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Legend - object IDs plus links to more info

Data compiled at 2003 UTC on 3 Dec. 2016 for 41 known objects during a period of seven days from 30 Nov. to 6 Dec. 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
AQ10208023 1999 AQ10107.2 LD  distant
RD342016 RD3422.30 LD  departed
UG12013 UG1108.8 LD  distant
UK1712012 UK17125.6 LD  distant
VH2016 VH42.88 LD  departed
VH62016 VH676.62 LD+/- 3 minutes  departed
WA82016 WA810.59 LD  departed
WB82016 WB83.61 LDinbound
WC2016 WC63.77 LD  departed
WC22016 WC244.21 LD+/- 3 minutes  departed
WC102016 WC1015.14 LD+/- 4 minutes  departed
WD72016 WD74.18 LD+/- one minuteinbound
WF2016 WF18.24 LD  departed
WF12016 WF124.77 LD  departed
WF72016 WF712.37 LD  departed
WG2016 WG22.20 LD  departed
WG72016 WG72.61 LDoutbound
WH102016 WH105.71 LD+/- 4 minutesinbound
WN72016 WN714.51 LD  departed
WQ2016 WQ4.45 LDoutbound
WQ12016 WQ119.69 LD  departed
WQ32016 WQ31.48 LDoutbound
WQ82016 WQ87.85 LD+/- one minuteapproaching
WR82016 WR810.58 LD  departed
WT2016 WT31.23 LD  departed intruder
WT32016 WT327.69 LD  departed intruder
WT72016 WT711.43 LD  departed
WU2016 WU23.45 LD  departed
WU22016 WU28.26 LD  departed
WU72016 WU721.01 LD  departed
WV22016 WV210.34 LD  departed
WW22016 WW210.53 LD  departed intruder
WY2016 WY9.12 LD  departed Moon buzzer
WZ82016 WZ84.15 LDoutbound
XA2016 XA14.59 LD+/- 2 minutesapproaching
XE2016 XE1.59 LD+/- one minuteinbound
XG2016 XG3.75 LD  departed
XJ2016 XJ5.09 LDoutbound
XX1692015 XX16912.50 LDapproaching
YA2015 YA15.6 LD+/- 14 minutesapproaching
YQ12015 YQ140.9 LD+/- 20 minutesapproaching
DateTfc.Time
30 Nov. '16Rept. Line
1 Dec. '16Rept. Line
2 Dec. '16Rept. Line
3 Dec. '16Rept. Line
4 Dec. '16Rept. Line
5 Dec. '16 Line
6 Dec. '16 Line

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

2016 XJ   -   outbound
Approximate diameter11 meters (H=27.403)
Closest Earth approach5.09 LD at 2315 UT on 1 Dec. 2016
Inside ten LD of Earth23 Nov. until 10 Dec. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 3 Dec. 2016 UTC
based on 38 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 2.2317 days: 033, 474, 926, G96, H01, I52
  • designation assigned to Mt. Lemmon Survey observation at 0930 UT 1 Dec. 2016
  • last observed at 1504 UT on 3 Dec. 2016 by Mt. John Obs.
Links  
2016 XG   -     departed
Approximate diameter7 meters (H=28.39)
Closest Earth approach3.19 LD at 0557 UT on 29 Nov. 2016
Inside ten LD of Earth25 Nov. until 2 Dec. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 3 Dec. 2016 UTC
based on 29 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 1.7731 days: 033, G96, H01, I52, I93, J95
  • designation assigned to Mt. Lemmon Survey observation at 0607 UT 1 Dec. 2016
  • last observed at 0040 UT on 3 Dec. 2016 by Schwarzschild Obs.
Links  
2016 XE   -   inbound
Approximate diameter7 meters (H=28.315)
Closest Earth approach1.47 LD at 0842 UT on 7 Dec. 2016
Inside Earth SOI6 to 8 Dec. 2016
Inside ten LD of Earth1 to 13 Dec. 2016
Closest Moon approach1.26 LD at 0853 UT on 7 Dec. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 3 Dec. 2016 UTC
based on 35 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 2.2160 days: 033, G96, H01, I52, I93, J95
  • designation assigned to Mt. Lemmon Survey observation at 0546 UT 1 Dec. 2016
  • last observed at 1057 UT on 3 Dec. 2016 by the Mt. Lemmon Survey
Links  
2016 XA   -   approaching
Approximate diameter22 meters (H=25.921)
Closest Earth approach7.18 LD at 0129 UT on 12 Dec. 2016 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth9 to 14 Dec. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 3 Dec. 2016 UTC
based on 22 observations spanning 7 days
Optical observation  
  • reported from 5 observing codes during 6.9567 days: 705, F51, G96, I52, I93
  • first observed at 1201 UT on 26 Nov. 2016 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0550 UT 1 Dec. 2016
  • last observed at 1059 UT on 3 Dec. 2016 by the Mt. Lemmon Survey
Links  
2016 WH10   -   inbound
Approximate diameter21 meters (H=26.075)
Closest Earth approach5.71 LD at 1921 UT on 6 Dec. 2016 - Note: JPL reports an approach uncertainty of +/- 4 minutes
Inside ten LD of Earth3 to 10 Dec. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 2 Dec. 2016 UTC
based on 54 observations spanning one day
Optical observation  
  • reported from 10 observing codes during 1.0683 days: 203, 511, 926, 958, G96, H21, I52, I93, J95, K51
  • designation assigned to Mt. Lemmon Survey observation at 0654 UT 30 Nov. 2016
  • last observed at 0832 UT on 1 Dec. 2016 by Tenagra II Obs.
Links  
2016 WC10   -     departed
Approximate diameter12 meters (H=27.223)
Closest Earth approach2.88 LD at 0008 UT on 23 Nov. 2016 - Note: JPL reports an approach uncertainty of +/- 4 minutes
Inside ten LD of Earth18 to 27 Nov. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 1 Dec. 2016 UTC
based on 25 observations spanning 2 days
Optical observation  
  • reported from 6 observing codes during 1.7913 days: 033, 291, 926, F51, I52, J95
  • designation assigned to Pan-STARRS 1 observation at 1255 UT 28 Nov. 2016
  • last observed at 0754 UT on 30 Nov. 2016 by the Spacewatch 1.8m telescope
Links  
2016 WZ8   -   outbound
Approximate diameter7 meters (H=28.416)
Closest Earth approach4.15 LD at 1846 UT on 30 Nov. 2016
Inside ten LD of Earth22 Nov. until 9 Dec. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 1 Dec. 2016 UTC
based on 44 observations spanning 6 days
Optical observation  
  • reported from 8 observing codes during 6.1300 days: 033, 300, 926, G96, H01, H21, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0256 UT 25 Nov. 2016
  • last observed at 0603 UT on 1 Dec. 2016 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2016 WR8   -     departed
Approximate diameter11 meters (H=27.523)
Closest Earth approach6.49 LD at 2010 UT on 26 Nov. 2016
Inside ten LD of Earth23 to 29 Nov. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 30 Nov. 2016 UTC
based on 45 observations spanning 3 days
Optical observation  
  • reported from 6 observing codes during 3.2286 days: 033, 104, 204, 474, G96, I93
  • designation assigned to Mt. Lemmon Survey observation at 0724 UT 26 Nov. 2016
  • last observed at 1253 UT on 29 Nov. 2016 by Mt. John Obs.
Links  
2016 WQ8   -   approaching
Approximate diameter39 meters (H=24.693)
Closest Earth approach5.09 LD at 2040 UT on 8 Dec. 2016
Inside ten LD of Earth6 to 11 Dec. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 3 Dec. 2016 UTC
based on 36 observations spanning 7 days
Optical observation  
  • reported from 5 observing codes during 7.6015 days: C47, F51, G96, I52, I93
  • designation assigned to Mt. Lemmon Survey observation at 0755 UT 25 Nov. 2016
  • last observed at 2221 UT on 2 Dec. 2016 by Nonndorf Obs.
