85989 1999JD6
Last update: 2021-09-17 23:50 UTC
Observational Information
  • Arc Length
  • Unobserved
Arc Information
Value
Unit
Source
Arc Length
Value
10979
Unit
days
Source
[1]
Unobserved
Value
431
Unit
days
Source
[1]
Astrometry Summary
  • RMS of Residuals
  • First Observation
  • Last Observation
  • Total Optical Observations (Discarded)
Optical
Value
Unit
Source
RMS of Residuals
Value
0.40027
Unit
arcseconds
Source
[1]
First Observation
Value
1990-06-22.26389
Unit
-
Source
[2]
Last Observation
Value
2020-07-13.624002
Unit
-
Source
[2]
Total Optical Observations (Discarded)
Value
2965 (22)
Unit
-
Source
[1]
Radar Summary
  • First Observation
  • Last Observation
  • Delay (Discarded)
  • Doppler (Discarded)
  • Total Optical Observations (Discarded)
Radar
Value
Unit
Source
First Observation
Value
2010-07-25
Unit
-
Source
[3]
Last Observation
Value
2015-08-04
Unit
-
Source
[3]
Delay (Discarded)
Value
11 (0)
Unit
-
Source
[1]
Doppler (Discarded)
Value
4 (0)
Unit
-
Source
[1]
Total Radar Observations (Discarded)
Value
15 (0)
Unit
-
Source
[1]
Note: The ASCII file is in a format suitable for OrbFit input.

Sources

No.NameAdditional
[1]ESA ODIMESA orbit determination and impact monitoring system
[2]MPCMinor Planet Center: https://www.minorplanetcenter.net
[3]JPL Radar ObservationsJet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt