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Legend - object IDs plus links to more info

Data compiled at 1820 UTC on 28 March 2017 for 44 known objects during a period of seven days from 25 to 31 March 2017. Orange is for objects with a new JPL orbit solution (usually from new observation).

Chart
ID

Full ID
Period
Closest
Passage
Uncertainty

Status
CS2017 CS110.41 LD+/- 2 minutesapproaching
DA382017 DA3844.83 LD  departed
DC362017 DC3668.07 LD  departed
DX342017 DX3455.82 LD  departed
EE42017 EE424.95 LD  departed
EF42017 EF432.82 LD  departed
EG32017 EG314.61 LD+/- 5 minutes  departed
EL42017 EL478.12 LD  departed
EZ22017 EZ237.94 LD  departed
FA32017 FA321.31 LD  departed
FB32017 FB333.7 LD  distant
FC652017 FC6527.47 LD  departed
FD32017 FD319.03 LD  departed intruder
FE902001 FE90297.9 LD  distant
FF32017 FF35.75 LD+/- one minuteoutbound
FJ2017 FJ7.27 LD  departed
FJ32017 FJ32.77 LD+/- 3 minutesoutbound
FK2017 FK10.09 LD  departed
FK32017 FK39.04 LDoutbound
FL632017 FL634.19 LDoutbound
FL642017 FL6413.6 LD+/- 8 minutes  departed
FM12017 FM19.27 LD  departed intruder
FM22017 FM215.76 LD+/- 2 minutes  departed
FN12017 FN116.65 LD  departed intruder
FQ632017 FQ6315.58 LD  departed
FR2017 FR30.10 LD+/- one minute  departed
FR632017 FR6310.92 LD  departed
FR912017 FR913.54 LDinbound
FS2017 FS26.23 LD  departed intruder
FS902017 FS9016.50 LD+/- 7 minutes  departed
FS912017 FS914.06 LDoutbound
FU22017 FU216.56 LD  departed
FU642017 FU6425.61 LD+/- 7 minutesapproaching
FU902017 FU909.90 LD  departed
FV2017 FV9.76 LDapproaching
FW2017 FW32.50 LD  departed
FW22017 FW225.68 LD  departed
FW902017 FW904.14 LDoutbound
FX902017 FX903.35 LD+/- 4 minutesapproaching
FZ22017 FZ22.75 LDoutbound
JO252014 JO25145.13 LDapproaching
SL361998 SL3629.21 LD  departed
TB572016 TB5746.46 LD  departed
TC252015 TC257.63 LD+/- 6 minutesoutbound
DateTfc.Time
25 March '17Rept. Line
26 March '17Rept. Line
27 March '17Rept. Line
28 March '17Rept. Line
29 March '17Rept. Line
30 March '17 Line
31 March '17 Line

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

2017 FS91   -   outbound
Approximate diameter19 meters (H=26.274)
Closest Earth approach3.94 LD at 1020 UT on 24 March 2017
Inside ten LD of Earth18 to 29 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 28 March 2017 UTC
based on 66 observations spanning one day
Optical observation  
  • reported from 13 observing codes during 1.0424 days: 246, 595, 703, 926, 958, C43, C47, G96, I52, I93, J04, J95, L04
  • designation assigned to Mt. Lemmon Survey observation at 1057 UT 26 March 2017
  • last observed at 1158 UT on 27 March 2017 by Tenagra II Obs.
Links  
2017 FR91   -   inbound
Approximate diameter13 meters (H=27.017)
Closest Earth approach3.54 LD at 2010 UT on 29 March 2017
Inside ten LD of Earth25 March until 3 April 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 28 March 2017 UTC
based on 54 observations spanning one day
Optical observation  
  • reported from 10 observing codes during 1.5523 days: 160, 246, 595, 703, 926, 958, G96, I52, I93, J95
  • designation assigned to Catalina Sky Survey observation at 0708 UT 26 March 2017
  • last observed at 2024 UT on 27 March 2017 by Castelmartini Obs.
