2021 RS9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5118094745 ± 3.69e-06
Semi-major axis (a)2.1429716472 AU ± 1.70e-05
Inclination (i)3.73451723° ± 1.90e-05
Long. of Asc. Node (Ω)207.56765917° ± 5.88e-05
Arg. of Perihelion (ω)216.01319100° ± 3.77e-05
Mean Anomaly (M)94.47650682° ± 5.43e-03
Mean Motion (n)0.3141865855°/day ± 3.73e-06
Perihelion dist (q)1.04617845 AU ± 1.15e-05
Aphelion dist (Q)3.23976484 AU ± 2.68e-05
Orbital Period3.13707309 yr ± 3.73e-05
Physical Parameters
H (abs. magnitude)22.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.205″
Uncertainty1
Orbit TypeAmor
MOID0.067519 AU
Observations Used60
Oppositions1
Arc Total2021-2022
First Observation Used2021-09-09
Last Observation Used2022-01-27
Observations (62)
Date Type RA Dec Mag Band Observatory
2021-09-09 08:31:07 C 22 45 30.306 +01 11 25.35 U F51
2021-09-09 08:47:44 C 22 45 29.501 +01 11 19.96 U F51
2021-09-09 09:04:28 C 22 45 28.651 +01 11 14.78 U F51
2021-09-09 11:45:04 C 22 45 20.565 +01 10 23.07 V F51
2021-09-09 11:45:59 C 22 45 20.511 +01 10 22.61 V F51
2021-09-10 04:44:19 C 22 44 34.86 +01 05 05.7 V 807
2021-09-10 04:49:38 C 22 44 34.59 +01 05 04.1 V 807
2021-09-10 04:54:57 C 22 44 34.31 +01 05 02.5 V 807
2021-09-10 07:40:03 C 22 44 26.81 +01 03 46.1 o 691
2021-09-10 07:53:38 C 22 44 26.09 +01 03 41.6 o 691
2021-09-10 08:07:13 C 22 44 25.43 +01 03 37.4 o 691
2021-09-10 08:26:29 C 22 44 25.386 +01 03 33.61 U F51
2021-09-10 08:38:53 C 22 44 24.751 +01 03 29.54 U F51
2021-09-10 08:51:17 C 22 44 24.114 +01 03 25.25 U F51
2021-09-10 09:03:42 C 22 44 23.470 +01 03 21.11 U F51
2021-09-12 09:05:07 C 22 42 09.04 +00 46 19.1 o 291
2021-09-12 09:23:49 C 22 42 08.08 +00 46 12.0 o 291
2021-09-12 09:42:29 C 22 42 07.12 +00 46 05.3 o 291
2021-09-13 08:01:12 C 22 41 05.387 +00 37 43.97 U F52
2021-09-13 08:34:23 C 22 41 03.627 +00 37 31.20 U F52
2021-09-13 08:50:59 C 22 41 02.746 +00 37 24.76 U F52
2021-09-26 02:12:58 C 22 26 32.63 -01 47 09.2 u H21
2021-09-26 02:17:21 C 22 26 32.41 -01 47 11.9 u H21
2021-09-26 02:23:29 C 22 26 32.10 -01 47 15.2 u H21
2021-09-27 06:40:08 C 22 25 17.568 -02 02 47.34 U F52
2021-09-27 06:56:36 C 22 25 16.752 -02 02 56.59 U F52
2021-09-27 07:13:08 C 22 25 15.937 -02 03 05.94 U F52
2021-09-27 07:29:37 C 22 25 15.100 -02 03 15.24 U F52
2021-10-04 03:00:41 C 22 18 55.67 -03 38 32.0 u H21
2021-10-04 03:06:31 C 22 18 55.45 -03 38 35.5 u H21
2021-10-04 03:14:42 C 22 18 55.13 -03 38 40.5 u H21
2021-10-14 01:25:47 C 22 13 52.57 -06 01 19.9 V 807
2021-10-14 01:31:06 C 22 13 52.49 -06 01 22.9 V 807
2021-10-14 01:36:26 C 22 13 52.43 -06 01 25.8 V 807
2021-10-26 05:16:03 C 22 17 20.049 -08 44 12.23 U F51
2021-10-26 05:32:19 C 22 17 20.410 -08 44 20.86 U F51
2021-10-26 05:48:37 C 22 17 20.810 -08 44 29.03 U F51
2021-10-26 06:04:50 C 22 17 21.178 -08 44 37.40 U F51
2021-12-02 01:29:10 C 00 00 29.60 -12 39 32.5 u 807
2021-12-02 01:37:11 C 00 00 31.30 -12 39 32.0 u 807
2021-12-02 01:45:10 C 00 00 32.91 -12 39 30.2 u 807
2021-12-02 04:09:50 C 00 01 04.87 -12 39 58.9 o 691
2021-12-02 04:33:48 C 00 01 09.85 -12 39 55.6 o 691
2021-12-02 04:57:46 C 00 01 14.86 -12 39 51.2 o 691
2021-12-03 03:16:31 C 00 06 14.24 -12 36 27.8 o 691
2021-12-03 03:40:48 C 00 06 19.41 -12 36 23.7 o 691
2021-12-03 04:05:06 C 00 06 24.63 -12 36 18.8 o 691
2021-12-31 02:17:04 C 03 18 09.34 -03 37 40.1 u 807
2021-12-31 02:22:55 C 03 18 10.97 -03 37 32.3 u 807
2021-12-31 02:28:43 C 03 18 12.61 -03 37 25.2 u 807