27 Aug. 2020 - Note: JPL reports an approach uncertainty of +/- 13.2000 hours
Inside ten LD of Earth26 to 28 Aug. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 17 Sept. 2020 UTC
based on 10 observations spanning 2 days
Optical observation  
  • reported from 2 observing codes during 2.0378 days: 568, F51
  • designation assigned to Pan-STARRS 1 observation at 0958 UTC 14 Sept. 2020
  • last observed at 1052 UTC on 16 Sept. 2020 by Pan-STARRS 1
Links  
2020 RY7   -   outbound
Approximate diameter17 meters (H=26.54)
Closest Earth approach2.61 LD at 1037 UTC on 20 Sept. 2020
Inside ten LD of Earth18 to 22 Sept. 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 20 Sept. 2020 UTC
based on 36 observations spanning 7 days
Optical observation  
  • reported from 9 observing codes during 6.5533 days: 104, 568, 711, F51, F52, I52, J95, L01, L34
  • designation assigned to Pan-STARRS 1 observation at 1055 UTC 13 Sept. 2020
  • last observed at 0012 UTC on 20 Sept. 2020 by Great Shefford Obs.
Links  
2020 RW7   -     departed
Approximate diameter32 meters (H=25.148)
Closest Earth approach1.20 LD at 0620 UTC on 14 Sept. 2020
Inside Earth SOI13 to 15 Sept. 2020
Inside ten LD of Earth8 to 20 Sept. 2020
Closest Moon approach2.10 LD at 0433 UTC on 14 Sept. 2020
Data based onJPL SSD orbit solution #5 downloaded from JPL on 21 Sept. 2020 UTC
based on 77 observations spanning 6 days
Optical observation  
  • reported from 12 observing codes during 6.0585 days: 474, 703, A44, E23, I52, J22, L01, Q62, T05, T08, W88, X31
  • designation assigned to ATLAS Mauna Loa observation at 1022 UTC 15 Sept. 2020
  • last observed at 1147 UTC on 21 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 RM7   -     departed
Approximate diameter15 meters (H=26.827)
Closest Earth approach1.71 LD at 1617 UTC on 5 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 9 minutes
Inside Earth SOI5 to 6 Sept. 2020
Inside ten LD of Earth3 to 8 Sept. 2020
Closest Moon approach2.43 LD at 2023 UTC on 5 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 16 Sept. 2020 UTC
based on 19 observations spanning 6 days
Optical observation  
  • reported from 6 observing codes during 5.9668 days: 711, F52, G96, I52, T12, V06
  • designation assigned to Mt. Lemmon Survey observation at 0518 UTC 10 Sept. 2020
  • last observed at 0430 UTC on 16 Sept. 2020 by McDonald Obs.
Links  
2020 RB7   -     departed
Approximate diameter12 meters (H=27.29)
Closest Earth approach1.40 LD at 1137 UTC on 18 Sept. 2020
Inside Earth SOIduring 18 Sept. 2020
Inside ten LD of Earth16 to 20 Sept. 2020
Closest Moon approach1.11 LD at 1654 UTC on 18 Sept. 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 18 Sept. 2020 UTC
based on 44 observations spanning 3 days
Optical observation  
  • reported from 10 observing codes during 2.6175 days: 246, A44, F51, H21, I52, I93, J95, L01, T12, Z84
  • designation assigned to Pan-STARRS 1 observation at 0944 UTC 15 Sept. 2020
  • last observed at 0033 UTC on 18 Sept. 2020 by Great Shefford Obs.
Notesrisk
Links  
2020 RA7   -     departed
Approximate diameter14 meters (H=26.973)
Closest Earth approach4.21 LD at 0104 UTC on 12 Sept. 2020
Inside ten LD of Earth5 to 18 Sept. 2020
Data based onJPL SSD orbit solution #6 downloaded from JPL on 20 Sept. 2020 UTC
based on 62 observations spanning 5 days
Optical observation  
  • reported from 14 observing codes during 4.7907 days: 246, 595, 958, A17, F52, H21, I52, I93, J69, J95, L01, T05, Z84, Z99
  • designation assigned to ATLAS Haleakala observation at 1116 UTC 15 Sept. 2020
  • last observed at 0614 UTC on 20 Sept. 2020 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2020 RZ6   -   outbound intruder
Approximate diameter16 meters (H=26.577)
Closest Earth approach0.88 LD at 1821 UTC on 17 Sept. 2020
Inside Earth-Moon system1234 on 17 Sept. until 0009 UTC on 18 Sept. 2020
Inside Earth SOI16 to 18 Sept. 2020
Inside ten LD of Earth12 to 22 Sept. 2020
Closest Moon approach1.32 LD at 2208 UTC on 17 Sept. 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 19 Sept. 2020 UTC
based on 80 observations spanning 3 days
Optical observation  
  • reported from 16 observing codes during 3.2692 days: 246, 958, H21, H36, I52, I93, J69, J95, K61, K83, K87, L01, L18, T05, T12, Z84
  • designation assigned to ATLAS Haleakala observation at 0847 UTC 15 Sept. 2020
  • last observed at 1514 UTC on 18 Sept. 2020 by UH/Tholen NEO Follow-Up 2.24m Telescope
Links  
2020 RU6   -     departed
Approximate diameter16 meters (H=26.685)
Closest Earth approach3.86 LD at 2343 UTC on 7 Sept. 2020
Inside ten LD of Earth2 to 13 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 16 Sept. 2020 UTC
based on 16 observations spanning 6 days
Optical observation  
  • reported from 4 observing codes during 5.7405 days: 703, G96, I52, L01
  • designation assigned to Catalina Sky Survey observation at 0917 UTC 10 Sept. 2020
  • last observed at 0304 UTC on 16 Sept. 2020 by Visnjan Obs.
