2021 RQ9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4641222478 ± 7.83e-05
Semi-major axis (a)1.4076231224 AU ± 1.54e-04
Inclination (i)8.04444776° ± 1.18e-03
Long. of Asc. Node (Ω)174.99513846° ± 8.32e-05
Arg. of Perihelion (ω)256.68579066° ± 7.05e-05
Mean Anomaly (M)149.44945272° ± 1.40e-01
Mean Motion (n)0.5901775537°/day ± 9.66e-05
Perihelion dist (q)0.75431391 AU ± 1.38e-04
Aphelion dist (Q)2.06093233 AU ± 2.51e-04
Orbital Period1.67005044 yr ± 2.73e-04
Physical Parameters
H (abs. magnitude)26.27
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.269″
Uncertainty3
Orbit TypeApollo
MOID0.002987 AU
Observations Used67
Oppositions1
Arc Total2021-2021
First Observation Used2021-09-07
Last Observation Used2021-09-16
Observations (67)
Date Type RA Dec Mag Band Observatory
2021-09-07 06:05:37 C 22 38 49.18 +13 46 58.2 V G96
2021-09-07 06:13:47 C 22 38 48.52 +13 47 00.8 V G96
2021-09-11 07:05:40 C 22 31 35.818 +14 24 48.10 U F52
2021-09-11 07:21:24 C 22 31 33.199 +14 24 58.73 U F52
2021-09-11 07:37:10 C 22 31 30.509 +14 25 09.17 U F52
2021-09-11 07:52:55 C 22 31 27.788 +14 25 19.51 U F52
2021-09-11 10:37:15 C 22 30 58.030 +14 26 56.15 V F51
2021-09-11 10:38:11 C 22 30 57.858 +14 26 56.64 V F51
2021-09-11 19:18:18 C 22 29 56.19 +14 30 23.8 V 033
2021-09-11 19:19:52 C 22 29 55.93 +14 30 24.8 V 033
2021-09-11 19:21:27 C 22 29 55.65 +14 30 25.8 V 033
2021-09-11 19:41:37 C 22 29 52.48 +14 30 58.9 X L01
2021-09-11 19:50:45 C 22 29 50.80 +14 31 04.8 X L01
2021-09-11 19:59:52 C 22 29 49.10 +14 31 12.0 X L01
2021-09-11 21:47:13 C 22 29 29.28 +14 32 24.7 V 587
2021-09-11 21:48:31 C 22 29 29.01 +14 32 25.1 V 587
2021-09-11 22:06:12 C 22 29 27.29 +14 32 40.4 V I93
2021-09-11 22:14:02 C 22 29 25.74 +14 32 45.9 V I93
2021-09-11 22:22:16 C 22 29 24.11 +14 32 51.3 V I93
2021-09-12 01:42:41 C 22 28 42.07 +14 34 54.4 V 104
2021-09-12 02:04:20 C 22 28 37.91 +14 35 05.6 V 104
2021-09-12 03:44:59 C 22 28 34.16 +14 36 47.7 u H21
2021-09-12 03:53:02 C 22 28 32.38 +14 36 53.6 u H21
2021-09-14 20:12:15 C 22 06 29.72 +16 02 07.9 V 246
2021-09-14 20:12:27 C 22 06 29.53 +16 02 08.8 V 246
2021-09-14 20:12:38 C 22 06 29.36 +16 02 08.7 V 246
2021-09-14 20:12:50 C 22 06 29.23 +16 02 09.6 V 246
2021-09-14 20:13:01 C 22 06 29.05 +16 02 10.0 V 246
2021-09-14 20:13:13 C 22 06 28.91 +16 02 10.5 V 246
2021-09-14 20:13:24 C 22 06 28.78 +16 02 10.6 V 246
2021-09-14 20:43:08 C 22 06 05.35 +16 03 51.6 X 595
2021-09-14 20:55:09 C 22 05 55.46 +16 04 24.5 X 595
2021-09-14 21:05:13 C 22 05 47.11 +16 04 52.0 X 595
2021-09-14 21:13:19 C 22 05 40.32 +16 05 13.9 X 595
2021-09-15 05:28:30 C 21 58 37.56 +16 32 18.6 o 691
2021-09-15 05:45:15 C 21 58 18.44 +16 33 18.1 o 691
2021-09-15 06:02:02 C 21 57 59.02 +16 34 17.3 o 691
2021-09-15 09:58:07 C 21 53 10.088 +16 47 27.20 V G37
2021-09-15 09:58:24 C 21 53 09.742 +16 47 28.23 V G37
2021-09-15 09:58:40 C 21 53 09.387 +16 47 29.33 V G37
2021-09-15 09:58:57 C 21 53 09.035 +16 47 30.07 V G37
2021-09-15 20:13:10 C 21 38 02.73 +17 36 46.2 V L18
2021-09-15 20:15:40 C 21 37 57.46 +17 37 00.0 V L18
2021-09-15 20:18:10 C 21 37 52.19 +17 37 15.4 V L18
2021-09-15 21:38:01 C 21 35 14.07 +17 44 51.6 V Z80
2021-09-15 21:45:21 C 21 34 57.38 +17 45 38.7 V Z80
2021-09-15 21:52:41 C 21 34 40.70 +17 46 25.5 V Z80
2021-09-16 02:22:17 C 21 23 58.45 +18 20 25.4 u H21
2021-09-16 02:23:46 C 21 23 54.00 +18 20 37.3 u H21
2021-09-16 02:25:18 C 21 23 49.42 +18 20 49.7 u H21