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
2010-05-04 03:54:52 C 17 48 17.46 +13 46 17.0 o H26
2010-05-04 04:01:30 C 17 48 35.21 +13 46 04.3 o H26
2010-05-04 04:01:51 C 17 48 36.19 +13 46 03.2 o H26
2010-05-04 04:02:34 C 17 48 38.15 +13 46 01.8 o H26
2010-05-04 04:02:57 C 17 48 39.11 +13 46 01.0 o H26
2010-05-04 04:03:19 C 17 48 40.08 +13 46 01.2 o H26
2010-05-04 04:03:42 C 17 48 41.13 +13 46 00.2 o H26
2010-05-04 04:04:03 C 17 48 42.09 +13 45 59.2 o H26
2010-05-04 04:04:47 C 17 48 44.06 +13 45 57.7 o H26
2010-05-04 07:58:25 C 17 59 10.80 +13 37 12.4 o H21
2010-05-04 08:03:23 C 17 59 24.23 +13 36 58.9 o H21
2010-05-04 08:08:41 C 17 59 38.38 +13 36 44.5 o H21
2010-05-04 08:14:17 C 17 59 53.35 +13 36 29.2 o H21
2010-05-05 08:47:56 C 19 10 18.92 +11 47 43.9 o H21
2010-05-05 08:50:44 C 19 10 26.68 +11 47 27.9 o H21
2010-05-05 08:52:43 C 19 10 32.22 +11 47 16.2 o H21
2010-05-05 08:54:36 C 19 10 37.44 +11 47 05.4 o H21
2010-05-05 08:58:38 C 19 10 48.62 +11 46 41.9 o H21
2010-05-05 09:00:10 C 19 10 52.91 +11 46 33.1 o H21
2010-05-05 09:03:21 C 19 11 01.63 +11 46 14.9 o H21
2010-07-08 05:20:57 S 01 10 59.40 -02 26 51.3 L C51
2010-07-08 08:31:28 S 01 11 03.76 -02 26 37.8 L C51
2010-07-08 11:41:59 S 01 11 08.04 -02 26 25.2 L C51
2010-07-08 14:52:30 S 01 11 12.33 -02 26 12.0 L C51
2010-07-08 16:27:40 S 01 11 14.44 -02 26 05.4 L C51
2010-07-08 18:02:50 S 01 11 16.54 -02 25 59.7 L C51
2010-07-08 18:03:01 S 01 11 16.55 -02 25 59.3 L C51
2010-07-08 19:38:11 S 01 11 18.65 -02 25 53.0 L C51
2010-07-08 21:13:21 S 01 11 20.74 -02 25 47.2 L C51
2010-07-08 22:48:42 S 01 11 22.82 -02 25 41.0 L C51
2010-07-09 01:59:13 S 01 11 26.92 -02 25 28.6 L C51
2010-07-09 05:09:44 S 01 11 30.99 -02 25 16.9 L C51
2010-07-09 08:20:16 S 01 11 35.07 -02 25 06.3 L C51
2010-07-09 11:30:47 S 01 11 39.03 -02 24 53.7 L C51
2010-08-19 07:15:55 C 00 50 53.05 -04 52 42.4 o H21
2010-08-19 07:23:42 C 00 50 52.51 -04 52 45.0 o H21
2010-08-19 07:32:35 C 00 50 51.92 -04 52 48.2 o H21
2010-08-19 07:49:14 C 00 50 50.76 -04 52 53.6 o H21
2010-09-14 11:27:23 C 00 03 57.634 -08 06 38.37 V F51
2010-09-14 11:46:10 C 00 03 56.204 -08 06 42.43 V F51
2010-09-14 12:07:03 C 00 03 54.638 -08 06 47.00 V F51
2010-09-14 12:24:47 C 00 03 53.292 -08 06 50.53 V F51
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)