390929 (2005 GP21)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2245432452 ± 4.41e-07
Semi-major axis (a)1.3083120149 AU ± 3.73e-09
Inclination (i)18.80146381° ± 2.25e-05
Long. of Asc. Node (Ω)9.98183761° ± 2.82e-06
Arg. of Perihelion (ω)1.43369353° ± 1.49e-04
Mean Anomaly (M)99.12320924° ± 2.28e-04
Mean Motion (n)0.6586357219°/day ± 2.82e-09
Perihelion dist (q)1.01453939 AU ± 5.77e-07
Aphelion dist (Q)1.60208464 AU ± 5.77e-07
Orbital Period1.49646648 yr ± 6.41e-09
Physical Parameters
H (abs. magnitude)20.44
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.123″
Uncertainty0
Orbit TypeApollo
MOID0.012306 AU
Observations Used239
Oppositions6
Arc Total2005-2023
First Observation Used2005-04-04
Last Observation Used2023-04-25
Observations (283)
Date Type RA Dec Mag Band Observatory
2020-04-03 06:52:11 C 12 45 07.08 -08 29 05.0 V G96
2020-04-03 07:08:30 C 12 45 05.21 -08 29 10.5 V G96
2020-04-03 07:16:39 C 12 45 04.27 -08 29 12.9 V G96
2020-04-16 04:26:36 C 12 12 15.44 -09 52 21.4 V G96
2020-04-16 04:42:51 C 12 12 13.82 -09 52 25.1 V G96
2020-04-16 04:50:59 C 12 12 13.01 -09 52 27.6 V G96
2020-04-26 05:48:07 C 11 51 47.76 -10 46 12.5 V G96
2020-04-26 05:55:33 C 11 51 47.22 -10 46 14.0 V G96
2020-04-26 06:03:00 C 11 51 46.65 -10 46 15.5 V G96
2020-04-26 06:10:27 C 11 51 46.07 -10 46 17.2 V G96
2020-04-28 07:39:44 C 11 48 23.880 -10 56 50.02 U F51
2020-04-28 07:57:08 C 11 48 22.696 -10 56 53.57 U F51
2020-04-28 08:14:42 C 11 48 21.476 -10 56 57.28 U F51
2020-04-28 08:32:09 C 11 48 20.282 -10 57 01.10 U F51
2020-05-11 06:27:51 C 11 33 56.143 -12 05 50.67 U F51
2020-05-11 06:42:40 C 11 33 55.683 -12 05 54.21 U F51
2020-05-11 06:57:31 C 11 33 55.213 -12 05 57.61 U F51
2020-05-11 07:12:39 C 11 33 54.736 -12 06 01.03 U F51
2023-03-16 12:37:09 C 13 37 17.448 -07 41 20.14 U F52
2023-03-16 12:53:52 C 13 37 16.120 -07 41 27.03 U F52
2023-03-16 13:10:37 C 13 37 14.785 -07 41 33.67 U F52
2023-03-16 13:27:23 C 13 37 13.453 -07 41 40.69 U F52
2023-04-15 08:15:10 C 12 24 29.061 -11 42 52.06 U F52
2023-04-15 08:48:23 C 12 24 25.495 -11 43 00.21 U F52
2023-04-15 09:04:55 C 12 24 23.702 -11 43 04.07 U F52
2023-04-19 06:23:25 C 12 15 02.336 -12 04 10.02 V G96
2023-04-19 06:30:53 C 12 15 01.570 -12 04 12.04 V G96
2023-04-19 06:38:20 C 12 15 00.864 -12 04 12.72 V G96
2023-04-19 06:45:49 C 12 15 00.108 -12 04 13.84 V G96
2023-04-25 07:08:15 C 12 02 09.004 -12 33 17.00 X F52
2023-04-25 07:22:52 C 12 02 07.767 -12 33 19.63 X F52
2023-04-25 07:37:31 C 12 02 06.518 -12 33 22.68 X F52
2023-04-25 07:52:08 C 12 02 05.279 -12 33 25.41 X F52