887 Alinda
Last update: 2021-10-18 13:09 UTC
Observational Information
  • Arc Length
  • Unobserved
Arc Information
Value
Unit
Source
Arc Length
Value
37829
Unit
days
Source
[1]
Unobserved
Value
79
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
0.416684
Unit
arcseconds
Source
[1]
First Observation
Value
1918-01-03.84861
Unit
-
Source
[2]
Last Observation
Value
2021-07-31.272744
Unit
-
Source
[2]
Total Optical Observations (Discarded)
Value
2654 (21)
Unit
-
Source
[1]
Radar Summary
  • First Observation
  • Last Observation
  • Delay (Discarded)
  • Doppler (Discarded)
  • Total Optical Observations (Discarded)
Radar
Value
Unit
Source
First Observation
Value
-
Unit
-
Source
[3]
Last Observation
Value
-
Unit
-
Source
[3]
Delay (Discarded)
Value
0 (0)
Unit
-
Source
[1]
Doppler (Discarded)
Value
0 (0)
Unit
-
Source
[1]
Total Radar Observations (Discarded)
Value
0 (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