Links  
2016 WB8   -   inbound
Approximate diameter23 meters (H=25.814)
Closest Earth approach3.61 LD at 1745 UT on 5 Dec. 2016
Inside ten LD of Earth30 Nov. until 10 Dec. 2016
Data based onJPL SSD orbit solution #4 downloaded from JPL on 30 Nov. 2016 UTC
based on 38 observations spanning 5 days
Optical observation  
  • reported from 8 observing codes during 4.8876 days: 246, 807, 926, A17, G96, H01, J04, J95
  • designation assigned to Mt. Lemmon Survey observation at 0719 UT 25 Nov. 2016
  • last observed at 0437 UT on 30 Nov. 2016 by Tenagra II Obs.
NotesNHATS target
Links  
2016 WA8   -     departed
Approximate diameter38 meters (H=24.76)
Closest Earth approach8.31 LD at 2143 UT on 27 Nov. 2016
Inside ten LD of Earth26 to 29 Nov. 2016
Data based onJPL SSD orbit solution #4 downloaded from JPL on 30 Nov. 2016 UTC
based on 63 observations spanning 16 days
Optical observation  
  • reported from 13 observing codes during 15.6769 days: 033, 104, 204, 926, 958, C43, C77, F51, G96, I52, I93, J95, L04
  • first observed at 1112 UT on 14 Nov. 2016 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0603 UT 25 Nov. 2016
  • last observed at 0327 UT on 30 Nov. 2016 by Tenagra II Obs.
Links  
2016 WU7   -     departed
Approximate diameter32 meters (H=25.137)
Closest Earth approach4.85 LD at 0612 UT on 24 Nov. 2016
Inside ten LD of Earth21 to 26 Nov. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 1 Dec. 2016 UTC
based on 60 observations spanning 6 days
Optical observation  
  • reported from 13 observing codes during 5.9672 days: 104, 113, 204, 718, 807, 958, C77, G96, H01, I52, J95, L04, Q62
  • designation assigned to Mt. Lemmon Survey observation at 0426 UT 25 Nov. 2016
  • last observed at 0339 UT on 1 Dec. 2016 by Steward Obs. Mt. Lemmon Station
Links  
2016 WT7   -     departed
Approximate diameter22 meters (H=25.92)
Closest Earth approach9.51 LD at 1038 UT on 22 Nov. 2016
Inside ten LD of Earth18 to 26 Nov. 2016
Data based onJPL SSD orbit solution #5 downloaded from JPL on 1 Dec. 2016 UTC
based on 52 observations spanning 6 days
Optical observation  
  • reported from 9 observing codes during 5.9379 days: 474, 734, 807, G96, H01, H36, I52, J95, K92
  • designation assigned to Mt. Lemmon Survey observation at 0407 UT 25 Nov. 2016
  • last observed at 0238 UT on 1 Dec. 2016 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2016 WN7   -     departed
Approximate diameter9 meters (H=27.891)
Closest Earth approach4.19 LD at 0205 UT on 20 Nov. 2016
Inside ten LD of Earth13 to 26 Nov. 2016
Data based onJPL SSD orbit solution #4 downloaded from JPL on 2 Dec. 2016 UTC
based on 19 observations spanning 7 days
Optical observation  
  • reported from 5 observing codes during 6.9531 days: 705, 926, G96, I52, T12
  • designation assigned to Mt. Lemmon Survey observation at 0738 UT 24 Nov. 2016
  • last observed at 0630 UT on 1 Dec. 2016 by Kristie Nault via Apache Point Obs.