Links  
2017 FX90   -   approaching
Approximate diameter20 meters (H=26.153)
Closest Earth approach2.37 LD at 1948 UT on 1 April 2017 - Note: JPL reports an approach uncertainty of +/- 4 minutes
Inside Earth SOIduring 1 April 2017
Inside ten LD of Earth29 March until 5 April 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 28 March 2017 UTC
based on 31 observations spanning 2 days
Optical observation  
Notesrisk
Links  
2017 FW90   -   outbound
Approximate diameter9 meters (H=27.927)
Closest Earth approach3.52 LD at 1642 UT on 22 March 2017
Inside ten LD of Earth12 March until 1 April 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 28 March 2017 UTC
based on 37 observations spanning 2 days
Optical observation  
  • reported from 8 observing codes during 2.5651 days: 033, 246, 703, G96, I52, I93, J04, J95
  • designation assigned to Mt. Lemmon Survey observation at 0816 UT 25 March 2017
  • last observed at 2150 UT on 27 March 2017 by ESA Optical Ground Station
Notesrisk, NHATS target
Links  
2017 FU90   -     departed
Approximate diameter30 meters (H=25.251)
Closest Earth approach7.38 LD at 0713 UT on 23 March 2017
Inside ten LD of Earth21 to 25 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 27 March 2017 UTC
based on 84 observations spanning 2 days
Optical observation  
  • reported from 16 observing codes during 1.9885 days: 033, 106, 246, 300, 595, 703, 926, 958, C43, E23, G96, I52, I93, J04, J95, K61
  • designation assigned to Mt. Lemmon Survey observation at 0652 UT 25 March 2017
  • last observed at 0635 UT on 27 March 2017 by the Mt. Lemmon Survey
Links  
2017 FS90   -     departed
Approximate diameter19 meters (H=26.259)
Closest Earth approach7.13 LD at 0447 UT on 18 March 2017 - Note: JPL reports an approach uncertainty of +/- 7 minutes
Inside ten LD of Earth14 to 21 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 27 March 2017 UTC
based on 32 observations spanning 2 days
Optical observation  
  • reported from 7 observing codes during 1.8006 days: 033, 595, 926, G96, I52, J04, J95
  • designation assigned to Mt. Lemmon Survey observation at 0537 UT 25 March 2017
  • last observed at 0050 UT on 27 March 2017 by Schwarzschild Obs.
NotesNHATS target
Links  
2017 FC65   -     departed
Approximate diameter24 meters (H=25.75)
Closest Earth approach5.55 LD at 0845 UT on 20 March 2017
Inside ten LD of Earth18 to 21 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 24 March 2017 UTC
based on 25 observations spanning 3 days
Optical observation  
  • reported from 6 observing codes during 2.7322 days: 926, F51, G96, H01, H21, I52
  • first observed at 1445 UT on 21 March 2017 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0940 UT 22 March 2017
  • last observed at 0820 UT on 24 March 2017 by Tenagra II Obs.
Links  
2017 FU64   -   approaching
Approximate diameter60 meters (H=23.744)
Closest Earth approach3.76 LD at 1918 UT on 6 April 2017 - Note: JPL reports an approach uncertainty of +/- 7 minutes
Inside ten LD of Earth4 to 8 April 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 28 March 2017 UTC
based on 33 observations spanning 7 days
Optical observation  
  • reported from 7 observing codes during 6.9956 days: 568, 691, F51, G96, H45, I52, V37
  • designation assigned to Pan-STARRS 1 observation at 0825 UT 21 March 2017
  • last observed at 0819 UT on 28 March 2017 by Petit Jean Mtn. South Obs.
