IAA RAS IAA Minor Planet Database

2021 RP12

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4517722010 ± 1.32e-04
Semi-major axis (a)1.6408571883 AU ± 3.56e-04
Inclination (i)6.92790517° ± 1.67e-03
Long. of Asc. Node (Ω)190.84875153° ± 8.01e-05
Arg. of Perihelion (ω)227.54540924° ± 9.40e-05
Mean Anomaly (M)329.89501892° ± 2.25e-01
Mean Motion (n)0.4689279295°/day ± 1.53e-04
Perihelion dist (q)0.89956352 AU ± 2.91e-04
Aphelion dist (Q)2.38215085 AU ± 5.60e-04
Orbital Period2.10187157 yr ± 6.84e-04
Physical Parameters
H (abs. magnitude)24.57
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.336″
Uncertainty3
Orbit TypeApollo
MOID0.000559 AU
Observations Used51
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-11
Last Observation Used2021-10-03
Observations (51)
Date Type RA Dec Mag Band Observatory
2021-09-11 07:00:10 C 22 11 41.913 +13 03 26.20 – U F52
2021-09-11 07:15:53 C 22 11 40.917 +13 03 24.37 – U F52
2021-09-11 07:31:39 C 22 11 39.912 +13 03 22.67 – U F52
2021-09-11 07:47:25 C 22 11 38.903 +13 03 20.74 – U F52
2021-09-11 10:35:24 C 22 11 27.905 +13 02 56.51 – V F51
2021-09-11 10:36:19 C 22 11 27.858 +13 02 56.33 – V F51
2021-09-11 22:37:37 C 22 10 53.22 +13 00 33.2 – V 033
2021-09-11 22:42:05 C 22 10 52.91 +13 00 32.1 – V 033
2021-09-11 22:47:15 C 22 10 52.64 +13 00 31.2 – V 033
2021-09-12 23:02:59 C 22 09 37.94 +12 55 54.2 – V 033
2021-09-12 23:08:08 C 22 09 37.62 +12 55 53.1 – V 033
2021-09-12 23:13:18 C 22 09 37.23 +12 55 51.7 – V 033
2021-09-13 03:11:15 C 22 09 26.92 +12 55 11.1 – u H21
2021-09-13 03:33:51 C 22 09 25.43 +12 55 06.2 – u H21
2021-09-24 20:45:33 C 21 46 06.86 +09 43 23.1 – V 204
2021-09-24 21:03:42 C 21 46 03.75 +09 42 55.5 – V 204
2021-09-24 21:23:04 C 21 46 00.43 +09 42 25.2 – V 204
2021-09-25 04:36:17 C 21 44 58.27 +09 31 26.3 – V G96
2021-09-25 04:44:22 C 21 44 56.75 +09 31 13.1 – V G96
2021-09-25 05:02:56 C 21 44 53.34 +09 30 42.7 – V G96
2021-09-25 05:13:12 C 21 44 51.45 +09 30 26.2 – V G96
2021-09-27 00:55:26 C 21 37 17.15 +08 07 19.1 – u 807
2021-09-27 00:57:38 C 21 37 16.58 +08 07 14.4 – u 807
2021-09-27 00:59:53 C 21 37 16.05 +08 07 09.1 – u 807
2021-09-28 00:05:40 C 21 32 09.03 +07 06 50.1 – u 807
2021-09-28 00:10:08 C 21 32 07.75 +07 06 37.2 – u 807
2021-09-28 00:14:33 C 21 32 06.48 +07 06 24.7 – u 807
2021-09-29 07:29:29 C 21 23 09.00 +05 16 23.0 – V T05
2021-09-29 07:34:55 C 21 23 06.89 +05 16 00.5 – V T05
2021-09-29 08:19:53 C 21 22 49.37 +05 12 56.8 – V T05
2021-09-29 08:28:29 C 21 22 46.05 +05 12 21.9 – V T05
2021-09-29 21:26:17 C 21 18 10.02 +04 13 50.6 – V 203
2021-09-29 21:56:34 C 21 17 57.06 +04 11 26.3 – V 203
2021-09-29 22:11:05 C 21 17 50.91 +04 10 16.7 – V 203
2021-09-30 19:35:35 C 21 08 36.82 +02 12 50.2 – V 246
2021-09-30 19:35:48 C 21 08 36.73 +02 12 48.9 – V 246
2021-09-30 19:36:00 C 21 08 36.58 +02 12 47.8 – V 246
2021-09-30 19:36:13 C 21 08 36.84 +02 12 46.5 – V 246
2021-09-30 19:36:25 C 21 08 36.32 +02 12 45.9 – V 246
2021-09-30 19:36:50 C 21 08 36.11 +02 12 42.1 – V 246
2021-10-01 18:09:28 C 20 55 42.08 -00 32 19.9 – X 595
2021-10-01 18:22:36 C 20 55 32.43 -00 34 12.4 – X 595
2021-10-01 18:29:09 C 20 55 27.62 -00 35 08.8 – X 595
2021-10-02 18:12:04 C 20 36 08.45 -04 41 02.0 – V L18
2021-10-02 18:16:17 C 20 36 04.09 -04 41 53.8 – V L18
2021-10-02 18:20:29 C 20 35 59.61 -04 42 46.0 – V L18
2021-10-02 23:36:34 C 20 30 21.09 -05 49 23.3 – V G40
2021-10-02 23:46:14 C 20 30 09.94 -05 51 33.6 – V G40
2021-10-02 23:56:13 C 20 29 58.42 -05 53 48.7 – V G40
2021-10-03 03:35:14 C 20 26 08.10 -06 45 35.3 – o 691