2021 RO9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5799690436 ± 3.98e-06
Semi-major axis (a)2.7734753708 AU ± 2.86e-05
Inclination (i)16.21427411° ± 3.69e-05
Long. of Asc. Node (Ω)261.10895041° ± 9.55e-05
Arg. of Perihelion (ω)160.89359252° ± 3.95e-05
Mean Anomaly (M)303.36429283° ± 4.68e-03
Mean Motion (n)0.2133908561°/day ± 3.30e-06
Perihelion dist (q)1.16494551 AU ± 1.63e-05
Aphelion dist (Q)4.38200523 AU ± 4.65e-05
Orbital Period4.61887778 yr ± 7.14e-05
Physical Parameters
H (abs. magnitude)18.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.238″
Uncertainty1
Orbit TypeAmor
MOID0.191018 AU
Observations Used138
Oppositions1
Arc Total2021-2022
First Observation Used2021-09-06
Last Observation Used2022-03-02
Observations (147)
Date Type RA Dec Mag Band Observatory
2021-11-12 02:46:33 C 21 25 42.88 +13 16 01.3 o 691
2021-11-13 01:47:27 C 21 27 44.68 +13 09 45.3 o 691
2021-11-13 02:07:03 C 21 27 46.37 +13 09 40.0 o 691
2021-11-13 02:26:39 C 21 27 48.07 +13 09 34.8 o 691
2021-11-14 01:34:45 C 21 29 53.73 +13 03 25.3 o 691
2021-11-14 01:34:45 C 21 29 53.73 +13 03 25.6 o 691
2021-11-14 01:52:45 C 21 29 55.30 +13 03 20.3 o 691
2021-11-14 02:00:45 C 21 29 55.98 +13 03 18.5 o 691
2021-11-14 02:10:45 C 21 29 56.91 +13 03 15.9 o 691
2021-11-14 02:26:45 C 21 29 58.29 +13 03 11.4 o 691
2021-11-15 02:03:44 C 21 32 09.90 +12 57 03.7 o 691
2021-11-15 02:33:25 C 21 32 12.58 +12 56 55.9 o 691
2021-11-15 03:03:05 C 21 32 15.31 +12 56 47.9 o 691
2021-11-30 17:44:53 C 22 14 18.32 +11 37 27.7 Z K19
2021-11-30 17:57:20 C 22 14 19.96 +11 37 26.0 Z K19
2021-11-30 18:09:45 C 22 14 21.47 +11 37 23.1 Z K19
2021-12-01 02:50:25 C 22 15 29.28 +11 35 58.3 o 691
2021-12-01 03:22:08 C 22 15 33.36 +11 35 53.3 o 691
2021-12-01 03:53:45 C 22 15 37.47 +11 35 48.2 o 691
2021-12-16 04:14:19 C 23 08 46.04 +10 48 18.4 V 695
2021-12-16 04:20:40 C 23 08 47.06 +10 48 17.7 V 695
2021-12-16 04:27:01 C 23 08 48.10 +10 48 17.1 V 695
2021-12-17 02:02:17 C 23 12 20.66 +10 46 07.2 V G96
2021-12-17 02:11:06 C 23 12 22.03 +10 46 07.1 V G96
2021-12-17 02:19:53 C 23 12 23.49 +10 46 05.3 V G96
2021-12-17 02:28:40 C 23 12 24.92 +10 46 04.6 V G96
2021-12-17 03:01:22 C 23 12 30.21 +10 46 01.2 V 695
2021-12-17 03:05:48 C 23 12 30.93 +10 46 00.7 V 695
2021-12-17 03:10:02 C 23 12 31.62 +10 46 00.3 V 695
2022-01-07 02:24:45 C 00 43 37.42 +10 06 32.4 V G96
2022-01-07 02:32:55 C 00 43 38.97 +10 06 31.5 V G96
2022-01-07 02:41:06 C 00 43 40.57 +10 06 31.1 V G96
2022-01-07 02:49:18 C 00 43 42.05 +10 06 29.3 V G96
2022-01-21 05:37:17 C 01 49 51.504 +09 45 31.01 U F52
2022-01-21 05:55:44 C 01 49 55.040 +09 45 29.71 U F52
2022-01-21 06:14:11 C 01 49 58.578 +09 45 28.53 U F52
2022-02-06 02:39:07 C 03 02 05.41 +09 23 22.8 V G96
2022-02-06 02:47:26 C 03 02 06.90 +09 23 22.6 V G96
2022-02-06 02:55:43 C 03 02 08.37 +09 23 21.9 V G96
2022-02-06 03:04:01 C 03 02 09.88 +09 23 21.6 V G96
2022-03-02 02:38:11 C 04 38 32.32 +08 52 21.0 o 691
2022-03-02 02:50:11 C 04 38 34.09 +08 52 20.2 V G96
2022-03-02 02:57:15 C 04 38 35.18 +08 52 19.8 o 691
2022-03-02 02:58:19 C 04 38 35.37 +08 52 19.7 V G96
2022-03-02 03:06:28 C 04 38 36.57 +08 52 19.2 V G96
2022-03-02 03:14:33 C 04 38 37.78 +08 52 18.1 V G96
2022-03-02 03:16:18 C 04 38 38.01 +08 52 18.7 o 691