308242 (2005 GO21)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3399039890 ± 1.98e-08
Semi-major axis (a)0.7532653249 AU ± 4.84e-10
Inclination (i)24.92743501° ± 2.29e-06
Long. of Asc. Node (Ω)272.66917398° ± 7.44e-07
Arg. of Perihelion (ω)156.64470316° ± 3.90e-06
Mean Anomaly (M)47.30509206° ± 6.89e-06
Mean Motion (n)1.5076145224°/day ± 1.45e-09
Perihelion dist (q)0.49722744 AU ± 1.49e-08
Aphelion dist (Q)1.00930321 AU ± 1.49e-08
Orbital Period0.65376545 yr ± 6.31e-10
Physical Parameters
H (abs. magnitude)16.18
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.165″
Uncertainty0
Orbit TypeAten
MOID0.045073 AU
Observations Used523
Radar Obs Used8
Gaia Obs Used46
Oppositions6
Arc Total2005-2025
First Observation Used2005-04-01
Last Observation Used2025-08-31
Observations (550)
Date Type RA Dec Mag Band Observatory
2025-05-27 17:40:25 C 08 03 26.695 -27 09 55.37 V M22
2025-05-27 17:54:52 C 08 03 30.216 -27 09 51.26 V M22
2025-05-27 18:11:28 C 08 03 34.253 -27 09 46.62 V M22
2025-05-31 17:00:01 C 08 27 05.806 -26 36 13.93 V M22
2025-05-31 17:04:44 C 08 27 06.955 -26 36 11.74 V M22
2025-05-31 17:13:42 C 08 27 09.151 -26 36 07.38 V M22
2025-05-31 17:32:18 C 08 27 13.702 -26 35 58.56 V M22
2025-06-01 17:34:35 C 08 33 12.823 -26 24 38.12 V M22
2025-06-01 17:39:52 C 08 33 14.119 -26 24 35.53 V M22
2025-06-01 17:47:48 C 08 33 16.058 -26 24 31.10 V M22
2025-06-01 18:03:05 C 08 33 19.798 -26 24 23.29 V M22
2025-06-03 23:29:08 C 08 46 38.045 -25 55 12.00 V W68
2025-06-03 23:33:44 C 08 46 39.158 -25 55 09.26 V W68
2025-06-03 23:48:00 C 08 46 42.658 -25 54 59.94 V W68
2025-06-03 23:54:46 C 08 46 44.299 -25 54 55.91 V W68
2025-06-03 23:55:25 C 08 46 44.436 -25 54 55.69 V W68
2025-06-03 23:59:24 C 08 46 45.406 -25 54 53.53 V W68
2025-06-04 01:01:28 C 08 47 00.646 -25 54 14.11 V W68
2025-06-04 01:12:10 C 08 47 03.262 -25 54 07.74 V W68
2025-06-04 17:40:06 C 08 51 09.118 -25 44 00.49 V M22
2025-06-04 18:02:43 C 08 51 14.654 -25 43 45.77 V M22
2025-06-04 18:10:36 C 08 51 16.589 -25 43 40.58 V M22
2025-06-05 17:35:16 C 08 57 05.213 -25 28 23.48 V M22
2025-06-05 17:41:11 C 08 57 06.658 -25 28 19.45 V M22
2025-06-05 17:49:45 C 08 57 08.748 -25 28 13.66 V M22
2025-06-05 18:04:29 C 08 57 12.334 -25 28 03.36 V M22
2025-06-07 00:29:32 C 09 04 43.673 -25 06 40.64 V W68
2025-06-07 00:34:08 C 09 04 44.782 -25 06 36.86 V W68
2025-06-07 00:48:47 C 09 04 48.336 -25 06 25.99 V W68
2025-06-07 00:56:46 C 09 04 50.304 -25 06 19.58 V W68
2025-06-11 00:07:40 C 09 28 08.040 -23 49 07.97 V W68
2025-06-11 00:10:57 C 09 28 08.786 -23 49 04.91 V W68
2025-06-11 00:12:15 C 09 28 09.106 -23 49 03.65 V W68
2025-06-11 00:40:59 C 09 28 15.984 -23 48 37.37 V W68
2025-06-11 00:42:17 C 09 28 16.289 -23 48 36.22 V W68
2025-06-11 00:52:13 C 09 28 18.643 -23 48 27.04 V W68
2025-06-11 00:52:52 C 09 28 18.797 -23 48 26.60 V W68
2025-06-12 18:34:32 C 09 38 21.290 -23 10 01.60 V M22
2025-06-12 18:39:13 C 09 38 22.409 -23 09 56.59 V M22
2025-06-12 18:46:35 C 09 38 24.156 -23 09 49.50 V M22
2025-06-12 19:01:57 C 09 38 27.778 -23 09 34.52 V M22
2025-06-13 18:41:01 C 09 44 06.271 -22 46 39.72 V M22
2025-06-13 18:45:36 C 09 44 07.375 -22 46 35.08 V M22
2025-06-13 18:54:09 C 09 44 09.365 -22 46 26.54 V M22
2025-06-13 19:24:29 C 09 44 16.495 -22 45 55.12 V M22
2025-06-19 22:51:54 C 10 18 23.011 -20 07 14.56 V W68
2025-06-19 23:35:58 C 10 18 32.671 -20 06 23.00 V W68
2025-06-20 00:16:13 C 10 18 41.515 -20 05 35.59 V W68
2025-06-20 01:09:08 C 10 18 53.179 -20 04 33.02 V W68
2025-06-20 01:15:44 C 10 18 54.646 -20 04 25.43 V W68
Radar Observations (8)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-06-16 17:40:00 501233.664 2 Hz 8560 -14 -14
2012-06-16 18:00:00 498963.932 1 Hz 8560 -14 -14
2012-06-16 18:30:00 58163227.84 10 us 8560 -14 -14
2012-06-16 19:10:00 58024944.24 1 us 8560 -14 -14
2012-06-17 18:10:00 53527602.23 1 us 8560 -14 -14
2012-06-22 17:00:00 44438830.6 2.5 us 2380 -1 -1
2012-06-25 17:55:00 53578155.31 3 us 2380 -1 -1
2014-06-18 12:46:00 217960333.39 4 us 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)