NotesNHATS target
Links  
2020 RQ6   -   passing
Approximate diameter11 meters (H=27.518)
Closest Earth approach3.36 LD at 1000 UTC on 21 Sept. 2020
Inside ten LD of Earth15 to 27 Sept. 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 21 Sept. 2020 UTC
based on 36 observations spanning 7 days
Optical observation  
  • reported from 8 observing codes during 6.7009 days: 246, F51, G96, H21, I52, I93, J95, L01
  • designation assigned to Pan-STARRS 1 observation at 1012 UTC 14 Sept. 2020
  • last observed at 0301 UTC on 21 Sept. 2020 by Great Shefford Obs.
NotesNHATS target
Links  
2020 RN6   -     departed
Approximate diameter32 meters (H=25.09)
Closest Earth approach8.66 LD at 1642 UTC on 9 Sept. 2020
Inside ten LD of Earth7 to 11 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 35 observations spanning 8 days
Optical observation  
  • reported from 7 observing codes during 7.8480 days: 246, F52, H21, I52, I93, L01, T05
  • designation assigned to ATLAS Haleakala observation at 1128 UTC 13 Sept. 2020
  • last observed at 0749 UTC on 21 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 RB6   -   inbound
Approximate diameter27 meters (H=25.458)
Closest Earth approach6.70 LD at 1243 UTC on 22 Sept. 2020
Inside ten LD of Earth20 to 24 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 30 observations spanning 11 days
Optical observation  
  • reported from 6 observing codes during 11.4547 days: 246, 568, F51, F52, G96, L01
  • first observed at 1059 UTC on 9 Sept. 2020 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 2 observation at 1105 UTC 13 Sept. 2020
  • last observed at 2153 UTC on 20 Sept. 2020 by KLENOT program code 1 via KLENOT
Links  
2020 RA6   -     departed
Approximate diameter22 meters (H=25.978)
Closest Earth approach1.36 LD at 0056 UTC on 18 Sept. 2020
Inside Earth SOI17 to 18 Sept. 2020
Inside ten LD of Earth15 to 20 Sept. 2020
Closest Moon approach1.25 LD at 0547 UTC on 18 Sept. 2020
Data based onJPL SSD orbit solution #6 downloaded from JPL on 20 Sept. 2020 UTC
based on 108 observations spanning 12 days
Optical observation  
  • reported from 23 observing codes during 11.5925 days: 204, 246, 595, 734, 970, F51, F52, G34, G96, I41, J69, J95, K78, K83, K87, L01, L04, L18, L63, T05, V01, Z80, Z99
  • first observed at 1202 UTC on 6 Sept. 2020 by Pan-STARRS 1
  • designation assigned to Zwicky Transient Facility observation at 0705 UTC 14 Sept. 2020
  • last observed at 0216 UTC on 18 Sept. 2020 by Great Shefford Obs.
