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
2021-06-27 06:00:14 C 10 07 42.12 -11 20 23.1 V T08
2021-06-27 06:05:33 C 10 07 43.15 -11 20 24.1 V T08
2021-06-27 06:13:32 C 10 07 44.70 -11 20 25.9 V T08
2021-06-27 06:28:07 C 10 07 47.53 -11 20 30.2 V T08
2021-07-23 05:59:43 C 12 01 06.61 -12 12 42.0 V T05
2021-07-23 06:03:44 C 12 01 07.28 -12 12 42.3 V T05
2021-07-23 06:11:39 C 12 01 08.53 -12 12 41.5 V T05
2021-07-23 06:29:30 C 12 01 11.55 -12 12 41.2 V T05
2021-07-29 05:54:31 C 12 24 39.31 -12 00 07.0 V T08
2021-07-29 05:59:09 C 12 24 40.00 -12 00 06.9 V T08
2021-07-29 06:10:27 C 12 24 41.85 -12 00 05.5 V T08
2021-07-29 06:26:24 C 12 24 44.38 -12 00 03.3 V T08
2021-09-03 05:24:28 C 14 27 11.10 -08 33 56.3 V T08
2021-09-03 05:29:06 C 14 27 11.67 -08 33 54.5 V T08
2021-09-03 05:37:04 C 14 27 12.63 -08 33 51.6 V T08
2021-09-03 05:54:59 C 14 27 14.84 -08 33 45.3 V T08
2021-09-07 05:22:40 C 14 39 00.08 -07 58 05.1 V T08
2021-09-07 05:27:18 C 14 39 00.63 -07 58 02.1 V T08
2021-09-07 05:35:56 C 14 39 01.62 -07 57 59.1 V T08
2021-09-07 05:51:53 C 14 39 03.56 -07 57 53.0 V T08
2021-10-03 04:59:37 C 15 44 56.15 -02 53 01.1 V T05
2021-10-03 05:04:14 C 15 44 56.54 -02 52 59.6 V T05
2021-10-03 05:12:47 C 15 44 57.27 -02 52 54.0 V T05
2021-10-03 05:27:21 C 15 44 58.47 -02 52 45.3 V T05
2022-05-31 11:22:06 C 01 30 25.999 +23 38 06.22 U I41
2022-05-31 11:25:34 C 01 30 26.830 +23 38 12.01 U I41
2022-05-31 11:29:00 C 01 30 27.670 +23 38 17.59 U I41
2022-05-31 11:32:27 C 01 30 28.519 +23 38 23.39 U I41
2022-05-31 11:35:53 C 01 30 29.340 +23 38 29.29 U I41
2022-06-03 11:21:27 C 01 48 20.741 +25 32 54.49 U I41
2022-06-03 11:24:57 C 01 48 21.631 +25 32 59.89 U I41
2022-06-03 11:28:26 C 01 48 22.519 +25 33 05.29 U I41
2022-06-03 11:31:56 C 01 48 23.400 +25 33 10.58 U I41
2023-05-31 23:21:24 C 08 17 08.006 -14 53 03.77 V W68
2023-05-31 23:29:57 C 08 17 09.878 -14 53 05.57 V W68
2023-05-31 23:35:13 C 08 17 11.026 -14 53 07.12 V W68
2023-05-31 23:49:42 C 08 17 14.107 -14 53 11.40 V W68
2023-06-10 23:55:01 C 09 09 39.881 -15 32 58.02 V W68
2023-06-10 23:59:00 C 09 09 40.754 -15 32 58.63 V W68
2023-06-11 00:13:18 C 09 09 43.824 -15 32 58.42 V W68
2023-06-11 00:24:47 C 09 09 46.291 -15 32 58.88 V W68
2023-06-14 00:31:37 C 09 25 19.308 -15 33 15.23 V W68
2023-06-14 00:35:43 C 09 25 20.172 -15 33 14.98 V W68
2023-06-14 01:05:08 C 09 25 26.477 -15 33 13.39 V W68
2023-06-14 01:17:48 C 09 25 29.141 -15 33 13.14 V W68
2023-06-15 00:29:08 C 09 30 27.295 -15 32 14.68 V W68
2023-06-15 00:40:58 C 09 30 29.825 -15 32 14.03 V W68
2023-06-15 00:46:12 C 09 30 30.910 -15 32 13.88 V W68
2023-06-27 23:59:37 C 10 34 56.064 -14 36 08.35 V W68
2023-06-28 00:03:35 C 10 34 56.832 -14 36 07.24 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)