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
2010-04-19 22:16:46 C 13 36 53.77 +08 39 30.3 o 511
2010-04-19 22:38:40 C 13 36 55.82 +08 39 40.9 v B75
2010-04-19 22:40:09 C 13 36 55.90 +08 39 40.8 v B75
2010-04-19 22:42:11 C 13 36 56.20 +08 39 42.5 v B75
2010-04-20 21:41:13 C 13 40 02.97 +08 53 02.4 c A48
2010-04-20 21:46:29 C 13 40 03.61 +08 53 05.1 c A48
2010-04-20 21:51:46 C 13 40 04.31 +08 53 08.1 c A48
2010-04-20 21:57:03 C 13 40 04.94 +08 53 11.7 c A48
2010-04-21 00:09:59 C 13 40 21.36 +08 54 30.0 r 473
2010-04-21 00:14:59 C 13 40 21.98 +08 54 33.0 r 473
2010-04-21 00:17:59 C 13 40 22.37 +08 54 35.0 r 473
2010-04-21 01:05:59 C 13 40 22.80 +08 54 36.0 r 473
2010-04-21 03:32:03 C 13 40 55.32 +08 56 36.1 o H26
2010-04-21 03:33:19 C 13 40 55.51 +08 56 36.6 o H26
2010-04-21 03:34:33 C 13 40 55.68 +08 56 37.4 o H26
2010-04-21 03:37:03 C 13 40 55.99 +08 56 38.9 o H26
2010-04-21 03:38:18 C 13 40 56.16 +08 56 39.8 o H26
2010-04-21 03:39:31 C 13 40 56.33 +08 56 40.5 o H26
2010-04-21 03:40:46 C 13 40 56.51 +08 56 41.3 o H26
2010-04-21 03:42:02 C 13 40 56.66 +08 56 42.3 o H26
2010-04-21 06:27:41 C 13 41 17.96 +08 58 29.9 o H21
2010-04-21 06:37:17 C 13 41 19.20 +08 58 35.7 o H21
2010-04-21 06:39:36 C 13 41 19.51 +08 58 37.2 o H21
2010-04-21 06:41:09 C 13 41 19.71 +08 58 38.0 o H21
2010-04-21 23:01:41 C 13 43 58.16 +09 08 49.3 u 511
2010-04-21 23:06:53 C 13 43 58.92 +09 08 52.6 u 511
2010-04-21 23:08:37 C 13 43 59.17 +09 08 53.7 u 511
2010-04-21 23:10:20 C 13 43 59.42 +09 08 54.8 u 511
2010-04-21 23:12:04 C 13 43 59.67 +09 08 56.0 u 511
2010-04-21 23:13:49 C 13 43 59.92 +09 08 57.1 u 511
2010-04-21 23:15:31 C 13 44 00.18 +09 08 58.2 u 511
2010-04-21 23:17:15 C 13 44 00.43 +09 08 59.4 u 511
2010-04-21 23:19:00 C 13 44 00.68 +09 09 00.5 u 511
2010-04-21 23:20:43 C 13 44 00.93 +09 09 01.6 u 511
2010-04-21 23:22:25 C 13 44 01.19 +09 09 02.7 u 511
2010-04-22 21:14:38 C 13 48 00.78 +09 23 33.7 r A17
2010-04-22 21:40:27 C 13 48 05.29 +09 23 52.3 r A17
2010-04-22 22:06:42 C 13 48 09.87 +09 24 11.1 r A17
2010-04-23 09:03:06 C 13 50 17.80 +09 32 26.3 r H10
2010-04-23 09:39:17 C 13 50 24.55 +09 32 51.2 r H10
2010-04-23 20:05:07 C 13 52 49.89 +09 40 07.2 u 510
2010-04-23 20:15:19 C 13 52 52.04 +09 40 15.4 u 510
2010-04-23 20:18:42 C 13 52 52.75 +09 40 18.1 u 510
2010-04-23 20:25:29 C 13 52 54.19 +09 40 23.6 u 510
2010-04-23 21:34:07 C 13 53 10.15 +09 41 34.0 w I99
2010-04-23 21:41:28 C 13 53 11.67 +09 41 39.6 w I99
2010-04-23 21:50:49 C 13 53 13.59 +09 41 47.8 w I99
2010-04-24 05:27:33 C 13 55 02.05 +09 47 48.0 o G56
2010-04-24 05:30:36 C 13 55 02.80 +09 47 50.4 o G56
2010-04-24 05:34:16 C 13 55 03.59 +09 47 54.3 o G56
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)