Links  
2020 RE5   -     departed intruder
Approximate diameter5 meters (H=29.046)
Closest Earth approach0.64 LD at 1649 UTC on 9 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside Earth-Moon system1159-2140 UTC on 9 Sept. 2020
Inside Earth SOI9 to 10 Sept. 2020
Inside ten LD of Earth7 to 12 Sept. 2020
Closest Moon approach1.44 LD at 1853 UTC on 9 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 15 Sept. 2020 UTC
based on 13 observations spanning 2 days
Optical observation  
  • reported from 3 observing codes during 2.1256 days: 568, F51, F52
  • designation assigned to Pan-STARRS 2 observation at 1014 UTC 12 Sept. 2020
  • last observed at 1315 UTC on 14 Sept. 2020 by Pan-STARRS 1
Links  
2020 RR4   -     departed Moon buzzer
Approximate diameter23 meters (H=25.877)
Closest Earth approach1.51 LD at 1632 UTC on 30 Aug. 2020 - Note: JPL reports an approach uncertainty of +/- 23 minutes
Inside Earth SOI30 to 31 Aug. 2020
Inside ten LD of Earth27 Aug. until 3 Sept. 2020
Closest Moon approach0.67 LD at 2047 UTC on 30 Aug. 2020
Inside one LD of Moon1421 on 30 Aug. until 0312 UTC on 31 Aug. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Sept. 2020 UTC
based on 19 observations spanning 7 days
Optical observation  
  • reported from 3 observing codes during 7.0230 days: F51, I52, T12
  • designation assigned to Pan-STARRS 1 observation at 1052 UTC 9 Sept. 2020
  • last observed at 1125 UTC on 16 Sept. 2020 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk
Links  
2020 RE4   -     departed
Approximate diameter9 meters (H=27.908)
Closest Earth approach1.73 LD at 1824 UTC on 8 Sept. 2020
Inside Earth SOI8 to 9 Sept. 2020
Inside ten LD of Earth6 to 11 Sept. 2020
Closest Moon approach2.11 LD at 1959 UTC on 8 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 16 Sept. 2020 UTC
based on 16 observations spanning 5 days
Optical observation  
  • reported from 5 observing codes during 5.1997 days: G96, I52, L01, T12, Z84
  • designation assigned to Mt. Lemmon Survey observation at 0415 UTC 10 Sept. 2020
  • last observed at 0902 UTC on 15 Sept. 2020 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk
Links  
2020 RD4   -     departed intruder
Approximate diameter4 meters (H=29.795)
Closest Earth approach0.28 LD at 2032 UTC on 14 Sept. 2020
Inside Earth-Moon system1014 on 14 Sept. until 0650 UTC on 15 Sept. 2020
Inside Earth SOI13 to 15 Sept. 2020
Inside ten LD of Earth10 to 19 Sept. 2020
Closest Moon approach0.90 LD at 0517 UTC on 15 Sept. 2020
Inside one LD of Moon0022-1012 UTC on 15 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 15 Sept. 2020 UTC
based on 27 observations spanning 2 days
Optical observation  
  • reported from 8 observing codes during 1.7433 days: 958, B49, F51, H21, I93, J95, L01, Z99
  • designation assigned to Pan-STARRS 1 observation at 1157 UTC 12 Sept. 2020
  • last observed at 0547 UTC on 14 Sept. 2020 by ARO Westfield
NotesNHATS target
Links  
2020 RB4   -     departed
Approximate diameter4 meters (H=29.665)
Closest Earth approach7.16 LD at 1512 UTC on 30 Aug. 2020 - Note: JPL reports an approach uncertainty of +/- 1.0000 hours
Inside ten LD of Earth13 Aug. until 14 Sept. 2020
Data based onJPL SSD orbit solution #1 dated 13 Sept. 2020 local
based on 13 observations spanning 3 days
Optical observation  
  • reported from 3 observing codes during 3.1398 days: F51, G96, V06
  • designation assigned to Mt. Lemmon Survey observation at 0706 UTC 10 Sept. 2020
  • last observed at 1027 UTC on 13 Sept. 2020 by Pan-STARRS 1
NotesNHATS target
Links  
2020 RW3   -     departed
Approximate diameter19 meters (H=26.293)
Closest Earth approach6.71 LD at 2030 UTC on 16 Sept. 2020
Inside ten LD of Earth14 to 19 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 16 Sept. 2020 UTC
based on 41 observations spanning 4 days
Optical observation  
  • reported from 12 observing codes during 3.9208 days: 104, 734, F52, G96, H21, H36, I52, I93, J95, L01, W34, Z99
  • first observed at 0453 UTC on 11 Sept. 2020 by the Mt. Lemmon Survey
  • designation assigned to Pan-STARRS 2 observation at 0842 UTC 13 Sept. 2020
  • last observed at 0259 UTC on 15 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 RQ3   -   outbound
Approximate diameter31 meters (H=25.198)
Closest Earth approach6.17 LD at 1847 UTC on 19 Sept. 2020
Inside ten LD of Earth18 to 21 Sept. 2020
Data based onJPL SSD orbit solution #6 downloaded from JPL on 19 Sept. 2020 UTC
based on 58 observations spanning 8 days
Optical observation  
  • reported from 12 observing codes during 8.4771 days: 246, F51, F52, G96, H36, I52, I93, J95, K83, K87, L01, Z99
  • first observed at 0814 UTC on 10 Sept. 2020 by the Mt. Lemmon Survey
  • designation assigned to Pan-STARRS 1 observation at 1150 UTC 12 Sept. 2020
  • last observed at 1941 UTC on 18 Sept. 2020 by Dettelbach Vineyard Obs.