Notesrisk, NHATS target
Links  
2016 WG7   -   outbound
Approximate diameter21 meters (H=26.052)
Closest Earth approach2.61 LD at 1554 UT on 1 Dec. 2016
Inside ten LD of Earth25 Nov. until 8 Dec. 2016
Data based onJPL SSD orbit solution #6 downloaded from JPL on 1 Dec. 2016 UTC
based on 121 observations spanning 11 days
Optical observation  
  • reported from 18 observing codes during 10.6013 days: 203, 246, 926, 958, A48, A53, C47, F51, G96, H45, I52, J95, K74, K93, L04, Q62, V37, W86
  • first observed at 1355 UT on 20 Nov. 2016 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0857 UT 25 Nov. 2016
  • last observed at 0421 UT on 1 Dec. 2016 by Petit Jean Mtn. South Obs.
NotesNHATS target
Links  
2016 WF7   -     departed
Approximate diameter6 meters (H=28.665)
Closest Earth approach1.95 LD at 1536 UT on 21 Nov. 2016
Inside Earth SOI20 to 22 Nov. 2016
Inside ten LD of Earth14 to 28 Nov. 2016
Closest Moon approach1.36 LD at 0749 UT on 21 Nov. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 3 Dec. 2016 UTC
based on 25 observations spanning 7 days
Optical observation  
  • reported from 6 observing codes during 6.9583 days: 291, 705, 926, G96, I52, J04
  • designation assigned to Mt. Lemmon Survey observation at 0735 UT 24 Nov. 2016
  • last observed at 0635 UT on 1 Dec. 2016 by Kristie Nault via Apache Point Obs.
Notesrisk, NHATS target
Links  
2016 WD7   -   inbound
Approximate diameter12 meters (H=27.243)
Closest Earth approach4.18 LD at 0920 UT on 6 Dec. 2016
Inside ten LD of Earth22 Nov. until 21 Dec. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 30 Nov. 2016 UTC
based on 48 observations spanning 6 days
Optical observation  
  • reported from 7 observing codes during 6.2177 days: 246, 291, 926, G96, H01, I52, J04
  • designation assigned to Mt. Lemmon Survey observation at 0356 UT 24 Nov. 2016
  • last observed at 0910 UT on 30 Nov. 2016 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2016 WT3   -     departed intruder
Approximate diameter6 meters (H=28.618)
Closest Earth approach0.95 LD at 1253 UT on 21 Nov. 2016
Inside Earth-Moon system1029-1518 UT on 21 Nov. 2016
Inside Earth SOI20 to 22 Nov. 2016
Inside ten LD of Earth18 to 24 Nov. 2016
Closest Moon approach1.64 LD at 1423 UT on 21 Nov. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 25 Nov. 2016 UTC
based on 23 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 1.9023 days: 291, G96, H01, I52
  • designation assigned to Mt. Lemmon Survey observation at 0927 UT 23 Nov. 2016
  • last observed at 0707 UT on 25 Nov. 2016 by the Mt. Lemmon Survey
Links  
2016 WQ3   -   outbound
Approximate diameter6 meters (H=28.814)
Closest Earth approach1.48 LD at 1846 UT on 1 Dec. 2016
Inside Earth SOI29 Nov. until 4 Dec. 2016
Inside ten LD of Earth19 Nov. until 14 Dec. 2016
Closest Moon approach1.65 LD at 1741 UT on 2 Dec. 2016
Data based onJPL SSD orbit solution #4 downloaded from JPL on 1 Dec. 2016 UTC
based on 35 observations spanning 8 days
Optical observation  
  • reported from 5 observing codes during 7.7711 days: 926, G96, I52, J04, J95
  • designation assigned to Mt. Lemmon Survey observation at 0850 UT 23 Nov. 2016
  • last observed at 0321 UT on 1 Dec. 2016 by Tenagra II Obs.
