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Legend - object IDs plus links to more info

Data compiled at 2210 UTC on 9 July 2020 for twelve known objects during a period of seven days from 6 to 12 July 2020. Orange is for objects with a new JPL orbit solution (usually from new observation).

Chart
ID

Full ID
Period
Closest
Passage
Uncertainty

Status
BF252002 BF2515.54 LDapproaching
FD2019 FD85.4 LD  distant
JX12020 JX18.32 LD  departed
KS2020 KS96.70 LD  departed
LO2020 LO47.35 LD+/- 4 minutes  departed
ME12020 ME119.15 LD  departed
MF12020 MF119.23 LD  departed
MO2020 MO10.73 LD+/- 3 minutes  departed
MP12020 MP118.98 LD  departed
MZ2020 MZ44.29 LD  departed
NB2020 NB0.51 LDoutbound intruder
NY65441987 2010 NY6535.24 LD  departed
DateTfc.Time
6 July '20Rept. Line
7 July '20Rept. Line
8 July '20Rept. Line
9 July '20Rept. Line
10 July '20Rept. Line
11 July '20 Line
12 July '20 Line

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

2020 NB   -   outbound intruder
Approximate diameter19 meters (H=26.301)
Closest Earth approach0.46 LD at 2119 UTC on 5 July 2020
Inside Earth-Moon system0946 on 5 July until 0851 UTC on 6 July 2020
Inside Earth SOI4 to 7 July 2020
Inside ten LD of Earth30 June until 11 July 2020
Closest Moon approach1.27 LD at 2221 UTC on 5 July 2020
Data based onJPL SSD orbit solution #4 downloaded from JPL on 9 July 2020 UTC
based on 55 observations spanning 2 days
Optical observation  
  • reported from 11 observing codes during 2.0394 days: 203, 958, H21, H36, I41, J95, K83, L07, L34, V01, Z80
  • designation assigned to Zwicky Transient Facility observation at 0940 UTC 6 July 2020
  • last observed at 1037 UTC on 8 July 2020 by Mountainville Obs.
NotesNHATS target
Links  
2020 MP1   -     departed
Approximate diameter20 meters (H=26.103)
Closest Earth approach1.19 LD at 0203 UTC on 25 June 2020
Inside Earth SOI23 to 26 June 2020
Inside ten LD of Earth19 to 30 June 2020
Closest Moon approach1.99 LD at 1950 UTC on 24 June 2020
Data based onJPL SSD orbit solution #6 downloaded from JPL on 29 June 2020 UTC
based on 143 observations spanning 4 days
Optical observation  
  • reported from 26 observing codes during 3.8067 days: 104, 106, 160, 203, 204, 595, 718, 958, A48, C43, G34, G40, H21, I93, J95, K38, K63, K87, L01, L39, N88, T05, T08, U55, Z43, Z80
  • designation assigned to ATLAS Mauna Loa observation at 0650 UTC 21 June 2020
  • last observed at 0211 UTC on 25 June 2020 by Great Shefford Obs.
Notesrisk
Links  
2020 MF1   -     departed
Approximate diameter10 meters (H=27.579)
Closest Earth approach1.30 LD at 2112 UTC on 27 June 2020
Inside Earth SOI27 to 28 June 2020
Inside ten LD of Earth23 June until 2 July 2020
Closest Moon approach1.07 LD at 1716 UTC on 27 June 2020
Data based onJPL SSD orbit solution #2 downloaded from JPL on 3 July 2020 UTC
based on 15 observations spanning 9 days
Optical observation  
  • reported from 3 observing codes during 9.5832 days: 568, 595, F51
  • first observed at 0834 UTC on 17 June 2020 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 1 observation at 0818 UTC 21 June 2020
  • last observed at 2234 UTC on 26 June 2020 by Farra d'Isonzo Obs.
Links  
2020 ME1   -     departed
Approximate diameter19 meters (H=26.257)
Closest Earth approach1.97 LD at 0613 UTC on 28 June 2020
Inside Earth SOI27 to 28 June 2020
Inside ten LD of Earth24 June until 2 July 2020
Closest Moon approach1.10 LD at 0148 UTC on 28 June 2020
Data based onJPL SSD orbit solution #5 downloaded from JPL on 27 June 2020 UTC
based on 36 observations spanning 5 days
Optical observation  
  • reported from 7 observing codes during 5.5988 days: 104, 474, F51, H21, J04, T05, W33
  • designation assigned to Pan-STARRS 1 observation at 0718 UTC 21 June 2020
  • last observed at 2140 UTC on 26 June 2020 by San Marcello Pistoiese Obs.
Links  
2020 MZ   -     departed
Approximate diameter24 meters (H=25.785)
Closest Earth approach2.83 LD at 1024 UTC on 17 June 2020
Inside ten LD of Earth13 to 21 June 2020
Data based onJPL SSD orbit solution #5 downloaded from JPL on 29 June 2020 UTC
based on 98 observations spanning 8 days
Optical observation  
  • reported from 23 observing codes during 7.9314 days: 104, 130, 160, 203, 654, 858, 958, B37, B49, H36, I93, J04, J95, K63, K83, L01, N88, T08, U68, W33, W34, Z80, Z84
  • designation assigned to ATLAS Mauna Loa observation at 1128 UTC 20 June 2020
  • last observed at 0950 UTC on 28 June 2020 by Pomona College Table Mtn. Obs.
Links  
2020 MO   -     departed
