Last update: 2021-03-05 15:02 UTC
Summary
Orbit Properties
Physical Properties
Observations
Ephemerides
Close Approaches
 
3200 Phaethon
Observational Information
Arc Information Value Unit Source
Arc Length 13638 days [1]
Unobserved 22 days [1]
Astrometry Summary
Optical Value Unit Source
RMS of Residuals 0.413629 arcseconds [1]
First Observation 1983-10-11.06869 - [2]
Last Observation 2021-02-11.1103 - [2]
Total Optical Observations (Discarded) 5817 (29) - [1]
Radar Value Unit Source
First Observation 2007-12-08 - [3]
Last Observation 2017-12-19 - [3]
Delay (Discarded) 8 (0) - [1]
Doppler (Discarded) 0 (0) - [1]
Total Radar Observations (Discarded) 8 (0) - [1]
Note: The ASCII file is in a format suitable for OrbFit input.
Sources
No. Name Additional
[1] ESA ODIM ESA orbit determination and impact monitoring system
[2] MPC Minor Planet Center: https://www.minorplanetcenter.net
[3] JPL Radar Observations Jet Propulsion Laboratory: https://ssd.jpl.nasa.gov/dat/radar_data_ast.txt