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Legend - object IDs plus links to more info

Data compiled at 1815 UTC on 30 Sept. 2016 for 34 known objects during a period of seven days from 27 Sept. to 3 Oct. 2016. 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
FV132016 FV13232.3 LD  distant
QE452016 QE4559.8 LD  distant
QY12016 QY1156.17 LD+/- 2 minutes  departed
RB12016 RB130.61 LD  departed intruder
RD342016 RD345.96 LD+/- 2 minutesoutbound
RE342016 RE3416.72 LD  departed Moon buzzer
RF342016 RF3426.62 LD  departed
RK402016 RK4064.41 LD+/- one minute  departed Moon buzzer
RM202016 RM2010.51 LD+/- one minute  departed
RM402016 RM4099.16 LD  departed
RN202016 RN2012.89 LD+/- 2 minutes  departed
RN412016 RN4137.74 LD  departed intruder
RP172016 RP17116.24 LD  departed
RR12016 RR137.32 LD  departed intruder
RV332016 RV3344.38 LD  departed
SA22016 SA22.19 LDoutbound intruder
SC2016 SC3.59 LDoutbound
SC172016 SC1730.5 LD+/- 25 minutes  departed
SF12016 SF131.2 LD+/- 9 minutes  departed Moon buzzer
SG2016 SG2.34 LD  departed
SH22016 SH29.17 LD  departed
SJ2016 SJ15.94 LD  departed intruder
SJ22016 SJ212.80 LD  departed
SK22016 SK226.89 LD+/- 2 minutes  departed
SL22016 SL22.38 LDoutbound
SP32016 SP315.37 LD+/- 3 minutes  departed
SR22016 SR25.73 LD+/- one minuteinbound
SU22016 SU26.41 LD  departed intruder
SW12016 SW11.34 LDoutbound
SW32016 SW32.10 LDoutbound
SX12016 SX12.19 LDoutbound
SY12016 SY118.32 LD+/- 5 minutes  departed
SZ12016 SZ16.12 LDoutbound
UG2009 UG7.3 LD+/- 1.147 dayspassing
DateTfc.Time
27 Sept. '16Rept. Line
28 Sept. '16Rept. Line
29 Sept. '16Rept. Line
30 Sept. '16Rept. Line
1 Oct. '16Rept. Line
2 Oct. '16 Line
3 Oct. '16 Line

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

2016 SC17   -     departed
Approximate diameter28 meters (H=25.378)
Closest Earth approach4.62 LD at 0509 UT on 11 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 25 minutes
Inside ten LD of Earth6 to 15 Sept. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 30 Sept. 2016 UTC
based on 12 observations spanning 5 days
Optical observation  
  • reported from 3 observing codes during 4.8048 days: 291, 568, F51
  • designation assigned to Pan-STARRS 1 observation at 1405 UT 25 Sept. 2016
  • last observed at 0924 UT on 30 Sept. 2016 by the Spacewatch 1.8m telescope
Notesrisk
Links  
2016 SW3   -   outbound
Approximate diameter8 meters (H=28.168)
Closest Earth approach1.00 LD at 0450 UT on 26 Sept. 2016
Inside Earth SOI25 to 27 Sept. 2016
Inside ten LD of Earth21 to 30 Sept. 2016
Closest Moon approach1.63 LD at 0523 UT on 26 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 28 Sept. 2016 UTC
based on 23 observations spanning one day
Optical observation  
  • reported from 7 observing codes during 18.996 hours: 104, 246, 461, 568, G96, J95, Y28
  • designation assigned to Mt. Lemmon Survey observation at 0907 UT 27 Sept. 2016
  • last observed at 0407 UT on 28 Sept. 2016 by Sertao de Itaparica Obs.
Links  
2016 SP3   -     departed
Approximate diameter9 meters (H=27.991)
Closest Earth approach2.55 LD at 1131 UT on 19 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth14 to 24 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 28 Sept. 2016 UTC
based on 21 observations spanning 3 days
Optical observation  
  • reported from 3 observing codes during 2.8400 days: 807, G96, W85
  • designation assigned to Mt. Lemmon Survey observation at 0845 UT 25 Sept. 2016
  • last observed at 0455 UT on 28 Sept. 2016 by Robert Holmes via Cerro Tololo Inter-American Obs.
NotesNHATS target
Links  
2016 SU2   -     departed intruder
Approximate diameter9 meters (H=27.764)
Closest Earth approach0.91 LD at 1906 UT on 24 Sept. 2016
Inside Earth-Moon system1542-2229 UT on 24 Sept. 2016
Inside Earth SOI24 to 25 Sept. 2016
Inside ten LD of Earth21 to 28 Sept. 2016
Closest Moon approach1.65 LD at 1456 UT on 24 Sept. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 30 Sept. 2016 UTC
based on 20 observations spanning 3 days
Optical observation  
  • reported from 7 observing codes during 3.1840 days: 104, 291, 474, 568, 807, 926, G96
  • designation assigned to Mt. Lemmon Survey observation at 0640 UT 26 Sept. 2016
  • last observed at 1105 UT on 29 Sept. 2016 by Mt. John Obs.
Notesrisk
Links  
2016 SR2   -   inbound
Approximate diameter18 meters (H=26.416)
Closest Earth approach3.77 LD at 0759 UT on 7 Oct. 2016
Inside ten LD of Earth30 Sept. until 14 Oct. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 30 Sept. 2016 UTC
based on 25 observations spanning 4 days
Optical observation  
  • reported from 7 observing codes during 4.0689 days: 474, 568, 807, 926, F51, K93, Y28
  • designation assigned to Pan-STARRS 1 observation at 1022 UT 25 Sept. 2016
  • last observed at 1201 UT on 29 Sept. 2016 by Mt. John Obs.
Notesrisk, NHATS target
Links  
2016 SL2   -   outbound
Approximate diameter27 meters (H=25.459)
Closest Earth approach2.38 LD at 0959 UT on 29 Sept. 2016
Inside Earth SOIduring 29 Sept. 2016
Inside ten LD of Earth27 Sept. until 1 Oct. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 27 Sept. 2016 UTC
based on 23 observations spanning 2 days
Optical observation  
  • reported from 5 observing codes during 2.4341 days: 104, 587, E23, G96, H21
  • designation assigned to Mt. Lemmon Survey observation at 0455 UT 25 Sept. 2016
  • last observed at 1520 UT on 27 Sept. 2016 by Arcadia Obs.
Notesrisk
Links  
2016 SK2   -     departed
Approximate diameter31 meters (H=25.187)
Closest Earth approach5.45 LD at 1429 UT on 18 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth15 to 21 Sept. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 30 Sept. 2016 UTC
based on 20 observations spanning 3 days
Optical observation  
  • reported from 3 observing codes during 3.2614 days: 568, G96, H21
  • designation assigned to Mt. Lemmon Survey observation at 0302 UT 25 Sept. 2016
  • last observed at 0918 UT on 28 Sept. 2016 by David Tholen's team on Mauna Kea
Notesrisk
Links  
2016 SJ2   -     departed
Approximate diameter17 meters (H=26.549)
Closest Earth approach4.83 LD at 0456 UT on 22 Sept. 2016
Inside ten LD of Earth18 to 25 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 27 Sept. 2016 UTC
based on 24 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 2.1103 days: 204, 246, G96, H21, J95, Z99
  • designation assigned to Mt. Lemmon Survey observation at 0239 UT 25 Sept. 2016
  • last observed at 0518 UT on 27 Sept. 2016 by ARO Westfield
Links  
2016 SH2   -     departed
Approximate diameter12 meters (H=27.177)
Closest Earth approach4.14 LD at 1854 UT on 22 Sept. 2016
Inside ten LD of Earth18 to 27 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 27 Sept. 2016 UTC
based on 19 observations spanning 2 days
Optical observation  
  • reported from 7 observing codes during 2.0965 days: 106, 203, 204, 246, G96, H21, J95
  • designation assigned to Mt. Lemmon Survey observation at 0239 UT 25 Sept. 2016
  • last observed at 0458 UT on 27 Sept. 2016 by ARO Westfield
NotesNHATS target
Links  
2016 SA2   -   outbound intruder
Approximate diameter8 meters (H=28.154)
Closest Earth approach0.80 LD at 0711 UT on 25 Sept. 2016
Inside Earth-Moon system1910 on 24 Sept. until 1912 UT on 25 Sept. 2016
Inside Earth SOI23 to 27 Sept. 2016
Inside ten LD of Earth16 Sept. until 3 Oct. 2016
Closest Moon approach1.71 LD at 0615 UT on 25 Sept. 2016
Data based onJPL SSD orbit solution #5 downloaded from JPL on 30 Sept. 2016 UTC
based on 35 observations spanning 4 days
Optical observation  
  • reported from 9 observing codes during 4.1041 days: 104, 568, 691, 703, 705, E23, F51, Q62, Z58
  • first observed at 0633 UT on 26 Sept. 2016 by the Catalina Sky Survey
  • designation assigned to Catalina Sky Survey observation at 0850 UT 26 Sept. 2016
  • last observed at 0903 UT on 30 Sept. 2016 by the Spacewatch 0.9m telescope
Notesrisk, NHATS target
Links  
2016 SZ1   -   outbound
Approximate diameter18 meters (H=26.392)
Closest Earth approach6.12 LD at 1646 UT on 29 Sept. 2016
Inside ten LD of Earth26 Sept. until 2 Oct. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 30 Sept. 2016 UTC
based on 30 observations spanning 5 days
Optical observation  
  • reported from 7 observing codes during 5.0396 days: 104, 160, 204, 246, 926, G96, J95
  • designation assigned to Mt. Lemmon Survey observation at 0937 UT 25 Sept. 2016
  • last observed at 1034 UT on 30 Sept. 2016 by Tenagra II Obs.
Links  
2016 SY1   -     departed
Approximate diameter18 meters (H=26.42)
Closest Earth approach3.31 LD at 1918 UT on 21 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 5 minutes
Inside ten LD of Earth19 to 24 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 27 Sept. 2016 UTC
based on 15 observations spanning one day
Optical observation  
  • reported from 2 observing codes during 20.633 hours: 104, G96
  • designation assigned to Mt. Lemmon Survey observation at 0925 UT 25 Sept. 2016
  • last observed at 0603 UT on 26 Sept. 2016 by the Mt. Lemmon Survey
Links  
2016 SX1   -   outbound
Approximate diameter7 meters (H=28.508)
Closest Earth approach2.18 LD at 1546 UT on 26 Sept. 2016
Inside Earth SOI25 to 28 Sept. 2016
Inside ten LD of Earth10 Sept. until 12 Oct. 2016
Closest Moon approach2.17 LD at 2335 UT on 23 Sept. 2016
Data based onJPL SSD orbit solution #6 downloaded from JPL on 30 Sept. 2016 UTC
based on 31 observations spanning 4 days
Optical observation  
  • reported from 7 observing codes during 4.4342 days: 104, 246, 461, 568, 703, G96, J95
  • designation assigned to Catalina Sky Survey observation at 0841 UT 25 Sept. 2016
  • last observed at 1906 UT on 29 Sept. 2016 by KLENOT
Notesrisk, NHATS target
Links  
2016 SW1   -   outbound
Approximate diameter7 meters (H=28.523)
Closest Earth approach1.34 LD at 0159 UT on 28 Sept. 2016
Inside Earth SOI26 to 29 Sept. 2016
Inside ten LD of Earth19 Sept. until 6 Oct. 2016
Closest Moon approach1.66 LD at 1353 UT on 28 Sept. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 28 Sept. 2016 UTC
based on 49 observations spanning 2 days
Optical observation  
  • reported from 7 observing codes during 2.8515 days: 104, 160, 461, 958, C77, G96, J95
  • designation assigned to Mt. Lemmon Survey observation at 0215 UT 25 Sept. 2016
  • last observed at 2242 UT on 27 Sept. 2016 by Great Shefford Obs.
NotesNHATS target
Links  
2016 SF1   -     departed Moon buzzer
Approximate diameter39 meters (H=24.696)
Closest Earth approach1.33 LD at 1430 UT on 10 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 9 minutes
Inside Earth SOI9 to 11 Sept. 2016
Inside ten LD of Earth5 to 15 Sept. 2016
Closest Moon approach0.61 LD at 0649 UT on 10 Sept. 2016
Inside one LD of Moon2034 on 9 Sept. until 1707 UT on 10 Sept. 2016
Data based onJPL SSD orbit solution #5 downloaded from JPL on 30 Sept. 2016 UTC
based on 20 observations spanning 7 days
Optical observation  
  • reported from 4 observing codes during 7.0342 days: 568, 807, 926, F51
  • designation assigned to Pan-STARRS 1 observation at 1332 UT 21 Sept. 2016
  • last observed at 1421 UT on 28 Sept. 2016 by David Tholen's team on Mauna Kea
Links  
2016 SJ   -     departed intruder
Approximate diameter5 meters (H=29.043)
Closest Earth approach0.39 LD at 1827 UT on 21 Sept. 2016
Inside Earth-Moon system1112 on 21 Sept. until 0142 UT on 22 Sept. 2016
Inside Earth SOI20 to 22 Sept. 2016
Inside ten LD of Earth18 to 25 Sept. 2016
Closest Moon approach1.14 LD at 2226 UT on 21 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 24 Sept. 2016 UTC
based on 28 observations spanning 2 days
Optical observation  
  • reported from 5 observing codes during 2.1994 days: 291, 461, 703, G96, J95
  • designation assigned to Mt. Lemmon Survey observation at 0656 UT 22 Sept. 2016
  • last observed at 1143 UT on 24 Sept. 2016 by the Spacewatch 1.8m telescope
Links  
2016 SG   -     departed
Approximate diameter16 meters (H=26.562)
Closest Earth approach2.34 LD at 0433 UT on 27 Sept. 2016
Inside Earth SOIduring 27 Sept. 2016
Inside ten LD of Earth24 to 29 Sept. 2016
Data based onJPL SSD orbit solution #4 downloaded from JPL on 28 Sept. 2016 UTC
based on 41 observations spanning 5 days
Optical observation  
  • reported from 7 observing codes during 4.9079 days: 246, 705, 926, C47, G96, H36, J95
  • designation assigned to Mt. Lemmon Survey observation at 0547 UT 22 Sept. 2016
  • last observed at 0335 UT on 27 Sept. 2016 by Tenagra II Obs.
Links  
2016 SC   -   outbound
Approximate diameter10 meters (H=27.57)
Closest Earth approach3.08 LD at 1056 UT on 25 Sept. 2016
Inside ten LD of Earth17 Sept. until 3 Oct. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 27 Sept. 2016 UTC
based on 89 observations spanning 4 days
Optical observation  
  • reported from 14 observing codes during 4.0398 days: 104, 204, 246, 461, 703, 926, 932, 958, C47, G96, H36, J95, L04, Z99
  • designation assigned to Catalina Sky Survey observation at 0342 UT 22 Sept. 2016
  • last observed at 0440 UT on 26 Sept. 2016 by McCarthy Obs.