Notesrisk
Links  
2017 FL64   -     departed
Approximate diameter6 meters (H=28.596)
Closest Earth approach5.01 LD at 2140 UT on 5 March 2017 - Note: JPL reports an approach uncertainty of +/- 8 minutes
Inside ten LD of Earth19 Feb. until 19 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 28 March 2017 UTC
based on 12 observations spanning 10 days
Optical observation  
  • reported from 2 observing codes during 9.9152 days: 291, F51
  • designation assigned to Pan-STARRS 1 observation at 0819 UT 18 March 2017
  • last observed at 0617 UT on 28 March 2017 by the Spacewatch 1.8m telescope
Notesrisk, NHATS target
Links  
2017 FR63   -     departed
Approximate diameter21 meters (H=26.045)
Closest Earth approach9.30 LD at 1310 UT on 20 March 2017
Inside ten LD of Earth17 to 23 March 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 27 March 2017 UTC
based on 40 observations spanning 5 days
Optical observation  
  • reported from 5 observing codes during 4.9329 days: 926, G96, H01, I52, Z84
  • designation assigned to Mt. Lemmon Survey observation at 0523 UT 22 March 2017
  • last observed at 0346 UT on 27 March 2017 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2017 FQ63   -     departed
Approximate diameter31 meters (H=25.204)
Closest Earth approach7.37 LD at 1856 UT on 17 March 2017
Inside ten LD of Earth14 to 21 March 2017
Data based onJPL SSD orbit solution #5 downloaded from JPL on 28 March 2017 UTC
based on 53 observations spanning 6 days
Optical observation  
  • reported from 7 observing codes during 6.1243 days: 300, 703, 926, 932, F51, G96, I52
  • designation assigned to Pan-STARRS 1 observation at 1042 UT 21 March 2017
  • last observed at 1341 UT on 27 March 2017 by Pan-STARRS 1
NotesNHATS target
Links  
2017 FL63   -   outbound
Approximate diameter21 meters (H=26.061)
Closest Earth approach4.19 LD at 2310 UT on 26 March 2017
Inside ten LD of Earth24 to 29 March 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 26 March 2017 UTC
based on 55 observations spanning 4 days
Optical observation  
  • reported from 8 observing codes during 4.0851 days: 474, 691, 926, G96, H01, H21, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0556 UT 21 March 2017
  • last observed at 0758 UT on 25 March 2017 by Mt. John Obs.
Links  
2017 FK3   -   outbound
Approximate diameter20 meters (H=26.197)
Closest Earth approach9.04 LD at 2048 UT on 27 March 2017
Inside ten LD of Earth25 to 30 March 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 27 March 2017 UTC
based on 36 observations spanning 6 days
Optical observation  
  • reported from 4 observing codes during 6.1388 days: 926, G96, I52, J95
  • designation assigned to Mt. Lemmon Survey observation at 0754 UT 20 March 2017
  • last observed at 1114 UT on 26 March 2017 by Tenagra II Obs.
Links  
2017 FJ3   -   outbound
Approximate diameter4 meters (H=29.893)
Closest Earth approach2.57 LD at 2058 UT on 22 March 2017 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth3 March until 12 April 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 22 March 2017 UTC
based on 16 observations spanning 2 days
Optical observation  
  • reported from 3 observing codes during 2.1570 days: 926, G96, J95
  • designation assigned to Mt. Lemmon Survey observation at 0748 UT 20 March 2017
  • last observed at 1134 UT on 22 March 2017 by Tenagra II Obs.