Links  
2020 RK3   -     departed
Approximate diameter16 meters (H=26.603)
Closest Earth approach4.85 LD at 0414 UTC on 6 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth3 to 8 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 13 Sept. 2020 UTC
based on 15 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 2.0180 days: 568, F51, F52, L01
  • designation assigned to Pan-STARRS 2 observation at 1002 UTC 11 Sept. 2020
  • last observed at 1028 UTC on 13 Sept. 2020 by Pan-STARRS 1
Links  
2020 RF3   -     departed intruder
Approximate diameter7 meters (H=28.573)
Closest Earth approach0.24 LD at 0648 UTC on 14 Sept. 2020
Inside Earth-Moon system0043-1254 UTC on 14 Sept. 2020
Inside Earth SOI13 to 14 Sept. 2020
Inside ten LD of Earth11 to 16 Sept. 2020
Closest Moon approach0.90 LD at 0957 UTC on 14 Sept. 2020
Inside one LD of Moon0703-1250 UTC on 14 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 14 Sept. 2020 UTC
based on 40 observations spanning 2 days
Optical observation  
  • reported from 10 observing codes during 1.5943 days: 104, 204, 734, E23, F51, I93, J95, L01, N88, Z80
  • designation assigned to Pan-STARRS 1 observation at 1207 UTC 12 Sept. 2020
  • last observed at 0222 UTC on 14 Sept. 2020 by Great Shefford Obs.
Links  
2020 RY2   -     departed
Approximate diameter17 meters (H=26.542)
Closest Earth approach8.42 LD at 0717 UTC on 5 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth3 to 7 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 13 Sept. 2020 UTC
based on 18 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 2.5961 days: G96, I52, J95, L01
  • designation assigned to Mt. Lemmon Survey observation at 0814 UTC 10 Sept. 2020
  • last observed at 2232 UTC on 12 Sept. 2020 by Visnjan Obs.
Links  
2020 RU2   -     departed
Approximate diameter18 meters (H=26.396)
Closest Earth approach5.72 LD at 1339 UTC on 7 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth5 to 9 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 12 Sept. 2020 UTC
based on 15 observations spanning one day
Optical observation  
  • reported from 3 observing codes during 1.6277 days: G96, I52, L01
  • designation assigned to Mt. Lemmon Survey observation at 0516 UTC 10 Sept. 2020
  • last observed at 2019 UTC on 11 Sept. 2020 by Visnjan Obs.
Links  
2020 RT2   -     departed
Approximate diameter8 meters (H=28.171)
Closest Earth approach1.23 LD at 0505 UTC on 9 Sept. 2020
Inside Earth SOI8 to 10 Sept. 2020
Inside ten LD of Earth4 to 13 Sept. 2020
Closest Moon approach2.17 LD at 0912 UTC on 9 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 22 observations spanning 6 days
Optical observation  
  • reported from 8 observing codes during 6.2431 days: F51, F52, G96, I93, J95, L01, T12, V01
  • first observed at 0333 UTC on 10 Sept. 2020 by the Mt. Lemmon Survey
  • designation assigned to Pan-STARRS 2 observation at 0749 UTC 11 Sept. 2020
  • last observed at 0923 UTC on 16 Sept. 2020 by Pan-STARRS 1
NotesNHATS target
Links  
2020 RO2   -     departed
Approximate diameter10 meters (H=27.634)
Closest Earth approach2.72 LD at 0612 UTC on 8 Sept. 2020
Inside ten LD of Earth5 to 10 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 16 Sept. 2020 UTC
based on 16 observations spanning 6 days
Optical observation  
  • reported from 5 observing codes during 6.0508 days: F51, G96, I52, L01, T12
  • first observed at 0802 UTC on 9 Sept. 2020 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0450 UTC 10 Sept. 2020
  • last observed at 0916 UTC on 15 Sept. 2020 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk
Links  
2020 RK2   -   approaching
Approximate diameter47 meters (H=24.308)
Closest Earth approach9.96 LD at 1311 UTC on 7 Oct. 2020 - Note: JPL reports an approach uncertainty of +/- 8 minutes
Inside ten LD of Earth6 to 8 Oct. 2020
Data based onJPL SSD orbit solution #6 downloaded from JPL on 21 Sept. 2020 UTC
based on 50 observations spanning 10 days
Optical observation  
  • reported from 9 observing codes during 10.5837 days: 246, A44, F52, G96, I41, I52, I93, L01, T08
  • designation assigned to Mt. Lemmon Survey observation at 0516 UTC 10 Sept. 2020
  • last observed at 1916 UTC on 20 Sept. 2020 by KLENOT program code 1 via KLENOT
Links  
2020 RJ2   -   outbound
Approximate diameter5 meters (H=29.377)
Closest Earth approach3.44 LD at 0105 UTC on 16 Sept. 2020
Inside ten LD of Earth5 to 26 Sept. 2020
Data based onJPL SSD orbit solution #5 downloaded from JPL on 18 Sept. 2020 UTC
based on 26 observations spanning 7 days
Optical observation  
  • reported from 6 observing codes during 7.1978 days: G96, I52, J95, L01, T12, V06
  • designation assigned to Mt. Lemmon Survey observation at 0449 UTC 10 Sept. 2020
  • last observed at 0934 UTC on 17 Sept. 2020 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk, NHATS target
Links  
2020 RH2   -     departed
Approximate diameter14 meters (H=26.936)
Closest Earth approach8.59 LD at 2050 UTC on 13 Sept. 2020
Inside ten LD of Earth11 to 16 Sept. 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 12 Sept. 2020 UTC
based on 16 observations spanning one day
Optical observation  
  • reported from 3 observing codes during 1.6850 days: G96, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0545 UTC 10 Sept. 2020
  • last observed at 2212 UTC on 11 Sept. 2020 by Great Shefford Obs.