NotesNHATS target
Links  
2016 RN41   -     departed intruder
Approximate diameter2 meters (H=31.034)
Closest Earth approach0.06 LD at 1441 UT on 11 Sept. 2016
Inside Earth-Moon system0454 on 11 Sept. until 0028 UT on 12 Sept. 2016
Inside Earth SOI10 to 12 Sept. 2016
Inside ten LD of Earth7 to 15 Sept. 2016
Closest Moon approach1.02 LD at 1245 UT on 11 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 25 Sept. 2016 UTC
based on 10 observations
Optical observation  
  • reported from 2 observing codes during 4.620 hours: 703, G96
  • designation assigned to Catalina Sky Survey observation at 0646 UT 11 Sept. 2016
  • last observed at 1123 UT on 11 Sept. 2016 by the Mt. Lemmon Survey
NotesNHATS target
Links  
2016 RM40   -     departed
Approximate diameter39 meters (H=24.67)
Closest Earth approach6.14 LD at 1121 UT on 8 Sept. 2016
Inside ten LD of Earth6 to 9 Sept. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 24 Sept. 2016 UTC
based on 37 observations spanning 12 days
Optical observation  
  • reported from 11 observing codes during 12.0168 days: 104, 203, 204, 246, 291, 703, 705, 807, G96, H21, J95
  • designation assigned to Catalina Sky Survey observation at 0448 UT 12 Sept. 2016
  • last observed at 0512 UT on 24 Sept. 2016 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2016 RK40   -     departed Moon buzzer
Approximate diameter11 meters (H=27.435)
Closest Earth approach1.35 LD at 2300 UT on 7 Sept. 2016
Inside Earth SOI7 to 8 Sept. 2016
Inside ten LD of Earth4 to 10 Sept. 2016
Closest Moon approach0.50 LD at 1836 UT on 7 Sept. 2016
Inside one LD of Moon1158 on 7 Sept. until 0114 UT on 8 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 Sept. 2016 UTC
based on 17 observations spanning 3 days
Optical observation  
  • reported from 3 observing codes during 2.9451 days: 291, G96, H21
  • designation assigned to Mt. Lemmon Survey observation at 0656 UT 11 Sept. 2016
  • last observed at 0537 UT on 14 Sept. 2016 by ARO Westfield
Links  
2016 RF34   -     departed
Approximate diameter44 meters (H=24.415)
Closest Earth approach5.67 LD at 1530 UT on 12 Sept. 2016
Inside ten LD of Earth8 to 17 Sept. 2016
Data based onJPL SSD orbit solution #5 downloaded from JPL on 21 Sept. 2016 UTC
based on 86 observations spanning 12 days
Optical observation  
  • reported from 14 observing codes during 11.8816 days: 104, 113, 204, 246, 703, B49, C47, F51, G96, H21, H36, J69, J95, L04
  • first observed at 1109 UT on 7 Sept. 2016 by Pan-STARRS 1
  • designation assigned to Catalina Sky Survey observation at 0743 UT 12 Sept. 2016
  • last observed at 0819 UT on 19 Sept. 2016 by ARO Westfield
Links  
2016 RE34   -     departed Moon buzzer
Approximate diameter7 meters (H=28.301)
Closest Earth approach1.19 LD at 0240 UT on 11 Sept. 2016
Inside Earth SOI9 to 13 Sept. 2016
Inside ten LD of Earth1 to 20 Sept. 2016
Closest Moon approach0.84 LD at 0843 UT on 10 Sept. 2016
Inside one LD of Moon1956 on 9 Sept. until 2144 UT on 10 Sept. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 20 Sept. 2016 UTC
based on 57 observations spanning 5 days
Optical observation  
  • reported from 10 observing codes during 4.9731 days: 104, 204, 246, 703, 705, G96, H21, H36, J95, K62
  • designation assigned to Catalina Sky Survey observation at 0743 UT 12 Sept. 2016
  • last observed at 0705 UT on 17 Sept. 2016 by Kristie Nault via Apache Point Obs.