NotesNHATS target
Links  
2017 FF3   -   outbound
Approximate diameter15 meters (H=26.838)
Closest Earth approach5.75 LD at 0321 UT on 27 March 2017
Inside ten LD of Earth14 March until 9 April 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 25 March 2017 UTC
based on 37 observations spanning 5 days
Optical observation  
  • reported from 6 observing codes during 4.9716 days: 926, G96, I52, I93, J95, W25
  • designation assigned to Mt. Lemmon Survey observation at 0459 UT 20 March 2017
  • last observed at 0418 UT on 25 March 2017 by Steward Obs. Mt. Lemmon Station
NotesNHATS target
Links  
2017 FD3   -     departed intruder
Approximate diameter10 meters (H=27.69)
Closest Earth approach0.47 LD at 1427 UT on 17 March 2017
Inside Earth-Moon system0613-2241 UT on 17 March 2017
Inside Earth SOI16 to 18 March 2017
Inside ten LD of Earth13 to 21 March 2017
Closest Moon approach0.92 LD at 2206 UT on 17 March 2017
Inside one LD of Moon1835 on 17 March until 0138 UT on 18 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 27 March 2017 UTC
based on 28 observations spanning 8 days
Optical observation  
  • reported from 5 observing codes during 8.0155 days: 291, 703, 807, G96, W25
  • designation assigned to Catalina Sky Survey observation at 1032 UT 19 March 2017
  • last observed at 1054 UT on 27 March 2017 by the Spacewatch 1.8m telescope
Notesrisk
Links  
2017 FB3   -     distant
Approximate diameter24 meters (H=25.708)
Distance from Earth27.5 - 34.1 LD min-max during the observation period
Data based onJPL SSD orbit solution #2 downloaded from JPL on 25 March 2017 UTC
based on 20 observations spanning 6 days
Optical observation  
  • reported from 5 observing codes during 5.9394 days: 291, 691, F51, G96, K91
  • designation assigned to Mt. Lemmon Survey observation at 0813 UT 19 March 2017
  • last observed at 0646 UT on 25 March 2017 by the Spacewatch 0.9m telescope
NotesNHATS target
previous passage Sept. 2015 at 8.8 LD +/- 2.017 hours uncertainty (unobserved)
Links  
2017 FA3   -     departed
Approximate diameter8 meters (H=28.109)
Closest Earth approach1.72 LD at 1450 UT on 17 March 2017
Inside Earth SOI17 to 18 March 2017
Inside ten LD of Earth14 to 21 March 2017
Closest Moon approach1.59 LD at 1822 UT on 17 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 25 March 2017 UTC
based on 22 observations spanning 5 days
Optical observation  
  • reported from 4 observing codes during 5.0631 days: 291, G96, H01, T12
  • designation assigned to Mt. Lemmon Survey observation at 0813 UT 19 March 2017
  • last observed at 0944 UT on 24 March 2017 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk
Links  
2017 FZ2   -   outbound
Approximate diameter16 meters (H=26.692)
Closest Earth approach1.70 LD at 2041 UT on 23 March 2017
Inside Earth SOI22 to 24 March 2017
Inside ten LD of Earth18 to 29 March 2017
Closest Moon approach2.49 LD at 0638 UT on 24 March 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 25 March 2017 UTC
based on 149 observations spanning 5 days
Optical observation  
  • reported from 16 observing codes during 4.9481 days: 300, 474, 703, 926, 932, 958, G48, G96, H21, I93, J95, L04, Q62, T08, T12, W25
  • designation assigned to Mt. Lemmon Survey observation at 0813 UT 19 March 2017
  • last observed at 0658 UT on 24 March 2017 by UH/Tholen NEO Follow-Up 2.24m Telescope
Notesrisk, NHATS target
previous passage March 2016 at 7.58 LD +/- 3 mins. uncertainty (unobserved)
Links  
2017 FW2   -     departed
Approximate diameter25 meters (H=25.643)
Closest Earth approach5.00 LD at 2354 UT on 16 March 2017
Inside ten LD of Earth14 to 19 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 23 March 2017 UTC
based on 53 observations spanning 3 days
Optical observation  
  • reported from 12 observing codes during 2.9423 days: 300, 691, 703, 926, B74, C77, H01, H21, I93, J95, L04, W25
  • designation assigned to Catalina Sky Survey observation at 0752 UT 19 March 2017
  • last observed at 0628 UT on 22 March 2017 by the Spacewatch 0.9m telescope
Links  
2017 FU2   -     departed
Approximate diameter9 meters (H=27.791)
Closest Earth approach7.26 LD at 2047 UT on 16 March 2017
Inside ten LD of Earth13 to 20 March 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 22 March 2017 UTC
based on 25 observations spanning 2 days
Optical observation  
  • reported from 4 observing codes during 2.2805 days: 474, G96, H01, J95
  • designation assigned to Mt. Lemmon Survey observation at 0629 UT 19 March 2017
  • last observed at 1313 UT on 21 March 2017 by Mt. John Obs.
Links  
2017 FM2   -     departed
Approximate diameter28 meters (H=25.417)
Closest Earth approach7.00 LD at 0005 UT on 6 March 2017 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth24 Feb. until 15 March 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 22 March 2017 UTC
based on 12 observations spanning 4 days
Optical observation  
  • reported from 3 observing codes during 4.4407 days: 104, F51, J95
  • designation assigned to Pan-STARRS 1 observation at 1143 UT 16 March 2017
  • last observed at 2218 UT on 20 March 2017 by Great Shefford Obs.