NotesNHATS target
Links  
2020 RG2   -     departed
Approximate diameter13 meters (H=27.162)
Closest Earth approach3.41 LD at 1926 UTC on 11 Sept. 2020
Inside ten LD of Earth8 to 14 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 12 Sept. 2020 UTC
based on 26 observations spanning one day
Optical observation  
  • reported from 6 observing codes during 1.6684 days: 204, 703, G96, I52, J95, L01
  • designation assigned to Mt. Lemmon Survey observation at 0636 UTC 10 Sept. 2020
  • last observed at 2239 UTC on 11 Sept. 2020 by Great Shefford Obs.
Links  
2020 RE2   -     departed
Approximate diameter26 meters (H=25.593)
Closest Earth approach4.98 LD at 0211 UTC on 9 Sept. 2020
Inside ten LD of Earth7 to 10 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 14 Sept. 2020 UTC
based on 49 observations spanning one day
Optical observation  
  • reported from 15 observing codes during 3.8979 days: 104, 595, 958, A17, F52, G96, I52, I93, K83, K88, L01, L18, T05, V01, Z80
  • designation assigned to Mt. Lemmon Survey observation at 0609 UTC 10 Sept. 2020
  • last observed at 0342 UTC on 14 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 RY1   -     departed
Approximate diameter18 meters (H=26.359)
Closest Earth approach4.04 LD at 0035 UTC on 9 Sept. 2020
Inside ten LD of Earth5 to 12 Sept. 2020
Data based onJPL SSD orbit solution #7 downloaded from JPL on 18 Sept. 2020 UTC
based on 57 observations spanning 7 days
Optical observation  
  • reported from 13 observing codes during 6.9857 days: 104, 595, 958, A17, F52, I52, I93, K88, L01, L18, T05, T08, Z80
  • designation assigned to ATLAS Haleakala observation at 0958 UTC 10 Sept. 2020
  • last observed at 0938 UTC on 17 Sept. 2020 by Pan-STARRS 2
Links  
2020 RX1   -     departed
Approximate diameter10 meters (H=27.549)
Closest Earth approach1.39 LD at 1725 UTC on 8 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside Earth SOI7 to 9 Sept. 2020
Inside ten LD of Earth3 to 13 Sept. 2020
Closest Moon approach1.13 LD at 2121 UTC on 8 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 14 Sept. 2020 UTC
based on 24 observations
Optical observation  
  • reported from 7 observing codes during 3.8715 days: 703, 958, I52, I93, K88, L01, L18
  • designation assigned to Catalina Sky Survey observation at 0816 UTC 10 Sept. 2020
  • last observed at 0511 UTC on 14 Sept. 2020 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2020 RS1   -     departed
Approximate diameter13 meters (H=27.067)
Closest Earth approach2.69 LD at 1127 UTC on 4 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 4 minutes
Inside ten LD of Earth30 Aug. until 9 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 19 Sept. 2020 UTC
based on 24 observations spanning 9 days
Optical observation  
  • reported from 7 observing codes during 9.0816 days: 204, 246, F51, H21, I52, J95, L01
  • designation assigned to Pan-STARRS 1 observation at 1201 UTC 9 Sept. 2020
  • last observed at 1358 UTC on 18 Sept. 2020 by Pan-STARRS 1
NotesNHATS target
Links  
2020 RM1   -     departed
Approximate diameter18 meters (H=26.425)
Closest Earth approach1.44 LD at 1246 UTC on 7 Sept. 2020
Inside Earth SOI6 to 8 Sept. 2020
Inside ten LD of Earth2 to 12 Sept. 2020
Closest Moon approach1.56 LD at 2031 UTC on 7 Sept. 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 15 Sept. 2020 UTC
based on 81 observations spanning 6 days
Optical observation  
  • reported from 20 observing codes during 6.2795 days: 160, 204, 246, 595, 703, A17, F52, G34, G96, I52, J69, J95, K62, K83, K87, L04, L18, T08, Y00, Z80
  • designation assigned to SONEAR observation at 0053 UTC 8 Sept. 2020
  • last observed at 0735 UTC on 14 Sept. 2020 by the Mt. Lemmon Survey
Links  
2020 RL1   -   outbound
Approximate diameter14 meters (H=26.943)
Closest Earth approach5.19 LD at 0600 UTC on 13 Sept. 2020
Inside ten LD of Earth5 to 21 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 13 Sept. 2020 UTC
based on 22 observations spanning 5 days
Optical observation  
  • reported from 5 observing codes during 5.0410 days: 204, 246, F52, L01, T05
