(138971) 2001CB21
▹
OBSERVATIONAL INFORMATION
Arc information
Arc length |
8407 |
days |
Unobserved |
49 |
days |
Astrometry summary
Optical
RMS of residuals |
0.453400 |
First observation |
2001-02-02.47394 |
Last observation |
2024-02-09.373366 |
Number (Discarded) |
2071 (14) |
|
Radar
First observation |
2006-10-02 |
Last observation |
2006-10-02 |
Delay (Discarded) |
1 (0) |
Doppler (Discarded) |
1 (0) |
Total (Discarded) |
2 (0) |
|
Note. The ASCII file is in a format suitable for OrbFit input.