NotesNHATS target
Links  
2017 FN1   -     departed intruder
Approximate diameter3 meters (H=30.599)
Closest Earth approach0.16 LD at 2101 UT on 20 March 2017
Inside Earth-Moon system1510 on 20 March until 0251 UT on 21 March 2017
Inside Earth SOI20 to 21 March 2017
Inside ten LD of Earth18 to 23 March 2017
Closest Moon approach1.17 LD at 2102 UT on 20 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 22 March 2017 UTC
based on 18 observations
Optical observation  
  • reported from 2 observing codes during 11.347 hours: G96, J95
  • designation assigned to Mt. Lemmon Survey observation at 0832 UT 20 March 2017
  • last observed at 1953 UT on 20 March 2017 by Great Shefford Obs.
Notesrisk
Links  
2017 FM1   -     departed intruder
Approximate diameter4 meters (H=29.518)
Closest Earth approach0.33 LD at 2237 UT on 20 March 2017
Inside Earth-Moon system1247 on 20 March until 0828 UT on 21 March 2017
Inside Earth SOI19 to 21 March 2017
Inside ten LD of Earth16 to 25 March 2017
Closest Moon approach1.16 LD at 0050 UT on 21 March 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 21 March 2017 UTC
based on 14 observations
Optical observation  
  • reported from 3 observing codes during 13.270 hours: 703, G96, J95
  • designation assigned to Catalina Sky Survey observation at 0712 UT 20 March 2017
  • last observed at 2029 UT on 20 March 2017 by Great Shefford Obs.
Links  
2017 FW   -     departed
Approximate diameter17 meters (H=26.5)
Closest Earth approach4.44 LD at 2156 UT on 14 March 2017
Inside ten LD of Earth12 to 17 March 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 March 2017 UTC
based on 27 observations spanning 3 days
Optical observation  
  • reported from 5 observing codes during 3.0947 days: 474, 807, 926, G96, I93
  • designation assigned to Mt. Lemmon Survey observation at 0525 UT 18 March 2017
  • last observed at 0741 UT on 21 March 2017 by Tenagra II Obs.
Notesprevious passage Oct. 2011 at 3.2 LD +/- 1.931 days uncertainty (unobserved)
Links  
2017 FV   -   approaching
Approximate diameter47 meters (H=24.3)
Closest Earth approach8.99 LD at 0340 UT on 2 April 2017
Inside ten LD of Earth31 March until 3 April 2017
Data based onJPL SSD orbit solution #10 downloaded from JPL on 28 March 2017 UTC
based on 63 observations spanning 11 days
Optical observation  
  • reported from 10 observing codes during 10.9813 days: 246, 703, 705, 926, F51, G96, H01, I52, J04, T12
  • designation assigned to Mt. Lemmon Survey observation at 0621 UT 17 March 2017
  • last observed at 0555 UT on 28 March 2017 by the Catalina Sky Survey
Notesrisk, radar target
Links  
2017 FS   -     departed intruder
Approximate diameter5 meters (H=28.997)
Closest Earth approach0.28 LD at 0332 UT on 19 March 2017
Inside Earth-Moon system2224 on 18 March until 0841 UT on 19 March 2017
Inside Earth SOI18 to 19 March 2017
Inside ten LD of Earth16 to 21 March 2017
Closest Moon approach1.17 LD at 0214 UT on 19 March 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 19 March 2017 UTC
based on 24 observations spanning one day
Optical observation  
  • reported from 5 observing codes during 1.6722 days: 204, 291, 705, G96, H01
  • designation assigned to Mt. Lemmon Survey observation at 0537 UT 17 March 2017
  • last observed at 2145 UT on 18 March 2017 by Schiaparelli Obs.