NotesNHATS target
Links  
2016 WW2   -     departed intruder
Approximate diameter5 meters (H=29.043)
Closest Earth approach0.35 LD at 0245 UT on 25 Nov. 2016
Inside Earth-Moon system1624 on 24 Nov. until 1305 UT on 25 Nov. 2016
Inside Earth SOI24 to 26 Nov. 2016
Inside ten LD of Earth20 to 29 Nov. 2016
Closest Moon approach0.39 LD at 1358 UT on 25 Nov. 2016
Inside one LD of Moon0353 on 25 Nov. until 0004 UT on 26 Nov. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 25 Nov. 2016 UTC
based on 38 observations
Optical observation  
  • reported from 7 observing codes during 17.422 hours: 926, G96, H01, I52, J95, Q62, T12
  • designation assigned to Mt. Lemmon Survey observation at 0230 UT 24 Nov. 2016
  • last observed at 1955 UT on 24 Nov. 2016 by Great Shefford Obs.
Links  
2016 WV2   -     departed
Approximate diameter19 meters (H=26.277)
Closest Earth approach6.69 LD at 1021 UT on 25 Nov. 2016
Inside ten LD of Earth21 to 29 Nov. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 30 Nov. 2016 UTC
based on 42 observations spanning 7 days
Optical observation  
  • reported from 7 observing codes during 7.2034 days: 246, 926, C43, G96, I52, K88, L04
  • designation assigned to Mt. Lemmon Survey observation at 0723 UT 23 Nov. 2016
  • last observed at 1216 UT on 30 Nov. 2016 by Steward Obs. Mt. Lemmon Station
Links  
2016 WU2   -     departed
Approximate diameter11 meters (H=27.423)
Closest Earth approach1.46 LD at 0339 UT on 25 Nov. 2016
Inside Earth SOI24 to 26 Nov. 2016
Inside ten LD of Earth19 Nov. until 1 Dec. 2016
Closest Moon approach2.29 LD at 1322 UT on 25 Nov. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 25 Nov. 2016 UTC
based on 62 observations spanning one day
Optical observation  
  • reported from 10 observing codes during 1.5978 days: 246, 926, C43, C95, G96, I52, J95, K88, L04, Q62
  • designation assigned to Mt. Lemmon Survey observation at 0520 UT 23 Nov. 2016
  • last observed at 1941 UT on 24 Nov. 2016 by Great Shefford Obs.
NotesNHATS target
Links  
2016 WC2   -     departed
Approximate diameter12 meters (H=27.23)
Closest Earth approach3.35 LD at 1052 UT on 15 Nov. 2016 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth12 to 18 Nov. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 23 Nov. 2016 UTC
based on 23 observations spanning 3 days
Optical observation  
  • reported from 3 observing codes during 2.9334 days: 291, 926, G96
  • designation assigned to Mt. Lemmon Survey observation at 1017 UT 20 Nov. 2016
  • last observed at 0841 UT on 23 Nov. 2016 by the Spacewatch 1.8m telescope
Links  
2016 WQ1   -     departed
Approximate diameter9 meters (H=27.875)
Closest Earth approach2.34 LD at 0114 UT on 19 Nov. 2016
Inside Earth SOI18 to 19 Nov. 2016
Inside ten LD of Earth13 to 24 Nov. 2016
Data based onJPL SSD orbit solution #9 downloaded from JPL on 3 Dec. 2016 UTC
based on 57 observations spanning 12 days
Optical observation  
  • reported from 11 observing codes during 11.9021 days: 246, 291, 705, 926, G96, H21, I52, J04, K88, L04, T12
  • designation assigned to Mt. Lemmon Survey observation at 0947 UT 20 Nov. 2016
  • last observed at 0727 UT on 2 Dec. 2016 by Kristie Nault via Apache Point Obs.
Notesrisk
Links  
2016 WF1   -     departed
Approximate diameter10 meters (H=27.702)
Closest Earth approach4.93 LD at 1258 UT on 15 Nov. 2016
Inside ten LD of Earth10 to 20 Nov. 2016
Data based onJPL SSD orbit solution #3 downloaded from JPL on 2 Dec. 2016 UTC
based on 34 observations spanning 14 days
Optical observation  
  • reported from 6 observing codes during 14.0634 days: 705, 926, G96, H01, H21, J95
  • designation assigned to Mt. Lemmon Survey observation at 0516 UT 18 Nov. 2016
  • last observed at 0648 UT on 2 Dec. 2016 by Kristie Nault via Apache Point Obs.
