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
2010-04-28 06:07:20 C 14 30 38.01 +11 25 29.1 o H21
2010-04-28 07:30:27 C 14 31 23.72 +11 27 36.3 o H10
2010-04-28 07:37:57 C 14 31 27.59 +11 27 46.0 o H10
2010-04-28 07:45:28 C 14 31 31.47 +11 27 55.6 o H10
2010-04-28 21:25:50 C 14 39 53.86 +11 45 43.8 u A53
2010-04-28 21:29:13 C 14 39 55.98 +11 45 50.3 c A48
2010-04-28 21:31:05 C 14 39 57.12 +11 45 51.7 u A53
2010-04-28 21:31:35 C 14 39 57.32 +11 45 53.6 c A48
2010-04-28 21:33:57 C 14 39 58.83 +11 45 56.6 c A48
2010-04-28 21:36:19 C 14 40 00.23 +11 46 00.6 c A48
2010-04-28 21:36:36 C 14 40 00.45 +11 45 59.7 u A53
2010-04-28 21:42:08 C 14 40 03.83 +11 46 07.2 u A53
2010-04-28 21:47:53 C 14 40 07.41 +11 46 16.5 u A53
2010-04-28 22:19:35 C 14 40 26.93 +11 46 46.4 u 510
2010-04-28 22:25:54 C 14 40 30.85 +11 46 55.5 u 510
2010-04-28 22:32:13 C 14 40 34.76 +11 47 04.8 u 510
2010-04-29 04:17:31 C 14 44 30.94 +11 55 50.6 o H21
2010-04-29 04:22:51 C 14 44 34.44 +11 55 58.8 o H21
2010-04-29 04:28:43 C 14 44 38.29 +11 56 07.6 o H21
2010-04-29 04:34:43 C 14 44 42.24 +11 56 16.6 o H21
2010-04-29 04:40:43 C 14 44 46.18 +11 56 25.9 o H21
2010-04-29 13:03:39 C 14 50 57.69 +12 09 07.4 u 379
2010-04-29 13:13:14 C 14 51 04.62 +12 09 22.5 u 379
2010-04-29 13:15:04 C 14 51 05.99 +12 09 25.6 u 379
2010-04-29 13:25:06 C 14 51 13.23 +12 09 41.4 u 379
2010-04-29 13:26:56 C 14 51 14.54 +12 09 45.0 u 379
2010-04-29 13:47:08 C 14 51 29.19 +12 10 17.1 u 379
2010-04-29 14:01:44 C 14 51 39.78 +12 10 39.9 u 379
2010-04-29 14:04:25 C 14 51 41.76 +12 10 44.0 u 379
2010-04-29 14:07:08 C 14 51 43.73 +12 10 48.3 u 379
2010-04-29 14:13:32 C 14 51 48.35 +12 10 58.5 u 379
2010-04-29 14:16:12 C 14 51 50.28 +12 11 02.4 u 379
2010-04-29 21:14:48 C 14 57 33.44 +12 21 07.9 u 560
2010-04-29 21:15:46 C 14 57 34.22 +12 21 09.5 u 560
2010-04-29 21:16:24 C 14 57 34.74 +12 21 10.5 u 560
2010-04-29 21:17:15 C 14 57 35.43 +12 21 12.4 c A48
2010-04-29 21:18:59 C 14 57 36.87 +12 21 15.4 c A48
2010-04-29 21:20:55 C 14 57 38.40 +12 21 18.2 c A48
2010-04-29 21:22:51 C 14 57 39.95 +12 21 21.8 c A48
2010-04-29 21:24:47 C 14 57 41.54 +12 21 24.7 c A48
2010-04-29 23:37:35 C 14 59 29.25 +12 25 05.7 u 160
2010-04-29 23:39:20 C 14 59 30.68 +12 25 08.6 u 160
2010-04-29 23:40:57 C 14 59 32.01 +12 25 10.9 u 160
2010-04-30 22:39:19 C 15 22 26.871 +13 02 36.45 r 089
2010-04-30 22:40:41 C 15 22 28.354 +13 02 38.72 r 089
2010-04-30 23:56:14 C 15 23 51.391 +13 04 42.39 r 089
2010-04-30 23:57:37 C 15 23 52.894 +13 04 44.78 r 089
2010-04-30 23:58:59 C 15 23 54.446 +13 04 46.94 r 089
2010-05-01 00:51:48 C 15 24 53.550 +13 06 10.51 r 089
2010-05-01 00:53:10 C 15 24 55.079 +13 06 12.31 r 089
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)