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
2014-03-30 02:33:13 C 12 39 59.48 -04 01 22.7 L W84
2014-03-30 02:35:11 C 12 39 59.26 -04 01 23.2 L W84
2014-03-30 02:37:08 C 12 39 59.04 -04 01 23.8 L W84
2014-03-30 02:39:05 C 12 39 58.83 -04 01 24.4 L W84
2014-03-30 02:47:00 C 12 39 57.93 -04 01 26.6 L W84
2014-03-30 02:48:59 C 12 39 57.70 -04 01 27.4 L W84
2014-03-30 02:50:58 C 12 39 57.48 -04 01 27.9 L W84
2014-03-30 02:52:55 C 12 39 57.26 -04 01 28.6 L W84
2014-03-30 03:00:53 C 12 39 56.36 -04 01 30.8 L W84
2014-03-30 03:04:48 C 12 39 55.91 -04 01 32.1 L W84
2014-03-30 03:06:46 C 12 39 55.69 -04 01 32.7 L W84
2014-03-30 03:08:44 C 12 39 55.46 -04 01 33.2 L W84
2014-03-30 03:10:42 C 12 39 55.25 -04 01 33.7 L W84
2014-03-30 03:12:39 C 12 39 55.02 -04 01 34.4 L W84
2014-03-30 03:14:38 C 12 39 54.81 -04 01 35.0 L W84
2014-03-30 03:16:35 C 12 39 54.58 -04 01 35.5 L W84
2014-03-30 03:18:33 C 12 39 54.36 -04 01 36.1 L W84
2014-03-30 03:24:25 C 12 39 53.69 -04 01 37.9 L W84
2014-03-30 03:26:23 C 12 39 53.46 -04 01 38.4 L W84
2014-03-30 03:30:48 C 12 39 52.97 -04 01 39.7 L W84
2014-03-30 03:32:47 C 12 39 52.74 -04 01 40.3 L W84
2014-03-30 03:36:44 C 12 39 52.31 -04 01 41.5 L W84
2014-03-30 03:38:42 C 12 39 52.08 -04 01 42.1 L W84
2014-03-30 03:40:43 C 12 39 51.84 -04 01 42.7 L W84
2014-03-30 03:42:41 C 12 39 51.63 -04 01 43.3 L W84
2014-03-30 03:44:40 C 12 39 51.40 -04 01 43.9 L W84
2014-03-30 03:46:38 C 12 39 51.17 -04 01 44.5 L W84
2014-03-30 03:48:37 C 12 39 50.95 -04 01 45.1 L W84
2014-03-30 03:50:34 C 12 39 50.73 -04 01 45.6 L W84
2014-03-30 03:52:32 C 12 39 50.50 -04 01 46.2 L W84
2014-03-30 03:54:30 C 12 39 50.28 -04 01 46.8 L W84
2014-03-30 03:56:28 C 12 39 50.06 -04 01 47.4 L W84
2014-03-30 03:58:25 C 12 39 49.83 -04 01 48.0 L W84
2014-03-30 04:00:28 C 12 39 49.60 -04 01 48.6 L W84
2014-03-30 05:36:19 C 12 39 39.26 -04 02 31.6 R G45
2014-03-30 05:52:42 C 12 39 37.38 -04 02 37.4 R G45
2014-03-30 06:27:30 C 12 39 33.44 -04 02 47.7 R G45
2014-03-30 06:29:32 C 12 39 33.23 -04 02 47.3 R G45
2014-03-30 07:10:53 C 12 39 28.48 -04 03 00.2 R G45
2014-03-30 07:27:20 C 12 39 26.60 -04 03 04.9 R G45
2014-03-30 07:43:44 C 12 39 24.74 -04 03 09.7 R G45
2014-03-31 01:57:12 C 12 37 25.06 -04 08 15.8 L W84
2014-03-31 02:05:05 C 12 37 24.18 -04 08 18.1 L W84
2014-03-31 02:07:04 C 12 37 23.95 -04 08 18.7 L W84
2014-03-31 02:11:02 C 12 37 23.49 -04 08 19.9 L W84
2014-03-31 02:12:59 C 12 37 23.28 -04 08 20.4 L W84
2014-03-31 02:14:58 C 12 37 23.06 -04 08 21.0 L W84
2014-03-31 02:16:56 C 12 37 22.84 -04 08 21.6 L W84
2014-03-31 02:18:54 C 12 37 22.60 -04 08 22.2 L W84
2014-03-31 02:20:50 C 12 37 22.38 -04 08 22.6 L W84