21P

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2026-03-24 (JD 2461123.5)
Eccentricity (e)0.7111070000
Semi-major axis (a)3.4907387856 AU
Inclination (i)32.05900000°
Long. of Asc. Node (Ω)195.29460000°
Arg. of Perihelion (ω)172.93950000°
Mean Anomaly (M)0.00000000°
Mean Motion (n)—°/day
Perihelion dist (q)1.00845000 AU
Aphelion dist (Q)5.97302757 AU
Orbital Period6.52192841 yr
Physical Parameters
H (abs. magnitude)9.00
G (slope)6.00
Orbit Solution
SourceMPC
Solution Date
RMS Residual—″
Uncertainty
Orbit TypeP
MOID0.010867 AU
Observations Used
Oppositions
Arc Total
First Observation Used
Last Observation Used
Observations (7431)
Date Type RA Dec Mag Band Observatory
2005-11-26 06:44:38 C 08 54 06.79 -23 58 43.2 c 844
2005-12-13 18:11:57 C 08 47 33.55 -26 59 06.4 m 349
2005-12-13 18:18:24 C 08 47 33.36 -26 59 08.3 m 349
2005-12-13 18:24:48 C 08 47 33.15 -26 59 10.4 m 349
2005-12-17 13:34:41 C 08 44 47.73 -27 25 17.5 r 415
2005-12-17 13:42:48 C 08 44 47.49 -27 25 18.7 r 415
2005-12-17 13:50:53 C 08 44 47.26 -27 25 21.4 r 415
2005-12-19 12:57:48 C 08 43 11.58 -27 36 47.3 o 415
2005-12-19 13:01:51 C 08 43 11.46 -27 36 48.6 o 415
2005-12-19 13:05:53 C 08 43 11.32 -27 36 49.5 o 415
2005-12-20 15:49:21 C 08 42 13.84 -27 42 38.5 r 423
2005-12-20 16:07:26 C 08 42 13.15 -27 42 42.3 r 423
2005-12-21 13:16:28 C 08 41 26.47 -27 47 02.2 o 568
2005-12-21 14:07:37 C 08 41 24.47 -27 47 12.0 o 568
2005-12-21 14:27:55 C 08 41 23.70 -27 47 15.8 o 568
2005-12-22 13:03:02 C 08 40 32.68 -27 51 20.3 r 415
2005-12-22 13:11:09 C 08 40 32.37 -27 51 22.0 r 415
2005-12-27 13:56:43 C 08 35 35.85 -28 07 22.4 o 415
2005-12-27 14:04:49 C 08 35 35.46 -28 07 22.7 o 415
2005-12-29 12:57:09 C 08 33 31.48 -28 10 36.9 o 415
2005-12-29 13:05:15 C 08 33 31.16 -28 10 37.7 o 415
2005-12-31 01:39:08 C 08 31 51.50 -28 11 58.3 c I05
2005-12-31 14:30:13 C 08 31 15.61 -28 12 12.2 r 423
2005-12-31 14:38:57 C 08 31 15.21 -28 12 12.6 r 423
2006-01-02 16:28:42 C 08 28 54.49 -28 11 55.7 m 349
2006-01-02 16:32:55 C 08 28 54.29 -28 11 55.9 m 349
2006-01-02 16:37:06 C 08 28 54.09 -28 11 55.9 m 349
2006-01-03 23:34:23 C 08 27 25.11 -28 10 43.2 c J76
2006-01-03 23:37:31 C 08 27 25.02 -28 10 42.5 c J76
2006-01-03 23:42:44 C 08 27 24.75 -28 10 42.6 c J76
2006-01-04 03:00:01 C 08 27 14.90 -28 10 31.6 m 204
2006-01-08 15:50:36 C 08 21 53.29 -27 59 54.8 m 349
2006-01-08 15:53:48 C 08 21 53.12 -27 59 54.3 m 349
2006-01-08 15:57:02 C 08 21 52.99 -27 59 53.6 m 349
2006-01-10 14:06:46 C 08 19 34.28 -27 52 28.7 o 415
2006-01-10 14:12:52 C 08 19 33.96 -27 52 27.4 o 415
2006-01-12 11:51:36 C 08 17 16.28 -27 43 35.1 o 415
2006-01-12 11:57:42 C 08 17 15.97 -27 43 34.0 o 415
2006-01-13 22:57:52 C 08 15 30.10 -27 35 46.8 c 213
2006-01-13 22:59:54 C 08 15 30.04 -27 35 46.6 c 213
2006-01-13 23:01:14 C 08 15 29.97 -27 35 46.5 c 213
2006-01-20 13:52:02 C 08 07 36.44 -26 48 39.9 o 415
2006-01-20 13:58:12 C 08 07 36.12 -26 48 37.6 o 415
2006-01-21 23:13:43 C 08 05 59.68 -26 36 36.6 c J76
2006-01-21 23:14:15 C 08 05 59.69 -26 36 37.1 c J76
2006-01-21 23:17:31 C 08 05 59.36 -26 36 36.6 c J76
2006-01-22 21:41:04 C 08 04 55.24 -26 28 05.2 r 130
2006-01-24 13:43:19 C 08 03 02.12 -26 11 59.9 c D70
2006-01-24 13:45:20 C 08 03 02.06 -26 11 59.5 c D70
2006-01-25 06:44:14 C 08 02 14.52 -26 04 46.9 r I05