NotesNHATS target
Links  
2016 WY   -     departed Moon buzzer
Approximate diameter5 meters (H=29.216)
Closest Earth approach1.73 LD at 1357 UT on 17 Nov. 2016
Inside Earth SOI15 to 19 Nov. 2016
Inside ten LD of Earth3 Nov. until 1 Dec. 2016
Closest Moon approach0.94 LD at 0215 UT on 17 Nov. 2016
Inside one LD of Moon1816 on 16 Nov. until 1016 UT on 17 Nov. 2016
Data based onJPL SSD orbit solution #8 downloaded from JPL on 29 Nov. 2016 UTC
based on 29 observations spanning 10 days
Optical observation  
  • reported from 6 observing codes during 9.9848 days: 291, G96, H01, H21, H36, T12
  • designation assigned to Mt. Lemmon Survey observation at 0614 UT 19 Nov. 2016
  • last observed at 0552 UT on 29 Nov. 2016 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk, NHATS target
Links  
2016 WU   -     departed
Approximate diameter12 meters (H=27.309)
Closest Earth approach2.04 LD at 1000 UT on 15 Nov. 2016
Inside Earth SOI14 to 16 Nov. 2016
Inside ten LD of Earth9 to 21 Nov. 2016
Closest Moon approach1.36 LD at 2053 UT on 15 Nov. 2016
Data based onJPL SSD orbit solution #6 downloaded from JPL on 3 Dec. 2016 UTC
based on 34 observations spanning 14 days
Optical observation  
  • reported from 8 observing codes during 13.8053 days: 705, G96, H01, H21, I52, J04, J95, T12
  • designation assigned to Mt. Lemmon Survey observation at 1109 UT 18 Nov. 2016
  • last observed at 0629 UT on 2 Dec. 2016 by Kristie Nault via Apache Point Obs.
Notesrisk, NHATS target
Links  
2016 WT   -     departed intruder
Approximate diameter4 meters (H=29.733)
Closest Earth approach0.50 LD at 0653 UT on 17 Nov. 2016
Inside Earth-Moon system2222 on 16 Nov. until 1524 UT on 17 Nov. 2016
Inside Earth SOI16 to 18 Nov. 2016
Inside ten LD of Earth13 to 21 Nov. 2016
Closest Moon approach0.89 LD at 1435 UT on 17 Nov. 2016
Inside one LD of Moon1018-1852 UT on 17 Nov. 2016
Data based onJPL SSD orbit solution #2 downloaded from JPL on 24 Nov. 2016 UTC
based on 28 observations spanning 4 days
Optical observation  
  • reported from 5 observing codes during 4.0690 days: 705, 926, G96, H21, T12
  • designation assigned to Mt. Lemmon Survey observation at 1025 UT 18 Nov. 2016
  • last observed at 1204 UT on 22 Nov. 2016 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk
Links  
2016 WQ   -   outbound
Approximate diameter26 meters (H=25.54)
Closest Earth approach4.45 LD at 1055 UT on 30 Nov. 2016
Inside ten LD of Earth27 Nov. until 3 Dec. 2016
Data based onJPL SSD orbit solution #6 downloaded from JPL on 1 Dec. 2016 UTC
based on 39 observations spanning 11 days
Optical observation  
  • reported from 8 observing codes during 11.2045 days: 204, 291, 474, 691, 926, G96, H01, J69
  • designation assigned to Mt. Lemmon Survey observation at 0719 UT 18 Nov. 2016
  • last observed at 1214 UT on 29 Nov. 2016 by Mt. John Obs.
