2010 GU21

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5639274455 ± 1.37e-07
Semi-major axis (a)2.1804222531 AU ± 1.14e-06
Inclination (i)3.16279555° ± 2.46e-06
Long. of Asc. Node (Ω)56.97932704° ± 1.53e-05
Arg. of Perihelion (ω)201.59978378° ± 2.14e-05
Mean Anomaly (M)289.31773663° ± 1.22e-03
Mean Motion (n)0.3061268111°/day ± 2.40e-07
Perihelion dist (q)0.95082230 AU ± 5.79e-07
Aphelion dist (Q)3.41002220 AU ± 1.80e-06
Orbital Period3.21966665 yr ± 2.52e-06
Physical Parameters
H (abs. magnitude)21.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.338″
Uncertainty1
Orbit TypeApollo
MOID0.010627 AU
Observations Used414
Radar Obs Used5
Oppositions1
Arc Total2010-2010
First Observation Used2010-02-20
Last Observation Used2010-09-14
Observations (442)
Date Type RA Dec Mag Band Observatory
2010-02-20 12:15:18 C 12 46 37.297 +02 58 46.50 V F51
2010-02-24 13:57:05 C 12 50 03.258 +03 00 55.78 V F51
2010-02-24 14:09:29 C 12 50 03.619 +03 00 56.08 V F51
2010-04-05 08:07:03 C 13 15 02.62 +06 09 52.5 r 703
2010-04-05 08:17:03 C 13 15 02.88 +06 09 56.8 r 703
2010-04-05 08:27:03 C 13 15 02.95 +06 10 01.7 r 703
2010-04-05 08:37:03 C 13 15 03.13 +06 10 03.5 r 703
2010-04-08 20:47:24 C 13 18 04.90 +06 40 28.6 r J75
2010-04-08 20:49:39 C 13 18 04.95 +06 40 29.2 r J75
2010-04-08 21:05:59 C 13 18 05.52 +06 40 36.3 r J75
2010-04-08 21:08:15 C 13 18 05.56 +06 40 36.9 r J75
2010-04-08 21:24:33 C 13 18 05.97 +06 40 42.8 r J75
2010-04-08 21:26:51 C 13 18 06.11 +06 40 43.8 r J75
2010-04-08 23:57:35 C 13 18 10.51 +06 41 32.7 u J95
2010-04-09 00:03:23 C 13 18 10.68 +06 41 34.9 u J95
2010-04-09 00:09:22 C 13 18 10.87 +06 41 37.1 u J95
2010-04-09 00:57:42 C 13 18 11.65 +06 41 57.2 u 118
2010-04-09 01:00:56 C 13 18 11.75 +06 41 58.2 u 118
2010-04-09 01:04:09 C 13 18 11.85 +06 41 59.5 u 118
2010-04-09 01:07:24 C 13 18 11.96 +06 42 00.7 u 118
2010-04-09 01:12:15 C 13 18 12.11 +06 42 02.4 u 118
2010-04-09 03:22:33 C 13 18 16.58 +06 42 52.2 v 204
2010-04-09 03:26:19 C 13 18 20.46 +06 42 54.3 o H26
2010-04-09 03:29:44 C 13 18 20.52 +06 42 55.3 o H26
2010-04-09 03:29:59 C 13 18 16.85 +06 42 54.9 v 204
2010-04-09 03:33:02 C 13 18 17.00 +06 43 02.0 r J75
2010-04-09 03:37:38 C 13 18 17.12 +06 42 57.8 v 204
2010-04-09 03:40:01 C 13 18 20.85 +06 43 01.5 o H26
2010-04-09 03:40:03 C 13 18 17.24 +06 43 04.9 r J75
2010-04-09 03:42:22 C 13 18 17.31 +06 43 05.7 r J75
2010-04-09 03:44:27 C 13 18 21.05 +06 43 03.9 o H26
2010-04-09 03:47:49 C 13 18 21.18 +06 43 05.1 o H26
2010-04-09 03:51:14 C 13 18 21.29 +06 43 06.6 o H26
2010-04-09 03:56:19 C 13 18 17.76 +06 43 10.8 r J75
2010-04-09 04:29:46 C 13 18 23.48 +06 43 29.1 o H11
2010-04-09 04:32:53 C 13 18 23.55 +06 43 30.4 o H11
2010-04-09 04:35:54 C 13 18 23.67 +06 43 31.4 o H11
2010-04-09 04:49:16 C 13 18 23.38 +06 43 31.6 u H36
2010-04-09 04:54:27 C 13 18 23.54 +06 43 33.8 u H36
2010-04-09 04:59:38 C 13 18 23.69 +06 43 35.9 u H36
2010-04-09 06:10:20 C 13 18 25.40 +06 44 02.5 r H21
2010-04-09 06:19:24 C 13 18 25.67 +06 44 06.0 r H21
2010-04-09 06:28:28 C 13 18 25.93 +06 44 09.3 r H21
2010-04-09 07:23:15 C 13 18 28.67 +06 44 36.3 c 854
2010-04-09 07:26:37 C 13 18 28.76 +06 44 38.1 c 926
2010-04-09 07:31:34 C 13 18 28.88 +06 44 39.7 c 854
2010-04-09 07:31:36 C 13 18 28.92 +06 44 40.3 c 926
2010-04-09 07:36:35 C 13 18 29.07 +06 44 42.2 c 926
2010-04-09 07:42:38 C 13 18 29.23 +06 44 43.5 c 854
2010-04-09 08:24:49 C 13 18 30.12 +06 44 58.5 r H06
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2010-05-04 06:52:00 42124.6914 1 Hz 2380 -1 -1
2010-05-04 07:56:00 21020198.38 1 us 2380 -1 -1
2010-05-05 08:06:00 -9422.81 0.25 Hz 2380 -1 -1
2010-05-05 08:41:00 20500627.74 1 us 2380 -1 -1
2010-05-06 09:23:00 21851075.43 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)