2021 GC9

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4648865970 ± 4.58e-05
Semi-major axis (a)2.4105783090 AU ± 1.50e-04
Inclination (i)5.31786005° ± 1.82e-03
Long. of Asc. Node (Ω)221.34464434° ± 1.22e-03
Arg. of Perihelion (ω)279.35355385° ± 8.22e-03
Mean Anomaly (M)113.22604856° ± 4.34e-02
Mean Motion (n)0.2633482336°/day ± 2.46e-05
Perihelion dist (q)1.28993276 AU ± 1.36e-04
Aphelion dist (Q)3.53122386 AU ± 2.46e-04
Orbital Period3.74267285 yr ± 3.49e-04
Physical Parameters
H (abs. magnitude)20.79
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.143″
Uncertainty2
Orbit TypeAmor
MOID0.319931 AU
Observations Used31
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-10
Last Observation Used2021-05-06
Observations (35)
Date Type RA Dec Mag Band Observatory
2021-04-10 12:52:29 C 15 27 55.849 -20 14 13.37 U F51
2021-04-10 13:09:02 C 15 27 55.249 -20 14 07.75 U F51
2021-04-10 13:25:33 C 15 27 54.675 -20 14 01.74 U F51
2021-04-10 13:42:06 C 15 27 54.084 -20 13 55.62 U F51
2021-04-11 08:57:21 C 15 27 16.44 -20 06 45.9 V 807
2021-04-11 09:02:40 C 15 27 16.25 -20 06 44.1 V 807
2021-04-11 09:05:36 C 15 27 16.68 -20 06 54.9 o 691
2021-04-11 09:07:05 C 15 27 16.54 -20 06 54.4 V H01
2021-04-11 09:07:59 C 15 27 16.06 -20 06 41.9 V 807
2021-04-11 09:12:35 C 15 27 16.34 -20 06 52.4 V H01
2021-04-11 09:19:47 C 15 27 16.08 -20 06 50.1 o 691
2021-04-11 09:28:23 C 15 27 15.75 -20 06 46.7 V H01
2021-04-11 09:33:59 C 15 27 15.65 -20 06 43.8 o 691
2021-04-11 09:41:22 C 15 27 15.27 -20 06 41.8 V H01
2021-04-11 13:07:02 C 15 27 08.395 -20 05 24.34 V 568
2021-04-11 13:08:26 C 15 27 08.348 -20 05 23.89 V 568
2021-04-11 13:09:51 C 15 27 08.296 -20 05 23.31 V 568
2021-04-11 13:11:16 C 15 27 08.242 -20 05 22.78 V 568
2021-04-11 13:12:40 C 15 27 08.188 -20 05 22.33 V 568
2021-04-13 09:49:13 C 15 25 35.10 -19 48 44.0 V H01
2021-04-13 09:57:31 C 15 25 34.77 -19 48 40.6 V H01
2021-04-13 10:12:41 C 15 25 34.19 -19 48 34.8 V H01
2021-04-13 10:29:04 C 15 25 33.54 -19 48 28.6 V H01
2021-04-17 11:34:31 C 15 21 47.580 -19 10 23.63 U F51
2021-04-17 11:50:21 C 15 21 46.866 -19 10 16.95 U F51
2021-04-17 12:06:12 C 15 21 46.173 -19 10 10.48 U F51
2021-04-17 12:22:02 C 15 21 45.433 -19 10 04.25 U F51
2021-05-05 05:59:31 C 15 02 10.04 -16 11 58.3 V I52
2021-05-05 06:14:06 C 15 02 09.31 -16 11 50.0 V I52
2021-05-05 06:28:41 C 15 02 08.78 -16 11 44.8 V I52
2021-05-05 06:35:56 C 15 02 08.30 -16 11 40.6 V I52
2021-05-06 07:35:04 C 15 00 59.23 -16 01 32.9 V V06
2021-05-06 07:38:29 C 15 00 59.09 -16 01 31.3 V V06
2021-05-06 07:41:55 C 15 00 58.91 -16 01 29.9 V V06
2021-05-06 07:45:22 C 15 00 58.74 -16 01 28.5 V V06