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
2021-09-16 02:26:49 C 21 23 44.83 +18 21 02.0 u H21
2021-09-16 02:28:21 C 21 23 40.21 +18 21 14.3 u H21
2021-09-16 02:29:53 C 21 23 35.60 +18 21 26.7 u H21
2021-09-16 02:31:09 C 21 23 31.75 +18 21 37.0 u H21
2021-09-16 20:57:40 C 19 29 10.49 +21 10 54.0 V J95
2021-09-16 21:01:33 C 19 28 20.15 +21 11 04.1 V J95
2021-09-16 21:02:57 C 19 28 02.16 +21 11 07.3 V J95
2021-09-16 21:05:31 C 19 27 28.49 +21 11 13.0 V J95
2021-09-16 21:06:52 C 19 27 10.93 +21 11 15.9 V J95
2021-09-16 21:54:04 C 19 16 29.50 +21 11 45.6 q J69
2021-09-16 21:59:53 C 19 15 07.77 +21 11 35.8 q J69
2021-09-16 22:05:41 C 19 13 45.28 +21 11 22.0 q J69
2021-09-16 22:11:31 C 19 12 21.63 +21 11 06.9 q J69
2021-09-16 22:56:18 C 19 01 19.34 +21 07 10.8 V J95
2021-09-16 22:57:47 C 19 00 56.66 +21 07 00.2 V J95
2021-09-16 23:00:04 C 19 00 21.61 +21 06 43.2 V J95
2021-09-16 23:01:45 C 18 59 55.86 +21 06 30.2 V J95