  • first observed at 0842 UTC on 5 Sept. 2020 by Pan-STARRS 2
  • designation assigned to ATLAS Haleakala observation at 0916 UTC 9 Sept. 2020
  • last observed at 0941 UTC on 10 Sept. 2020 by ATLAS Haleakala
NotesNHATS target
Links  
2020 RK1   -     departed
Approximate diameter27 meters (H=25.509)
Closest Earth approach1.09 LD at 0151 UTC on 4 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside Earth SOI3 to 4 Sept. 2020
Inside ten LD of Earth31 Aug. until 7 Sept. 2020
Closest Moon approach1.17 LD at 1134 UTC on 4 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 17 Sept. 2020 UTC
based on 45 observations spanning 7 days
Optical observation  
  • reported from 14 observing codes during 6.9191 days: 104, 204, 246, 958, E94, F51, F52, G96, I93, K38, K61, K88, L01, T08
  • designation assigned to ATLAS Mauna Loa observation at 1126 UTC 8 Sept. 2020
  • last observed at 0929 UTC on 15 Sept. 2020 by the Mt. Lemmon Survey
Links  
2020 RA1   -     departed
Approximate diameter30 meters (H=25.294)
Closest Earth approach8.55 LD at 0912 UTC on 11 Sept. 2020
Inside ten LD of Earth9 to 13 Sept. 2020
Data based onJPL SSD orbit solution #8 downloaded from JPL on 15 Sept. 2020 UTC
based on 107 observations spanning 8 days
Optical observation  
  • reported from 20 observing codes during 7.7029 days: 104, 160, 204, 246, 595, 958, A17, E89, G34, H21, I52, I93, J69, K87, L01, L18, T05, T08, Z80, Z99
  • designation assigned to ATLAS Mauna Loa observation at 1115 UTC 7 Sept. 2020
  • last observed at 0408 UTC on 15 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 RY   -     departed
Approximate diameter13 meters (H=27.004)
Closest Earth approach1.27 LD at 1603 UTC on 2 Sept. 2020 - Note: JPL reports an approach uncertainty of +/- 9 minutes
Inside Earth SOI1 to 3 Sept. 2020
Inside ten LD of Earth27 Aug. until 8 Sept. 2020
Closest Moon approach1.35 LD at 0153 UTC on 3 Sept. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 10 Sept. 2020 UTC
based on 17 observations spanning 3 days
Optical observation  
  • reported from 4 observing codes during 2.7835 days: F51, I52, I93, L01
  • designation assigned to Pan-STARRS 1 observation at 1115 UTC 7 Sept. 2020
  • last observed at 0603 UTC on 10 Sept. 2020 by Steward Obs. Mt. Lemmon Station
Links  
2020 RS   -     departed
Approximate diameter26 meters (H=25.555)
Closest Earth approach8.96 LD at 1811 UTC on 31 Aug. 2020
Inside ten LD of Earth28 Aug. until 3 Sept. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 Sept. 2020 UTC
based on 22 observations spanning 15 days
Optical observation  
  • reported from 6 observing codes during 15.0570 days: 203, 474, E23, F51, I93, L01
  • first observed at 0901 UTC on 5 Sept. 2020 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 0625 UTC 7 Sept. 2020
  • last observed at 1023 UTC on 20 Sept. 2020 by Mt. John Obs.
NotesNHATS target
Links  
2020 RQ   -     departed
Approximate diameter23 meters (H=25.879)
Closest Earth approach7.95 LD at 2353 UTC on 23 Aug. 2020 - Note: JPL reports an approach uncertainty of +/- 7 minutes
Inside ten LD of Earth21 to 26 Aug. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 12 Sept. 2020 UTC
based on 14 observations spanning 6 days
Optical observation  
  • reported from 4 observing codes during 5.7421 days: F51, F52, H21, I52
  • first observed at 0927 UTC on 4 Sept. 2020 by Pan-STARRS 2
  • designation assigned to Pan-STARRS 1 observation at 0604 UTC 6 Sept. 2020
  • last observed at 0315 UTC on 10 Sept. 2020 by ARO Westfield
NotesNHATS target
Links  
2020 RM   -     departed
Approximate diameter14 meters (H=26.99)
Closest Earth approach2.72 LD at 0421 UTC on 11 Sept. 2020
Inside ten LD of Earth4 to 17 Sept. 2020
Data based onJPL SSD orbit solution #6 downloaded from JPL on 13 Sept. 2020 UTC
based on 44 observations spanning 4 days
Optical observation  
  • reported from 10 observing codes during 3.6377 days: 104, 204, B49, G96, I52, I93, J95, K83, K87, L01
  • designation assigned to Mt. Lemmon Survey observation at 0924 UTC 6 Sept. 2020
  • last observed at 0042 UTC on 10 Sept. 2020 by Great Shefford Obs.
