IAA RAS IAA Minor Planet Database

2021 RB2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7126421502 ± 1.62e-04
Semi-major axis (a)3.2045284186 AU ± 1.81e-03
Inclination (i)13.14736641° ± 1.91e-03
Long. of Asc. Node (Ω)181.30907357° ± 5.39e-04
Arg. of Perihelion (ω)235.30479360° ± 1.17e-03
Mean Anomaly (M)253.95234847° ± 2.15e-01
Mean Motion (n)0.1718169815°/day ± 1.46e-04
Perihelion dist (q)0.92084640 AU ± 7.34e-04
Aphelion dist (Q)5.48821044 AU ± 3.14e-03
Orbital Period5.73648934 yr ± 4.86e-03
Physical Parameters
H (abs. magnitude)22.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.245″
Uncertainty3
Orbit TypeApollo
MOID0.060800 AU
Observations Used47
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-05
Last Observation Used2021-09-27
Observations (50)
Date Type RA Dec Mag Band Observatory
2021-09-05 09:11:53 C 00 11 37.785 +16 40 18.87 – U F52
2021-09-05 09:43:20 C 00 11 42.100 +16 40 15.89 – U F52
2021-09-05 09:59:06 C 00 11 44.248 +16 40 14.50 – U F52
2021-09-05 14:23:07 C 00 12 20.436 +16 39 41.85 – V F51
2021-09-05 14:24:20 C 00 12 20.593 +16 39 41.74 – V F51
2021-09-05 20:53:05 C 00 13 20.72 +16 38 38.3 – V L01
2021-09-05 20:57:02 C 00 13 21.30 +16 38 37.4 – V L01
2021-09-05 21:00:58 C 00 13 21.86 +16 38 36.9 – V L01
2021-09-05 21:04:20 C 00 13 22.32 +16 38 36.4 – V L01
2021-09-05 21:09:25 C 00 13 22.96 +16 38 33.4 – V 033
2021-09-05 21:12:05 C 00 13 23.38 +16 38 33.1 – V 033
2021-09-05 21:14:45 C 00 13 23.78 +16 38 32.7 – V 033
2021-09-05 21:49:53 C 00 13 29.18 +16 38 30.7 – X I93
2021-09-05 22:02:37 C 00 13 31.07 +16 38 29.1 – X I93
2021-09-05 22:14:58 C 00 13 32.82 +16 38 27.6 – X I93
2021-09-06 05:03:29 C 00 14 34.28 +16 37 32.0 – u H21
2021-09-06 05:11:32 C 00 14 35.46 +16 37 30.8 – u H21
2021-09-06 05:25:38 C 00 14 37.51 +16 37 28.9 – u H21
2021-09-06 22:29:25 C 00 17 17.91 +16 34 28.5 – V I93
2021-09-06 22:35:10 C 00 17 18.78 +16 34 28.4 – V I93
2021-09-06 22:41:37 C 00 17 19.74 +16 34 27.2 – V I93
2021-09-07 08:04:01 C 00 18 50.30 +16 32 41.8 – V G96
2021-09-07 08:13:47 C 00 18 51.79 +16 32 39.9 – V G96
2021-09-07 08:21:55 C 00 18 53.07 +16 32 38.1 – V G96
2021-09-07 08:30:03 C 00 18 54.33 +16 32 36.0 – V G96
2021-09-11 17:19:06 C 00 39 11.79 +15 54 43.3 – V D29
2021-09-11 17:39:27 C 00 39 16.19 +15 54 33.2 – V D29
2021-09-11 17:59:49 C 00 39 20.64 +15 54 22.0 – V D29
2021-09-11 21:29:51 C 00 40 10.46 +15 52 12.9 – V 033
2021-09-11 21:32:01 C 00 40 10.97 +15 52 11.6 – V 033
2021-09-11 21:33:15 C 00 40 11.23 +15 52 11.0 – V 033
2021-09-12 21:09:49 C 00 45 51.26 +15 37 52.9 – V 033
2021-09-12 21:10:54 C 00 45 51.47 +15 37 52.3 – V 033
2021-09-12 21:11:58 C 00 45 51.75 +15 37 51.6 – V 033
2021-09-12 21:13:16 C 00 45 52.05 +15 37 50.8 – V 033
2021-09-12 21:14:30 C 00 45 52.37 +15 37 49.9 – V 033
2021-09-12 21:15:42 C 00 45 52.65 +15 37 49.3 – V 033
2021-09-16 07:52:49 C 01 09 47.11 +14 25 05.0 – V G96
2021-09-16 08:00:20 C 01 09 49.52 +14 24 56.5 – V G96
2021-09-16 08:07:50 C 01 09 51.94 +14 24 48.2 – V G96
2021-09-16 08:15:23 C 01 09 54.38 +14 24 39.4 – V G96
2021-09-26 06:06:27 C 03 17 10.18 +04 21 53.9 – u 807
2021-09-26 06:12:18 C 03 17 14.54 +04 21 29.2 – u 807
2021-09-26 06:18:07 C 03 17 18.95 +04 21 04.7 – u 807
2021-09-27 05:35:55 C 03 35 47.81 +02 35 30.6 – u 807
2021-09-27 05:39:33 C 03 35 50.65 +02 35 13.6 – u 807
2021-09-27 05:43:11 C 03 35 53.58 +02 34 56.4 – u 807
2021-10-06 13:45:51 S 06 38 57.847 -14 00 49.93 – L C51
2021-10-06 13:46:02 S 06 38 57.974 -14 00 49.54 – L C51
2021-10-06 18:28:14 S 06 42 05.155 -14 14 23.21 – L C51