IAA RAS IAA Minor Planet Database

2021 GP4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3103500173 ± 2.14e-04
Semi-major axis (a)1.4147298190 AU ± 4.24e-04
Inclination (i)10.38422980° ± 5.35e-03
Long. of Asc. Node (Ω)25.52807368° ± 5.60e-04
Arg. of Perihelion (ω)230.53971348° ± 1.92e-03
Mean Anomaly (M)237.97404130° ± 4.27e-01
Mean Motion (n)0.5857361320°/day ± 2.63e-04
Perihelion dist (q)0.97566840 AU ± 4.21e-04
Aphelion dist (Q)1.85379124 AU ± 6.32e-04
Orbital Period1.68271382 yr ± 7.56e-04
Physical Parameters
H (abs. magnitude)25.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.288″
Uncertainty3
Orbit TypeApollo
MOID0.042390 AU
Observations Used40
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-07
Last Observation Used2021-04-19
Observations (41)
Date Type RA Dec Mag Band Observatory
2021-04-07 11:27:41 C 14 14 03.570 +01 20 05.16 – U F51
2021-04-07 11:46:56 C 14 14 03.927 +01 18 58.24 – U F51
2021-04-07 12:06:15 C 14 14 04.282 +01 17 50.90 – U F51
2021-04-08 01:31:18 C 14 14 38.33 +00 29 05.1 – V L01
2021-04-08 01:33:33 C 14 14 38.39 +00 28 56.0 – V L01
2021-04-08 02:19:22 C 14 14 39.57 +00 26 06.8 – V L01
2021-04-08 02:23:51 C 14 14 39.71 +00 25 50.6 – V L01
2021-04-08 02:28:21 C 14 14 39.84 +00 25 33.2 – V L01
2021-04-08 04:32:32 C 14 14 52.20 +00 18 04.9 – V I52
2021-04-08 04:34:57 C 14 14 52.31 +00 17 55.3 – V I52
2021-04-08 04:37:22 C 14 14 52.34 +00 17 47.3 – V I52
2021-04-08 04:39:47 C 14 14 52.43 +00 17 37.8 – V I52
2021-04-08 08:06:26 C 14 14 57.44 +00 04 34.3 – V H01
2021-04-08 08:11:33 C 14 14 57.56 +00 04 14.7 – V H01
2021-04-08 08:31:05 C 14 14 57.98 +00 03 00.2 – V H01
2021-04-08 08:36:16 C 14 14 58.10 +00 02 40.5 – V H01
2021-04-08 14:28:53 C 14 15 10.201 -00 19 44.04 – V 568
2021-04-08 14:30:17 C 14 15 10.242 -00 19 49.63 – V 568
2021-04-08 14:31:43 C 14 15 10.281 -00 19 55.14 – V 568
2021-04-08 14:33:09 C 14 15 10.316 -00 20 00.85 – V 568
2021-04-09 00:45:37 C 14 15 42.12 -01 01 41.9 – V 033
2021-04-09 00:49:07 C 14 15 42.21 -01 01 56.3 – V 033
2021-04-09 00:52:37 C 14 15 42.34 -01 02 10.8 – V 033
2021-04-11 13:47:28 C 14 18 48.73 -05 48 44.1 – V 474
2021-04-11 13:51:45 C 14 18 48.88 -05 49 07.5 – V 474
2021-04-11 13:56:03 C 14 18 49.07 -05 49 31.1 – V 474
2021-04-12 07:35:08 C 14 19 47.89 -07 30 22.8 – u 807
2021-04-12 07:38:30 C 14 19 48.05 -07 30 42.2 – u 807
2021-04-12 07:41:54 C 14 19 48.16 -07 31 02.1 – u 807
2021-04-14 05:46:28 C 14 23 00.29 -12 39 47.3 – V I52
2021-04-14 05:48:30 C 14 23 00.46 -12 40 02.3 – V I52
2021-04-14 05:49:06 C 14 23 00.48 -12 40 07.5 – V I52
2021-04-14 05:51:08 C 14 23 00.54 -12 40 21.8 – V I52
2021-04-17 10:01:36 C 14 30 00.602 -24 03 31.89 – U F52
2021-04-17 10:16:32 C 14 30 01.687 -24 06 11.82 – U F52
2021-04-17 10:31:23 C 14 30 02.725 -24 08 51.82 – U F52
2021-04-17 10:46:13 C 14 30 03.761 -24 11 30.70 – U F52
2021-04-19 13:38:28 C 14 37 12.02 -34 14 52.5 – V 474
2021-04-19 13:39:45 C 14 37 12.15 -34 15 09.3 – V 474
2021-04-19 13:41:01 C 14 37 12.32 -34 15 25.8 – V 474
2021-04-19 13:42:18 C 14 37 12.46 -34 15 42.5 – V 474