2021 GB4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1659832812 ± 2.00e+00
Semi-major axis (a)1.0837934889 AU ± 3.00e+00
Inclination (i)24.45550877° ± 4.00e+00
Long. of Asc. Node (Ω)198.45543102° ± 5.00e+00
Arg. of Perihelion (ω)80.56851790° ± 6.00e+00
Mean Anomaly (M)330.83080081° ± 1.60e-01
Mean Motion (n)0.8736139800°/day ± 3.63e+00
Perihelion dist (q)0.90389690 AU ± 3.31e+00
Aphelion dist (Q)1.26357250 AU ± 4.12e+00
Orbital Period1.12819580 yr ± 4.68e+00
Physical Parameters
H (abs. magnitude)24.63
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.310″
Uncertainty3
Orbit TypeApollo
MOID0.022518 AU
Observations Used58
Oppositions1
Arc Total2021-2021
First Observation Used
Last Observation Used2021-04-12
Observations (59)
Date Type RA Dec Mag Band Observatory
2021-04-07 06:04:28 C 10 37 27.880 -18 54 52.18 U F52
2021-04-07 06:26:32 C 10 37 26.265 -18 46 28.36 V F52
2021-04-07 06:48:42 C 10 37 24.610 -18 37 59.97 U F52
2021-04-07 14:31:06 C 10 37 02.72 -15 28 57.0 V 474
2021-04-07 14:32:00 C 10 37 02.68 -15 28 34.8 V 474
2021-04-07 14:33:47 C 10 37 02.60 -15 27 50.2 V 474
2021-04-07 18:50:17 C 10 37 14.51 -13 45 18.5 V 595
2021-04-07 19:11:02 C 10 37 13.30 -13 36 24.9 V 595
2021-04-07 19:23:58 C 10 37 12.51 -13 30 51.1 V 595
2021-04-07 19:30:42 C 10 37 12.10 -13 27 56.3 V 595
2021-04-07 19:35:29 C 10 37 14.47 -13 25 46.0 V I93
2021-04-07 19:46:35 C 10 37 13.82 -13 20 59.7 V I93
2021-04-07 19:57:48 C 10 37 13.10 -13 16 08.7 V I93
2021-04-07 20:03:18 C 10 37 10.97 -13 13 49.7 V 203
2021-04-07 20:13:50 C 10 37 10.31 -13 09 15.8 V 203
2021-04-07 20:26:54 C 10 37 09.49 -13 03 35.4 V 203
2021-04-07 20:53:38 C 10 37 07.43 -12 51 52.4 V 104
2021-04-07 20:59:43 C 10 37 07.05 -12 49 12.8 V 104
2021-04-07 21:08:50 C 10 37 06.38 -12 45 13.0 V 104
2021-04-07 21:26:14 C 10 37 04.76 -12 37 37.0 V L01
2021-04-07 21:28:48 C 10 37 04.60 -12 36 29.5 V L01
2021-04-07 21:31:22 C 10 37 04.44 -12 35 21.7 V L01
2021-04-07 21:33:58 C 10 37 04.29 -12 34 13.3 V L01
2021-04-07 21:36:57 C 10 37 04.10 -12 32 54.0 V L01
2021-04-07 21:40:48 C 10 37 04.40 -12 31 11.5 V K63
2021-04-07 21:45:43 C 10 37 04.07 -12 29 00.2 V K63
2021-04-07 21:50:36 C 10 37 03.84 -12 26 50.9 V K63
2021-04-07 23:08:43 C 10 36 59.54 -11 52 14.2 V 204
2021-04-07 23:21:47 C 10 36 58.84 -11 46 23.0 V 204
2021-04-08 01:37:02 C 10 36 59.28 -10 41 30.8 X Y00
2021-04-08 01:46:37 C 10 36 58.53 -10 37 07.7 X Y00
2021-04-08 01:56:13 C 10 36 57.81 -10 32 43.5 X Y00
2021-04-08 03:56:12 C 10 37 05.31 -09 41 03.4 V I52
2021-04-08 03:56:29 C 10 37 05.30 -09 40 55.7 V I52
2021-04-08 03:56:45 C 10 37 05.29 -09 40 48.1 V I52
2021-04-08 03:57:02 C 10 37 05.27 -09 40 40.4 V I52
2021-04-08 19:11:11 C 10 36 51.64 -02 13 23.7 V L18
2021-04-08 19:13:33 C 10 36 51.46 -02 12 09.3 V L18
2021-04-08 19:15:57 C 10 36 51.40 -02 10 56.1 V L18
2021-04-08 19:51:48 C 10 36 52.31 -01 52 24.2 V K87
2021-04-08 20:07:23 C 10 36 51.39 -01 44 19.9 V K87
2021-04-08 20:44:57 C 10 36 48.87 -01 24 54.2 V 033
2021-04-08 20:45:28 C 10 36 48.85 -01 24 39.6 V 033
2021-04-08 20:45:57 C 10 36 48.80 -01 24 23.5 V 033
2021-04-09 04:14:16 C 10 36 46.20 +02 34 47.4 V I52
2021-04-09 04:14:27 C 10 36 46.18 +02 34 53.4 V I52
2021-04-09 04:14:39 C 10 36 46.18 +02 34 59.5 V I52
2021-04-09 04:14:50 C 10 36 46.16 +02 35 06.0 V I52
2021-04-09 20:04:42 C 10 36 35.75 +11 23 07.2 V 033
2021-04-09 20:05:11 C 10 36 35.72 +11 23 23.9 V 033