Links  
2016 WG   -     departed
Approximate diameter74 meters (H=23.298)
Closest Earth approach4.20 LD at 2007 UT on 25 Nov. 2016
Inside ten LD of Earth24 to 27 Nov. 2016
Data based onJPL SSD orbit solution #10 downloaded from JPL on 28 Nov. 2016 UTC
based on 128 observations spanning 7 days
Optical observation  
  • reported from 20 observing codes during 7.4364 days: 246, 291, 691, 705, 926, C47, G96, H06, H36, I15, J69, J95, L04, L71, Q62, T12, W25, W55, Y28, Z80
  • designation assigned to Mt. Lemmon Survey observation at 1027 UT 18 Nov. 2016
  • last observed at 2055 UT on 25 Nov. 2016 by North Obs.
Notesrisk
Links  
2016 WF   -     departed
Approximate diameter14 meters (H=26.985)
Closest Earth approach5.71 LD at 2249 UT on 16 Nov. 2016
Inside ten LD of Earth10 to 23 Nov. 2016
Data based onJPL SSD orbit solution #5 downloaded from JPL on 25 Nov. 2016 UTC
based on 34 observations spanning 7 days
Optical observation  
  • reported from 6 observing codes during 7.0017 days: 705, 926, G96, H01, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0924 UT 18 Nov. 2016
  • last observed at 0927 UT on 25 Nov. 2016 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2016 WC   -     departed
Approximate diameter10 meters (H=27.678)
Closest Earth approach1.73 LD at 0407 UT on 17 Nov. 2016
Inside Earth SOI16 to 17 Nov. 2016
Inside ten LD of Earth15 to 19 Nov. 2016
Closest Moon approach1.08 LD at 0712 UT on 17 Nov. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 20 Nov. 2016 UTC
based on 24 observations spanning one day
Optical observation  
  • reported from 3 observing codes during 1.2862 days: 291, 926, G96
  • designation assigned to Mt. Lemmon Survey observation at 0503 UT 18 Nov. 2016
  • last observed at 1155 UT on 19 Nov. 2016 by the Spacewatch 1.8m telescope
Links  
2016 VH6   -     departed
Approximate diameter19 meters (H=26.248)
Closest Earth approach8.80 LD at 2154 UT on 30 Oct. 2016 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth28 Oct. until 1 Nov. 2016
Data based onJPL SSD orbit solution #1 downloaded from JPL on 20 Nov. 2016 UTC
based on 18 observations spanning 9 days
Optical observation  
  • reported from 4 observing codes during 9.0003 days: 705, 926, G96, H01
  • designation assigned to Mt. Lemmon Survey observation at 0657 UT 10 Nov. 2016
  • last observed at 0657 UT on 19 Nov. 2016 by Kristie Nault via Apache Point Obs.
NotesNHATS target
Links  
2016 VH   -     departed
Approximate diameter16 meters (H=26.686)
Closest Earth approach6.50 LD at 1602 UT on 28 Oct. 2016
Inside ten LD of Earth22 Oct. until 3 Nov. 2016
Data based onJPL SSD orbit solution #13 downloaded from JPL on 3 Dec. 2016 UTC
based on 89 observations spanning 27 days
Optical observation  
  • reported from 13 observing codes during 27.1600 days: 204, 291, 474, 691, 695, 703, 807, 926, H21, H36, I52, J95, T12
  • designation assigned to Catalina Sky Survey observation at 0656 UT 2 Nov. 2016
  • last observed at 1046 UT on 29 Nov. 2016 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk, NHATS target
Links  
2016 RD34   -     departed
Approximate diameter10 meters (H=27.6)
Closest Earth approach2.57 LD at 1432 UT on 7 Sept. 2016
Inside ten LD of Earth1 Aug. until 14 Oct. 2016
Data based onJPL SSD orbit solution #16 downloaded from JPL on 25 Nov. 2016 UTC
based on 76 observations spanning 73 days
Optical observation  
  • reported from 11 observing codes during 72.8906 days: 104, 204, 246, 568, 695, 705, G96, H21, H36, J95, T12
  • designation assigned to Mt. Lemmon Survey observation at 1019 UT 11 Sept. 2016
  • last observed at 0741 UT on 23 Nov. 2016 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk, NHATS target
Links  
2015 YQ1   -   approaching
Approximate diameter9 meters (H=28.)