NotesNHATS target
Links  
2016 RD34   -   outbound
Approximate diameter11 meters (H=27.36)
Closest Earth approach2.56 LD at 1431 UT on 7 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth1 Aug. until 14 Oct. 2016
Data based onJPL SSD orbit solution #9 downloaded from JPL on 30 Sept. 2016 UTC
based on 66 observations spanning 18 days
Optical observation  
  • reported from 9 observing codes during 18.1567 days: 104, 204, 246, 568, 705, G96, H21, H36, J95
  • designation assigned to Mt. Lemmon Survey observation at 1019 UT 11 Sept. 2016
  • last observed at 1404 UT on 29 Sept. 2016 by David Tholen's team on Mauna Kea
Notesrisk, NHATS target
Links  
2016 RV33   -     departed
Approximate diameter17 meters (H=26.559)
Closest Earth approach8.60 LD at 0016 UT on 5 Sept. 2016
Inside ten LD of Earth2 to 7 Sept. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 27 Sept. 2016 UTC
based on 29 observations spanning 14 days
Optical observation  
  • reported from 5 observing codes during 14.0260 days: 291, 695, G96, H21, J95
  • designation assigned to Mt. Lemmon Survey observation at 0548 UT 10 Sept. 2016
  • last observed at 0625 UT on 24 Sept. 2016 by ARO Westfield
Links  
2016 RN20   -     departed
Approximate diameter8 meters (H=28.209)
Closest Earth approach2.52 LD at 1656 UT on 8 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth26 Aug. until 22 Sept. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 11 Sept. 2016 UTC
based on 19 observations spanning one day
Optical observation  
  • reported from 3 observing codes during 1.5428 days: 104, G96, J95
  • designation assigned to Mt. Lemmon Survey observation at 0827 UT 9 Sept. 2016
  • last observed at 2129 UT on 10 Sept. 2016 by Great Shefford Obs.
NotesNHATS target
Links  
2016 RM20   -     departed
Approximate diameter19 meters (H=26.211)
Closest Earth approach6.22 LD at 1028 UT on 20 Sept. 2016
Inside ten LD of Earth14 to 26 Sept. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 18 Sept. 2016 UTC
based on 36 observations spanning 4 days
Optical observation  
  • reported from 5 observing codes during 3.9199 days: 104, 691, G96, H21, J95
  • designation assigned to Mt. Lemmon Survey observation at 0547 UT 9 Sept. 2016
  • last observed at 0352 UT on 13 Sept. 2016 by ARO Westfield
NotesNHATS target
Links  
2016 RP17   -     departed
Approximate diameter43 meters (H=24.494)
Closest Earth approach8.40 LD at 1535 UT on 1 Sept. 2016
Inside ten LD of Earth31 Aug. until 2 Sept. 2016
Data based onJPL SSD orbit solution #11 downloaded from JPL on 30 Sept. 2016 UTC
based on 63 observations spanning 23 days
Optical observation  
  • reported from 15 observing codes during 23.0666 days: 104, 204, 291, 474, 568, 691, 695, 703, 807, E23, G96, H21, I93, J22, R57
  • designation assigned to Catalina Sky Survey observation at 0826 UT 5 Sept. 2016
  • last observed at 1002 UT on 28 Sept. 2016 by David Tholen's team on Mauna Kea
Links  
2016 RR1   -     departed intruder
Approximate diameter9 meters (H=27.801)
Closest Earth approach0.34 LD at 1614 UT on 2 Sept. 2016
Inside Earth-Moon system0146 on 2 Sept. until 0642 UT on 3 Sept. 2016
Inside Earth SOI1 to 4 Sept. 2016
Inside ten LD of Earth27 Aug. until 9 Sept. 2016
Closest Moon approach1.14 LD at 0704 UT on 2 Sept. 2016
Data based onJPL SSD orbit solution #10 downloaded from JPL on 29 Sept. 2016 UTC
based on 33 observations spanning 23 days
Optical observation  
  • reported from 4 observing codes during 23.0703 days: 291, 568, G96, H21