Links  
2017 FR   -     departed
Approximate diameter28 meters (H=25.4)
Closest Earth approach5.82 LD at 0228 UT on 5 March 2017
Inside ten LD of Earth27 Feb. until 10 March 2017
Data based onJPL SSD orbit solution #8 downloaded from JPL on 28 March 2017 UTC
based on 71 observations spanning 10 days
Optical observation  
  • reported from 13 observing codes during 10.0229 days: 474, 691, 807, 926, B74, G96, H01, H21, I52, K65, K93, T12, W85
  • designation assigned to Mt. Lemmon Survey observation at 0536 UT 17 March 2017
  • last observed at 0609 UT on 27 March 2017 by the Mt. Lemmon Survey
NotesNHATS target
previous passage Sept. 2015 at 9.2 LD +/- 55 mins. uncertainty (unobserved)
Links  
2017 FK   -     departed
Approximate diameter11 meters (H=27.4)
Closest Earth approach1.74 LD at 1159 UT on 20 March 2017
Inside Earth SOI19 to 21 March 2017
Inside ten LD of Earth16 to 24 March 2017
Closest Moon approach1.89 LD at 1329 UT on 20 March 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 21 March 2017 UTC
based on 48 observations spanning 3 days
Optical observation  
  • reported from 14 observing codes during 2.9832 days: 104, 160, 204, 300, 703, 926, B74, G96, H01, K65, K92, Q62, W25, Z84
  • designation assigned to Mt. Lemmon Survey observation at 0535 UT 17 March 2017
  • last observed at 0511 UT on 20 March 2017 by RMS Obs.
NotesNHATS target
Links  
2017 FJ   -     departed
Approximate diameter8 meters (H=28.1)
Closest Earth approach1.98 LD at 1501 UT on 21 March 2017
Inside Earth SOI20 to 22 March 2017
Inside ten LD of Earth16 to 26 March 2017
Closest Moon approach1.56 LD at 2146 UT on 21 March 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 22 March 2017 UTC
based on 54 observations spanning 4 days
Optical observation  
  • reported from 9 observing codes during 4.2666 days: 705, 926, F51, G96, H01, H36, J95, K92, W25
  • designation assigned to Mt. Lemmon Survey observation at 0507 UT 17 March 2017
  • last observed at 1131 UT on 21 March 2017 by Tenagra II Obs.
NotesNHATS target
Links  
2017 EL4   -     departed
Approximate diameter28 meters (H=25.434)
Closest Earth approach8.22 LD at 2132 UT on 4 March 2017
Inside ten LD of Earth3 to 6 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 19 March 2017 UTC
based on 45 observations spanning 9 days
Optical observation  
  • reported from 6 observing codes during 8.8929 days: 291, 705, G96, H01, H21, I52
  • designation assigned to Mt. Lemmon Survey observation at 0949 UT 8 March 2017
  • last observed at 0715 UT on 17 March 2017 by Kristie Nault via Apache Point Obs.
Links  
2017 EF4   -     departed
Approximate diameter19 meters (H=26.266)
Closest Earth approach7.46 LD at 2233 UT on 6 March 2017
Inside ten LD of Earth3 to 10 March 2017
Data based onJPL SSD orbit solution #2 downloaded from JPL on 19 March 2017 UTC
based on 30 observations spanning 9 days
Optical observation  
  • reported from 3 observing codes during 9.1143 days: 705, G96, H01
  • designation assigned to Mt. Lemmon Survey observation at 0519 UT 8 March 2017
  • last observed at 0804 UT on 17 March 2017 by Kristie Nault via Apache Point Obs.
Links  
2017 EE4   -     departed
Approximate diameter35 meters (H=24.898)
Closest Earth approach7.04 LD at 0630 UT on 16 March 2017
Inside ten LD of Earth13 to 18 March 2017
Data based onJPL SSD orbit solution #4 downloaded from JPL on 19 March 2017 UTC
based on 65 observations spanning 12 days
Optical observation  
  • reported from 9 observing codes during 11.5944 days: 104, 160, 204, 926, F51, H01, I52, J95, W25
  • designation assigned to Pan-STARRS 1 observation at 1208 UT 4 March 2017
  • last observed at 0223 UT on 16 March 2017 by Schiaparelli Obs.