Closest Earth approach6.17 LD at 1608 UT on 21 Dec. 2016 - Note: JPL reports an approach uncertainty of +/- 20 minutes
Inside ten LD of Earth18 to 24 Dec. 2016
Data based onJPL SSD orbit solution #7 downloaded from JPL on 28 Nov. 2016 UTC (dated 25 Feb. 2016 local)
based on 64 observations spanning 3 days
Optical observation  
    none recent
NotesNHATS target
previous passage Dec. 2015 at 1.45 LD
Links  
2015 YA   -   approaching
Approximate diameter11 meters (H=27.4)
Closest Earth approach9.61 LD at 1944 UT on 13 Dec. 2016 - Note: JPL reports an approach uncertainty of +/- 14 minutes
Inside ten LD of Earth12 to 15 Dec. 2016
Data based onJPL SSD orbit solution #6 downloaded from JPL on 28 Nov. 2016 UTC (dated 25 Feb. 2016 local)
based on 47 observations spanning 5 days
Optical observation  
    none recent
NotesNHATS target
previous passage Dec. 2014 at 5.9 LD +/- 17 mins. uncertainty (unobserved) and passage Dec. 2015 at 1.50 LD
Links  
2015 XX169   -   approaching
Approximate diameter11 meters (H=27.4)
Closest Earth approach7.43 LD at 2022 UT on 13 Dec. 2016
Inside ten LD of Earth9 to 18 Dec. 2016
Data based onJPL SSD orbit solution #4 downloaded from JPL on 28 Nov. 2016 UTC (dated 4 Jan. 2016 local)
based on 37 observations spanning 4 days
Optical observation  
    none recent
NotesNHATS target
previous passage Dec. 2015 at 8.41 LD
Links  
2013 UG1   -     distant
Approximate diameter117 meters (H=22.3)
Distance from Earth120.1 - 122.6 LD min-max during the observation period
Data based onJPL SSD orbit solution #17 downloaded from JPL on 2 Dec. 2016 UTC
based on 192 observations spanning 2013-2016
Optical observation  
  • reported from one observing code during 24.074 hours: 705
  • first observed at 0759 UT on 1 Dec. 2016 by Kristie Nault via Apache Point Obs.
  • last observed at 0804 UT on 2 Dec. 2016 by Kristie Nault via Apache Point Obs.
Notesprevious passage Oct. 2013 at 4.49 LD
Links  
2012 UK171   -     distant
Approximate diameter43 meters (H=24.5)
Distance from Earth24.1 - 30.8 LD min-max during the observation period
Data based onJPL SSD orbit solution #23 downloaded from JPL on 1 Dec. 2016 UTC
based on 180 observations spanning 2012-2016
Optical observation  
  • reported from 7 observing codes during 25.7728 days: 246, 291, 691, 926, G96, I52, T05
  • first observed at 1057 UT on 5 Nov. 2016 by Tenagra II Obs.
  • last observed at 0530 UT on 1 Dec. 2016 by the Spacewatch 0.9m telescope
NotesNHATS target
previous passage Oct. 2012 at 7.41 LD
Links  
208023 1999 AQ10   -     distant
Approximate diameter282 meters (H=20.4)
Distance from Earth54.2 - 111.2 LD min-max during the observation period
Data based onJPL SSD orbit solution #87 downloaded from JPL on 2 Dec. 2016 UTC
based on 308 observations spanning 1999-2016 including radar
Optical observation  
  • reported from 4 observing codes during 53.0104 days: 291, 691, 695, G96
  • first observed at 0222 UT on 10 Oct. 2016 by the Spacewatch 1.8m telescope
  • last observed at 0237 UT on 2 Dec. 2016 by the Spacewatch 0.9m telescope
NotesNHATS target
previous observation Oct.-Feb. 2008 and passage Feb. 2009 at 4.39 LD
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.