IAA RAS IAA Minor Planet Database

2021 GT9

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2229892611 ± 2.02e-04
Semi-major axis (a)1.1396768482 AU ± 1.67e-04
Inclination (i)2.24266575° ± 1.81e-03
Long. of Asc. Node (Ω)34.52481996° ± 1.25e-03
Arg. of Perihelion (ω)249.72932669° ± 3.96e-03
Mean Anomaly (M)225.27750549° ± 2.81e-01
Mean Motion (n)0.8101019681°/day ± 1.78e-04
Perihelion dist (q)0.88554115 AU ± 2.64e-04
Aphelion dist (Q)1.39381255 AU ± 3.08e-04
Orbital Period1.21666941 yr ± 2.68e-04
Physical Parameters
H (abs. magnitude)26.57
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.218″
Uncertainty3
Orbit TypeApollo
MOID0.000170 AU
Observations Used20
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-08
Last Observation Used2021-04-20
Observations (20)
Date Type RA Dec Mag Band Observatory
2021-04-08 10:22:34 C 12 19 25.450 +08 31 58.15 – V F52
2021-04-09 06:37:28 C 12 15 40.663 +08 52 30.71 – V F52
2021-04-10 07:31:25 C 12 10 29.260 +09 19 20.41 – V F52
2021-04-11 07:38:28 C 12 04 59.387 +09 46 55.40 – U F51
2021-04-11 07:54:33 C 12 04 54.998 +09 47 14.79 – U F51
2021-04-11 08:10:40 C 12 04 50.553 +09 47 34.25 – U F51
2021-04-13 05:38:25 C 11 53 00.501 +10 44 24.00 – V 568
2021-04-13 05:39:49 C 11 53 00.068 +10 44 25.97 – V 568
2021-04-13 05:41:14 C 11 52 59.651 +10 44 27.81 – V 568
2021-04-13 05:42:38 C 11 52 59.189 +10 44 29.88 – V 568
2021-04-13 20:48:40 C 11 48 24.73 +11 03 49.0 – V 033
2021-04-13 20:51:45 C 11 48 23.73 +11 03 53.3 – V 033
2021-04-13 20:54:50 C 11 48 22.69 +11 03 57.5 – V 033
2021-04-13 23:42:01 C 11 47 26.39 +11 07 46.1 – V 033
2021-04-13 23:45:06 C 11 47 25.35 +11 07 50.1 – V 033
2021-04-13 23:48:10 C 11 47 24.29 +11 07 54.6 – V 033
2021-04-13 23:51:15 C 11 47 23.30 +11 07 58.3 – V 033
2021-04-20 03:57:00 C 10 41 39.61 +15 17 56.4 – V V06
2021-04-20 04:00:07 C 10 41 37.48 +15 18 02.3 – V V06
2021-04-20 04:06:20 C 10 41 33.23 +15 18 14.6 – V V06