NotesNHATS target
Links  
2020 RK   -     departed
Approximate diameter30 meters (H=25.248)
Closest Earth approach3.40 LD at 1613 UTC on 1 Sept. 2020
Inside ten LD of Earth29 Aug. until 4 Sept. 2020
Data based onJPL SSD orbit solution #9 downloaded from JPL on 19 Sept. 2020 UTC
based on 105 observations spanning 13 days
Optical observation  
  • reported from 24 observing codes during 13.2454 days: 104, 160, 204, 246, 595, 703, B49, D29, G34, G96, H21, I52, I93, J69, J95, K83, K87, L01, L04, T12, V01, W33, W34, Z80
  • designation assigned to Catalina Sky Survey observation at 0556 UTC 5 Sept. 2020
  • last observed at 1149 UTC on 18 Sept. 2020 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk
Links  
2020 RJ   -     departed
Approximate diameter22 meters (H=25.985)
Closest Earth approach3.29 LD at 2244 UTC on 8 Sept. 2020
Inside ten LD of Earth4 to 13 Sept. 2020
Data based onJPL SSD orbit solution #7 downloaded from JPL on 20 Sept. 2020 UTC
based on 111 observations spanning 5 days
Optical observation  
  • reported from 21 observing codes during 4.8394 days: 104, 160, 204, 734, B49, G34, G96, H21, I52, I93, J95, K61, K87, L01, L04, L18, W33, W34, Z43, Z80, Z99
  • designation assigned to Mt. Lemmon Survey observation at 0513 UTC 5 Sept. 2020
  • last observed at 0122 UTC on 10 Sept. 2020 by Schiaparelli Obs.
Links  
2020 QH6   -     departed
Approximate diameter9 meters (H=27.796)
Closest Earth approach3.97 LD at 1039 UTC on 24 Aug. 2020
Inside ten LD of Earth19 to 29 Aug. 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 14 Sept. 2020 UTC
based on 13 observations spanning 17 days
Optical observation  
  • reported from 4 observing codes during 17.3060 days: G96, I52, L01, T14
  • designation assigned to Mt. Lemmon Survey observation at 0557 UTC 27 Aug. 2020
  • last observed at 1318 UTC on 13 Sept. 2020 by UH/Tholen NEO Follow-Up CFH Telescope
Links  
2020 QR5   -     departed intruder
Approximate diameter12 meters (H=27.318)
Closest Earth approach0.83 LD at 0419 UTC on 23 Aug. 2020
Inside Earth-Moon system1943 on 22 Aug. until 1255 UTC on 23 Aug. 2020
Inside Earth SOI21 to 24 Aug. 2020
Inside ten LD of Earth16 to 29 Aug. 2020
Closest Moon approach1.29 LD at 1400 UTC on 22 Aug. 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 17 Sept. 2020 UTC
based on 52 observations spanning 23 days
Optical observation  
  • reported from 13 observing codes during 22.7771 days: 160, 246, 703, 958, B49, F51, I52, K88, L01, L18, L34, T05, T12
  • first observed at 1507 UTC on 23 Aug. 2020 by Pan-STARRS 1
  • designation assigned to ATLAS Haleakala observation at 1310 UTC 25 Aug. 2020
  • last observed at 0946 UTC on 15 Sept. 2020 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk, NHATS target
Links  
2020 PM7   -   approaching
Approximate diameter115 meters (H=22.337)
Closest Earth approach7.47 LD at 1415 UTC on 29 Sept. 2020
Inside ten LD of Earth26 Sept. until 3 Oct. 2020
Data based onJPL SSD orbit solution #9 downloaded from JPL on 21 Sept. 2020 UTC
based on 170 observations spanning 2016-2020
Optical observation  
  • reported from 28 observing codes during 69.4137 days: 104, 122, 160, 204, 595, 703, 734, 958, A44, B91, C77, F51, F52, G17, G34, I93, J69, J95, K62, K74, K83, K87, K88, L01, L18, T05, T08, Z43
  • first observed at 0900 UTC on 13 July 2020 by Pan-STARRS 2
  • designation assigned to Pan-STARRS 2 observation at 0731 UTC 12 Aug. 2020
  • last observed at 1855 UTC on 20 Sept. 2020 by Dettelbach Vineyard Obs.