Links  
2017 EG3   -     departed
Approximate diameter18 meters (H=26.38)
Closest Earth approach4.38 LD at 1056 UT on 17 March 2017 - Note: JPL reports an approach uncertainty of +/- 5 minutes
Inside ten LD of Earth12 to 22 March 2017
Data based onJPL SSD orbit solution #1 downloaded from JPL on 10 March 2017 UTC
based on 22 observations spanning 2 days
Optical observation  
  • reported from 2 observing codes during 2.0216 days: G96, H01
  • first observed at 0524 UT on 7 March 2017 by the Mt. Lemmon Survey
  • designation assigned to Mt. Lemmon Survey observation at 0609 UT 7 March 2017
  • last observed at 0555 UT on 9 March 2017 by the Mt. Lemmon Survey
NotesNHATS target
Links  
2017 EZ2   -     departed
Approximate diameter32 meters (H=25.103)
Closest Earth approach5.86 LD at 2036 UT on 8 March 2017
Inside ten LD of Earth5 to 12 March 2017
Data based onJPL SSD orbit solution #3 downloaded from JPL on 22 March 2017 UTC
based on 123 observations spanning 15 days
Optical observation  
  • reported from 26 observing codes during 14.5834 days: 104, 108, 160, 204, 300, 587, 595, 703, 807, 926, 958, A29, B49, C77, G37, G96, H01, H06, H21, H36, I52, J95, K61, Q62, W25, Z99
  • designation assigned to Catalina Sky Survey observation at 1055 UT 5 March 2017
  • last observed at 0055 UT on 20 March 2017 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2017 DA38   -     departed
Approximate diameter35 meters (H=24.9)
Closest Earth approach7.29 LD at 0502 UT on 27 Feb. 2017
Inside ten LD of Earth23 Feb. until 3 March 2017
Data based onJPL SSD orbit solution #9 downloaded from JPL on 28 March 2017 UTC
based on 144 observations spanning 30 days
Optical observation  
  • reported from 26 observing codes during 30.0424 days: 104, 160, 204, 300, 585, 703, 718, 807, 900, 958, A29, B49, C47, C77, D35, H01, H21, H45, I52, I93, K33, K63, L04, Q62, W25, Z84
  • designation assigned to Catalina Sky Survey observation at 0653 UT 25 Feb. 2017
  • last observed at 0754 UT on 27 March 2017 by Robert Holmes via Cerro Tololo Inter-American Obs.
Links  
2017 DC36   -     departed
Approximate diameter129 meters (H=22.1)
Closest Earth approach4.23 LD at 1205 UT on 18 Feb. 2017
Inside ten LD of Earth13 to 23 Feb. 2017
Data based onJPL SSD orbit solution #23 downloaded from JPL on 28 March 2017 UTC
based on 325 observations spanning 33 days
Optical observation  
  • reported from 39 observing codes during 33.4757 days: 104, 107, 160, 204, 215, 300, 474, 703, 807, 900, 926, 958, C23, C27, C43, D29, G34, G40, G45, G96, H01, H21, H45, I52, J22, J95, K30, K61, K83, K92, L04, O75, Q62, T05, T08, W25, W88, Y00, Z45
  • first observed at 1229 UT on 22 Feb. 2017 by ATLAS Mauna Loa
  • designation assigned to ATLAS Haleakala observation at 1147 UT 23 Feb. 2017
  • last observed at 2353 UT on 27 March 2017 by Robert Holmes via Cerro Tololo Inter-American Obs.
