IAA RAS IAA Minor Planet Database

2021 TP9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3453030000
Semi-major axis (a)1.4313164000 AU
Inclination (i)9.37192000°
Long. of Asc. Node (Ω)8.80131000°
Arg. of Perihelion (ω)315.93506000°
Mean Anomaly (M)169.99033000°
Mean Motion (n)0.5755732400°/day
Perihelion dist (q)0.93707860 AU
Aphelion dist (Q)1.92555420 AU
Orbital Period1.71239310 yr
Physical Parameters
H (abs. magnitude)25.17
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.630″
Uncertainty8
Orbit TypeApollo
MOID0.004579 AU
Observations Used57
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-10-17
Observations (59)
Date Type RA Dec Mag Band Observatory
2021-10-09 04:07:59 C 22 24 47.22 +16 43 08.0 – V 703
2021-10-09 04:24:20 C 22 24 56.32 +16 45 37.2 – V 703
2021-10-09 04:32:31 C 22 25 00.92 +16 46 51.6 – V 703
2021-10-09 06:51:57 C 22 26 17.96 +17 07 35.3 – V 703
2021-10-09 06:53:28 C 22 26 18.97 +17 07 49.4 – V 703
2021-10-09 18:02:49 C 22 32 57.63 +18 40 52.6 – V A17
2021-10-09 18:14:29 C 22 33 03.48 +18 42 40.2 – X 595
2021-10-09 18:16:56 C 22 33 05.05 +18 42 47.0 – V A17
2021-10-09 18:30:47 C 22 33 11.90 +18 44 51.3 – X 595
2021-10-09 18:35:47 C 22 33 14.89 +18 45 19.6 – V A17
2021-10-09 18:43:58 C 22 33 18.41 +18 46 28.5 – V 246
2021-10-09 18:44:11 C 22 33 18.55 +18 46 31.4 – V 246
2021-10-09 18:44:52 C 22 33 18.83 +18 46 36.1 – V 246
2021-10-09 18:47:05 C 22 33 20.30 +18 47 02.0 – X 595
2021-10-09 18:49:31 C 22 33 21.21 +18 47 14.5 – V 246
2021-10-09 18:50:19 C 22 33 21.68 +18 47 21.0 – V 246
2021-10-09 18:50:41 C 22 33 21.92 +18 47 23.7 – V 246
2021-10-09 18:51:04 C 22 33 22.05 +18 47 25.8 – V 246
2021-10-09 18:51:26 C 22 33 22.21 +18 47 28.5 – V 246
2021-10-09 18:51:49 C 22 33 22.40 +18 47 31.9 – V 246
2021-10-09 19:05:53 C 22 33 31.61 +18 49 11.7 – V J95
2021-10-09 19:08:34 C 22 33 30.35 +18 49 45.3 – V G02
2021-10-09 19:11:47 C 22 33 34.72 +18 49 59.1 – V J95
2021-10-09 19:18:59 C 22 33 35.72 +18 51 07.7 – V G02
2021-10-09 19:19:45 C 22 33 38.88 +18 51 02.8 – V J95
2021-10-09 19:29:22 C 22 33 40.98 +18 52 30.7 – V G02
2021-10-09 19:52:04 C 22 33 53.51 +18 55 41.6 – V L01
2021-10-09 19:56:33 C 22 33 55.79 +18 56 16.5 – V L01
2021-10-09 19:58:48 C 22 33 56.92 +18 56 34.3 – V L01
2021-10-09 20:01:03 C 22 33 58.04 +18 56 52.7 – V L01
2021-10-09 20:07:54 C 22 34 04.07 +18 57 48.2 – X 958
2021-10-09 20:22:03 C 22 34 11.18 +18 59 40.7 – X 958
2021-10-09 20:30:33 C 22 34 15.50 +19 00 47.3 – X 958
2021-10-10 00:11:56 C 22 36 06.16 +19 28 53.6 – V I93
2021-10-10 00:23:54 C 22 36 12.13 +19 30 22.8 – V I93
2021-10-10 00:36:07 C 22 36 18.31 +19 31 52.5 – V I93
2021-10-10 18:18:30 C 22 45 24.26 +21 34 38.7 – V 246
2021-10-10 18:20:01 C 22 45 24.97 +21 34 47.8 – V 246
2021-10-10 18:21:15 C 22 45 25.45 +21 34 56.5 – V 246
2021-10-10 18:21:39 C 22 45 25.66 +21 34 59.1 – V 246
2021-10-10 18:30:42 C 22 45 30.56 +21 36 03.3 – V 587
2021-10-10 18:32:21 C 22 45 31.30 +21 36 14.1 – V 587
2021-10-10 18:33:31 C 22 45 31.83 +21 36 22.1 – V 587
2021-10-10 18:45:21 C 22 45 37.09 +21 37 38.4 – V 204
2021-10-10 18:46:46 C 22 45 38.34 +21 37 29.0 – V J95
2021-10-10 18:59:04 C 22 45 43.84 +21 38 47.9 – V J95
2021-10-10 19:01:24 C 22 45 44.14 +21 39 22.0 – V 204
2021-10-10 19:28:16 C 22 45 55.73 +21 42 20.0 – V 104
2021-10-10 19:32:35 C 22 45 57.52 +21 42 47.3 – V 104
2021-10-13 01:58:46 C 23 07 49.70 +26 16 46.8 – u H21