Approximate diameter39 meters (H=24.714)
Closest Earth approach9.30 LD at 1204 UTC on 3 July 2020 - Note: JPL reports an approach uncertainty of +/- 3 minutes
Inside ten LD of Earth1 to 5 July 2020
Data based onJPL SSD orbit solution #1 downloaded from JPL on 20 June 2020 UTC
based on 37 observations spanning 24 days
Optical observation  
  • reported from 9 observing codes during 24.5600 days: 104, 203, B37, F51, F52, H21, I93, J04, L01
  • first observed at 0857 UTC on 26 May 2020 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 2 observation at 0732 UTC 18 June 2020
  • last observed at 2224 UTC on 19 June 2020 by ESA Optical Ground Station
Links  
2020 LO   -     departed
Approximate diameter15 meters (H=26.814)
Closest Earth approach1.90 LD at 0116 UTC on 4 June 2020 - Note: JPL reports an approach uncertainty of +/- 4 minutes
Inside Earth SOI3 to 5 June 2020
Inside ten LD of Earth28 May until 10 June 2020
Closest Moon approach2.13 LD at 1637 UTC on 4 June 2020
Data based onJPL SSD orbit solution #8 downloaded from JPL on 3 July 2020 UTC
based on 51 observations spanning 15 days
Optical observation  
Notesrisk, NHATS target
Links  
2020 KS   -     departed
Approximate diameter24 meters (H=25.774)
Closest Earth approach8.49 LD at 0526 UTC on 16 May 2020
Inside ten LD of Earth12 to 19 May 2020
Data based onJPL SSD orbit solution #13 downloaded from JPL on 30 June 2020 UTC
based on 114 observations spanning 44 days
Optical observation  
  • reported from 16 observing codes during 43.7675 days: 033, 204, 246, A17, B49, C47, F51, F52, G34, G96, I52, I93, K38, K87, T08, T14
  • first observed at 1148 UTC on 16 May 2020 by Pan-STARRS 1
  • designation assigned to Pan-STARRS 2 observation at 1115 UTC 18 May 2020
  • last observed at 0613 UTC on 29 June 2020 by UH/Tholen NEO Follow-Up CFH Telescope
Notesrisk, NHATS target
Links  
2020 JX1   -     departed
Approximate diameter59 meters (H=23.78)
Closest Earth approach3.31 LD at 0408 UTC on 29 June 2020
Inside ten LD of Earth20 June until 7 July 2020
Data based onJPL SSD orbit solution #14 downloaded from JPL on 24 June 2020 UTC
based on 69 observations spanning 41 days
Optical observation  
  • reported from 8 observing codes during 40.9679 days: 474, 568, F51, I52, K91, Q62, T05, T08
  • designation assigned to Pan-STARRS 1 observation at 0712 UTC 14 May 2020
  • last observed at 0625 UTC on 24 June 2020 by ATLAS Mauna Loa
NotesNHATS target
Links  
2019 FD   -     distant
Approximate diameter74 meters (H=23.3)
Closest Earth approach
Distance from Earth84.6 - 96.7 LD min-max during the observation period
Data based onJPL SSD orbit solution #27 downloaded from JPL on 4 July 2020 UTC
based on 257 observations spanning 2019-2020
Optical observation  
  • reported from 2 observing codes during 37.8157 days: H21, V06
  • first observed at 0758 UTC on 22 May 2020 by the Catalina Sky Survey Kuiper Telescope
  • last observed at 0333 UTC on 29 June 2020 by ARO Westfield
NotesNHATS target
previous passage March 2019 at 8.58 LD
Links  
441987 2010 NY65   -     departed
Approximate diameter178 meters (H=21.4)
Closest Earth approach9.78 LD at 0643 UTC on 24 June 2020
Inside ten LD of Earth23 to 25 June 2020
Data based onJPL SSD orbit solution #133 downloaded from JPL on 7 July 2020 UTC
based on 767 observations spanning 2010-2020 including radar
Optical observation  
  • reported from 7 observing codes during 12.4692 days: 160, 595, A16, L18, T05, T08, Z80
  • first observed at 2231 UTC on 23 June 2020 by Northolt Branch Obs.
  • last observed at 0946 UTC on 6 July 2020 by ATLAS Mauna Loa
Notesradar target
previous observation July-Aug. 2010, observation June-Aug. 2013, observation June-July 2014, observation June-Aug. 2015, observation June-Aug. 2016, passage June 2017 at 7.89 LD, passage June 2018 at 7.28 LD, and passage June 2019 at 7.63 LD
Links  
2002 BF25   -   approaching
Approximate diameter123 meters (H=22.2)
Closest Earth approach9.39 LD at 0255 UTC on 21 July 2020
Inside ten LD of Earth18 to 23 July 2020
Data based onJPL SSD orbit solution #41 downloaded from JPL on 24 June 2020 UTC
based on 117 observations spanning 2002-2020 including radar
Optical observation  
  • reported from 2 observing codes during 6.5398 days: 474, K93
  • first observed at 0001 UTC on 17 June 2020 by LCO Sutherland C
  • last observed at 1259 UTC on 23 June 2020 by Mt. John Obs.
NotesNHATS target
previous observation July 2010 and observation Jan. 2012
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.