NotesNHATS target
Links  
2017 DX34   -     departed
Approximate diameter31 meters (H=25.2)
Closest Earth approach5.06 LD at 0831 UT on 10 Feb. 2017
Inside ten LD of Earth3 to 17 Feb. 2017
Data based onJPL SSD orbit solution #8 downloaded from JPL on 27 March 2017 UTC
based on 37 observations spanning 33 days
Optical observation  
  • reported from 8 observing codes during 32.8849 days: 291, 300, 568, 691, 705, 807, F51, I52
  • designation assigned to Pan-STARRS 1 observation at 1404 UT 22 Feb. 2017
  • last observed at 1119 UT on 27 March 2017 by the Spacewatch 1.8m telescope
NotesNHATS target
Links  
2017 CS   -   approaching
Approximate diameter446 meters (H=19.4)
Closest Earth approach7.93 LD at 1545 UT on 29 May 2017 - Note: JPL reports an approach uncertainty of +/- 2 minutes
Inside ten LD of Earth26 May until 1 June 2017
Data based onJPL SSD orbit solution #26 downloaded from JPL on 28 March 2017 UTC
based on 170 observations spanning 67 days
Optical observation  
  • reported from 15 observing codes during 66.6694 days: 291, 691, 695, 703, 807, B67, F51, G45, G96, H21, H45, K91, Q62, W85, W88
  • first observed at 1339 UT on 20 Jan. 2017 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 1205 UT 2 Feb. 2017
  • last observed at 0543 UT on 28 March 2017 by Petit Jean Mtn. South Obs.
Notesradar target
Links  
2016 TB57   -     departed
Approximate diameter21 meters (H=26.)
Closest Earth approach5.24 LD at 0419 UT on 31 Oct. 2016
Inside ten LD of Earth17 Oct. until 14 Nov. 2016
Data based onJPL SSD orbit solution #27 downloaded from JPL on 27 March 2017 UTC
based on 132 observations spanning 2016-2017
Optical observation  
  • reported from 18 observing codes during 195.7882 days: 104, 204, 291, 691, 695, 703, 705, 926, F51, G96, H21, H36, I52, J04, J95, T04, T12, Y28
  • first observed at 1237 UT on 12 Sept. 2016 by Pan-STARRS 1
  • designation assigned to Mt. Lemmon Survey observation at 0535 UT 13 Oct. 2016
  • last observed at 0732 UT on 27 March 2017 by the Spacewatch 1.8m telescope
Notesrisk, radar target, NHATS target
Links  
2015 TC25   -   outbound
Approximate diameter4 meters (H=29.5)
Closest Earth approach7.63 LD at 1449 UT on 26 March 2017 - Note: JPL reports an approach uncertainty of +/- 6 minutes
Inside ten LD of Earth17 March until 4 April 2017
Data based onJPL SSD orbit solution #10 downloaded from JPL on 4 Feb. 2017 UTC (dated 28 Oct. 2015 local)
based on 29 observations spanning 7 days including radar
Optical observation  
    none recent
Notesrisk, radar target, NHATS target
previous passage Oct. 2015 at 0.29 LD
Links  
2014 JO25   -   approaching
Approximate diameter812 meters (H=18.1)
Closest Earth approach4.57 LD at 1223 UT on 19 April 2017
Inside ten LD of Earth18 to 20 April 2017
Data based onJPL SSD orbit solution #21 downloaded from JPL on 4 Feb. 2017 UTC (dated 7 Sept. 2016 local)
based on 174 observations spanning 2011-2016
Optical observation  
    none recent
Notesradar target
previous observation May 2011, observation May-June 2014, and observation Sept. 2016
Links  
2001 FE90   -     distant
Approximate diameter245 meters (H=20.7)
Distance from Earth288.9 - 294.3 LD min-max during the observation period
Data based onJPL SSD orbit solution #55 downloaded from JPL on 18 March 2017 UTC
based on 290 observations spanning 2001-2017 including radar
Optical observation  
  • reported from one observing code during 24.9856 days: F51
  • first observed at 0713 UT on 21 Feb. 2017 by Pan-STARRS 1
  • last observed at 0652 UT on 18 March 2017 by Pan-STARRS 1
Notesprevious passage June 2009 at 6.99 LD
Links  
1998 SL36   -     departed
Approximate diameter295 meters (H=20.3)
Closest Earth approach8.34 LD at 1329 UT on 16 March 2017
Inside ten LD of Earth14 to 18 March 2017
Data based onJPL SSD orbit solution #33 downloaded from JPL on 26 March 2017 UTC (dated 24 March 2017 local)
based on 102 observations spanning 1998-2017 including radar
Optical observation  
Notesradar target
previous observation Aug.-Dec. 2016
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.