  • designation assigned to Mt. Lemmon Survey observation at 1005 UT 4 Sept. 2016
  • last observed at 1147 UT on 27 Sept. 2016 by David Tholen's team on Mauna Kea
Notesrisk, NHATS target
Links  
2016 RB1   -     departed intruder
Approximate diameter9 meters (H=27.811)
Closest Earth approach0.11 LD at 1719 UT on 7 Sept. 2016
Inside Earth-Moon system0223 on 7 Sept. until 0815 UT on 8 Sept. 2016
Inside Earth SOI6 to 9 Sept. 2016
Inside ten LD of Earth1 to 14 Sept. 2016
Closest Moon approach0.75 LD at 0254 UT on 8 Sept. 2016
Inside one LD of Moon1805 on 7 Sept. until 1204 UT on 8 Sept. 2016
Data based onJPL SSD orbit solution #13 downloaded from JPL on 27 Sept. 2016 UTC
based on 154 observations spanning 2 days
Optical observation  
  • reported from 23 observing codes during 2.0704 days: 151, 204, 213, 461, 470, 568, 587, 703, A17, B49, C23, G34, G96, H21, H36, I89, I93, J95, Q62, U69, Y00, Y28, Z21
  • designation assigned to Mt. Lemmon Survey observation at 1109 UT 5 Sept. 2016
  • last observed at 1251 UT on 7 Sept. 2016 by David Tholen's team on Mauna Kea
Notesradar target, NHATS target
Links  
2016 QE45   -     distant
Approximate diameter142 meters (H=21.886)
Distance from Earth65.6 - 156.4 LD min-max during the observation period
Data based onJPL SSD orbit solution #9 downloaded from JPL on 30 Sept. 2016 UTC
based on 66 observations spanning 31 days
Optical observation  
  • reported from 8 observing codes during 30.7307 days: 033, 204, 291, 474, 691, 807, F51, H21
  • designation assigned to Pan-STARRS 1 observation at 1156 UT 30 Aug. 2016
  • last observed at 0528 UT on 30 Sept. 2016 by the Spacewatch 0.9m telescope
Notesprevious passage Oct. 2009 at 2.5 LD +/- 6.417 hours uncertainty (unobserved)
Links  
2016 QY1   -     departed
Approximate diameter75 meters (H=23.282)
Closest Earth approach7.25 LD at 0313 UT on 10 Aug. 2016 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth7 to 12 Aug. 2016
Data based onJPL SSD orbit solution #9 downloaded from JPL on 22 Sept. 2016 UTC
based on 75 observations spanning 26 days
Optical observation  
  • reported from 15 observing codes during 25.9448 days: 160, 204, 246, 291, 595, 807, B49, C43, D29, E23, G96, H21, J22, L04, Q64
  • designation assigned to Mt. Lemmon Survey observation at 0805 UT 26 Aug. 2016
  • last observed at 0645 UT on 21 Sept. 2016 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2016 FV13   -     distant
Approximate diameter21 meters (H=26.)
Distance from Earth228.0 - 236.1 LD min-max during the observation period
Data based onJPL SSD orbit solution #11 downloaded from JPL on 30 Sept. 2016 UTC
based on 87 observations spanning 183 days
Optical observation  
  • reported from one observing code during 4.9190 days: 309
  • first observed at 0538 UT on 24 Sept. 2016 by Marco Micheli via Cerro Paranal
  • last observed at 0342 UT on 29 Sept. 2016 by Marco Micheli via Cerro Paranal
Notesrisk
previous passage April 2016 at 1.81 LD and observation Sept. 2016
Links  
2009 UG   -   passing
Approximate diameter78 meters (H=23.2)
Closest Earth approach7.33 LD at 0530 UT on 30 Sept. 2016 - Note: JPL reports an approach uncertainty of +/- 1.147 days
Inside ten LD of Earth26 Sept. until 3 Oct. 2016
Data based onJPL SSD orbit solution #13 downloaded from JPL on 14 Sept. 2016 UTC (dated 13 June 2014 local)
based on 59 observations spanning 24 days
Optical observation  
    none recent
Notesprevious observation Oct.-Nov. 2009
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.