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
2023-06-28 00:43:30 C 10 35 04.654 -14 35 55.54 V W68
2023-06-30 23:45:05 C 10 49 01.673 -14 13 43.36 V W68
2023-06-30 23:52:53 C 10 49 03.180 -14 13 39.90 V W68
2023-06-30 23:56:48 C 10 49 03.917 -14 13 38.24 V W68
2023-07-01 00:11:50 C 10 49 06.775 -14 13 33.64 V W68
2023-07-02 17:52:33 C 10 57 08.686 -13 59 11.72 V M22
2023-07-02 17:57:15 C 10 57 09.564 -13 59 10.36 V M22
2023-07-02 18:12:30 C 10 57 12.463 -13 59 04.67 V M22
2023-07-03 17:39:00 C 11 01 40.433 -13 50 36.42 V M22
2023-07-03 18:11:45 C 11 01 46.558 -13 50 23.86 V M22
2023-07-03 18:25:52 C 11 01 49.234 -13 50 18.82 V M22
2023-07-05 00:23:19 C 11 07 28.231 -13 39 05.76 V W68
2023-07-05 00:40:23 C 11 07 31.385 -13 38 58.49 V W68
2023-07-05 01:02:18 C 11 07 35.455 -13 38 50.64 V W68
2023-07-05 16:54:37 C 11 10 33.893 -13 32 43.58 V M22
2023-07-05 16:59:52 C 11 10 34.855 -13 32 41.64 V M22
2023-07-05 17:22:22 C 11 10 38.983 -13 32 32.75 V M22
2023-07-14 23:06:37 C 11 50 16.982 -11 56 52.44 V W68
2023-07-14 23:37:34 C 11 50 22.181 -11 56 37.64 V W68
2023-07-15 00:01:16 C 11 50 26.167 -11 56 26.48 V W68
2023-07-15 00:05:50 C 11 50 26.940 -11 56 24.22 V W68
2023-07-16 00:00:59 C 11 54 31.114 -11 45 09.58 V W68
2023-07-16 00:24:46 C 11 54 35.069 -11 44 58.27 V W68
2023-07-16 00:46:00 C 11 54 38.635 -11 44 48.16 V W68
2023-07-16 01:07:21 C 11 54 42.192 -11 44 37.61 V W68
2023-07-17 16:52:34 C 12 01 22.886 -11 25 37.63 V M22
2023-07-17 16:57:09 C 12 01 23.662 -11 25 35.22 V M22
2023-07-17 17:17:04 C 12 01 26.866 -11 25 25.82 V M22
2023-07-17 17:40:05 C 12 01 30.643 -11 25 14.34 V M22
2023-07-27 23:47:31 C 12 40 24.499 -09 20 21.52 V W68
2023-07-27 23:51:25 C 12 40 25.030 -09 20 19.14 V W68
2023-07-27 23:59:15 C 12 40 26.220 -09 20 13.99 V W68
2023-07-28 00:24:43 C 12 40 29.952 -09 20 01.50 V W68
2023-07-29 00:12:52 C 12 44 02.760 -09 07 22.37 V W68
2023-07-29 00:17:28 C 12 44 03.408 -09 07 20.75 V W68
2023-07-29 00:41:57 C 12 44 06.953 -09 07 07.18 V W68
2023-07-29 00:49:21 C 12 44 08.011 -09 07 04.08 V W68
2023-08-01 17:08:16 C 12 56 57.955 -08 19 21.94 V M22
2023-08-01 17:12:56 C 12 56 58.630 -08 19 19.70 V M22
2023-08-01 17:27:14 C 12 57 00.641 -08 19 11.28 V M22
2023-08-01 17:35:10 C 12 57 01.697 -08 19 08.29 V M22
2023-08-04 17:09:43 C 13 07 03.434 -07 39 35.39 V M22
2023-08-04 17:14:56 C 13 07 04.147 -07 39 32.40 V M22
2023-08-04 17:22:45 C 13 07 05.208 -07 39 28.30 V M22
2023-08-04 17:39:13 C 13 07 07.430 -07 39 18.68 V M22
2023-08-06 00:05:08 C 13 11 17.306 -07 22 16.61 V W68
2023-08-06 00:13:01 C 13 11 18.367 -07 22 11.78 V W68
2023-08-06 00:18:20 C 13 11 19.070 -07 22 09.44 V W68
2023-08-06 00:48:11 C 13 11 23.059 -07 21 52.13 V W68
2023-08-07 17:09:10 C 13 16 49.224 -06 59 03.30 V M22
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)