Notesprevious observation Nov.-Dec. 2016
Links  
2020 PC2   -     departed
Approximate diameter17 meters (H=26.553)
Closest Earth approach8.20 LD at 1244 UTC on 4 Aug. 2020
Inside ten LD of Earth2 to 7 Aug. 2020
Data based onJPL SSD orbit solution #3 downloaded from JPL on 14 Sept. 2020 UTC
based on 13 observations spanning 33 days
Optical observation  
Links  
2020 PS   -     departed
Approximate diameter42 meters (H=24.53)
Closest Earth approach6.22 LD at 0010 UTC on 19 Aug. 2020
Inside ten LD of Earth15 to 22 Aug. 2020
Data based onJPL SSD orbit solution #17 downloaded from JPL on 18 Sept. 2020 UTC
based on 119 observations spanning 38 days
Optical observation  
  • reported from 19 observing codes during 38.4016 days: 033, 104, 160, 204, 246, C47, F52, G96, I52, J04, J69, J95, K38, K73, K87, K88, L01, L18, Z99
  • designation assigned to Mt. Lemmon Survey observation at 0340 UTC 10 Aug. 2020
  • last observed at 1319 UTC on 17 Sept. 2020 by Pan-STARRS 2
Links  
2020 OK5   -   approaching
Approximate diameter26 meters (H=25.558)
Closest Earth approach6.40 LD at 0858 UTC on 29 Oct. 2020 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth26 Sept. until 30 Nov. 2020
Data based onJPL SSD orbit solution #17 downloaded from JPL on 13 Sept. 2020 UTC
based on 95 observations spanning 62 days
Optical observation  
  • reported from 11 observing codes during 61.6036 days: 204, 246, 734, F51, F52, H36, I52, J04, K91, K93, T08
  • first observed at 1327 UTC on 13 July 2020 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 1106 UTC 18 July 2020
  • last observed at 0357 UTC on 13 Sept. 2020 by Farpoint Obs.
NotesNHATS target
Links  
2018 UQ1   -     distant
Approximate diameter135 meters (H=22.)
Closest Earth approach
Distance from Earth228.7 - 228.9 LD min-max during the observation period
Data based onJPL SSD orbit solution #23 downloaded from JPL on 14 Sept. 2020 UTC
based on 247 observations spanning 2018-2020
Optical observation  
  • reported from one observing code during 0.864 hours: F51
  • first observed at 1043 UTC on 13 Sept. 2020 by Pan-STARRS 1
  • last observed at 1135 UTC on 13 Sept. 2020 by Pan-STARRS 1
Notesprevious passage Nov. 2018 at 9.40 LD and observation June 2019
Links  
2014 QJ33   -   outbound
Approximate diameter62 meters (H=23.7)
Closest Earth approach6.67 LD at 2349 UTC on 17 Sept. 2020
Inside ten LD of Earth14 to 21 Sept. 2020
Data based onJPL SSD orbit solution #24 downloaded from JPL on 18 Sept. 2020 UTC
based on 219 observations spanning 2014-2020
Optical observation  
  • reported from 23 observing codes during 37.3604 days: 160, 203, 246, 595, 703, A17, C95, D29, F51, G33, G34, G40, G96, K61, K74, K87, L18, L63, T05, T08, W16, Z80, Z99
  • first observed at 1204 UTC on 11 Aug. 2020 by Pan-STARRS 1
  • last observed at 2043 UTC on 17 Sept. 2020 by Clixby Obs.
NotesNHATS target
previous observation Aug.-Sept. 2014
Links  
2011 ES4   -     departed
Approximate diameter28 meters (H=25.4)
Closest Earth approach3.85 LD at 0747 UTC on 2 Sept. 2020
Inside ten LD of Earth28 Aug. until 7 Sept. 2020
Data based onJPL SSD orbit solution #17 downloaded from JPL on 21 Sept. 2020 UTC
based on 142 observations spanning 2011-2020
Optical observation  
  • reported from 24 observing codes during 6.9860 days: 104, 204, 595, 734, E23, F51, F52, G96, H06, H21, I52, I93, J69, J95, K83, K87, L01, L18, Q62, T05, W33, W34, X31, Z80
  • first observed at 0842 UTC on 5 Sept. 2020 by Pan-STARRS 1
  • last observed at 0822 UTC on 12 Sept. 2020 by Pan-STARRS 1
NotesNHATS target
previous observation March 2011
Links  
2009 RU1   -     distant
Approximate diameter47 meters (H=24.3)
Closest Earth approach
Distance from Earth26.6 - 35.0 LD min-max during the observation period
Data based onJPL SSD orbit solution #11 downloaded from JPL on 16 Sept. 2020 UTC
based on 47 observations spanning 2009-2020
Optical observation  
  • reported from 3 observing codes during 3.9992 days: F51, G96, I52
  • first observed at 0541 UTC on 11 Sept. 2020 by Pan-STARRS 1
  • last observed at 0540 UTC on 15 Sept. 2020 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
previous passage Sept. 2009 at 5.99 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.