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
2005-04-01 18:40:39 C 21 24 25.56 -19 41 38.1 r E12
2005-04-01 18:51:41 C 21 24 27.10 -19 41 22.7 r E12
2005-04-01 19:02:36 C 21 24 28.58 -19 41 08.1 r E12
2005-04-01 19:13:41 C 21 24 30.06 -19 40 53.1 r E12
2005-04-02 18:32:38 C 21 27 43.28 -19 08 36.5 r E12
2005-04-02 18:37:51 C 21 27 43.97 -19 08 29.4 r E12
2005-04-02 18:43:03 C 21 27 44.75 -19 08 21.8 r E12
2005-04-02 18:48:16 C 21 27 45.43 -19 08 15.5 r E12
2005-04-02 18:57:34 C 21 27 46.72 -19 08 01.9 r E12
2005-04-02 19:00:42 C 21 27 47.14 -19 07 57.9 r E12
2005-04-02 19:03:50 C 21 27 47.55 -19 07 53.5 r E12
2005-04-02 19:06:57 C 21 27 47.90 -19 07 48.8 r E12
2005-04-02 19:11:23 C 21 27 48.586 -19 07 43.10 r 413
2005-04-02 19:17:53 C 21 27 49.481 -19 07 34.05 r 413
2005-04-05 19:00:12 C 21 37 45.042 -17 25 25.69 r 413
2005-04-05 19:06:42 C 21 37 45.936 -17 25 16.18 r 413
2005-04-06 19:07:33 C 21 41 06.043 -16 50 05.54 r 413
2005-04-06 19:14:03 C 21 41 06.931 -16 49 56.06 r 413
2005-04-09 18:27:01 C 21 51 03.07 -15 02 42.8 r E12
2005-04-09 18:36:50 C 21 51 04.41 -15 02 26.9 r E12
2005-04-09 18:46:39 C 21 51 05.82 -15 02 13.3 r E12
2005-04-09 18:56:31 C 21 51 07.19 -15 01 57.8 r E12
2005-04-10 19:10:49 C 21 54 31.18 -14 24 30.1 r E12
2005-04-10 19:12:04 C 21 54 31.32 -14 24 26.5 r E12
2005-04-10 19:13:20 C 21 54 31.47 -14 24 24.4 r E12
2005-04-10 19:14:34 C 21 54 31.67 -14 24 22.9 r E12
2005-04-11 18:49:21 C 21 57 50.79 -13 47 25.0 r E12
2005-04-11 18:56:38 C 21 57 51.84 -13 47 14.0 r E12
2005-04-11 19:03:52 C 21 57 52.77 -13 47 02.8 r E12
2005-04-11 19:11:09 C 21 57 53.78 -13 46 51.5 r E12
2005-04-15 19:21:04 C 22 11 33.416 -11 11 14.51 r 413
2005-04-15 19:27:34 C 22 11 34.333 -11 11 03.74 r 413
2005-04-19 19:21:19 C 22 25 27.343 -08 28 06.51 r 413
2005-04-19 19:27:19 C 22 25 28.204 -08 27 56.24 r 413
2005-04-21 19:32:14 C 22 32 33.25 -07 03 22.7 r 413
2005-04-27 19:32:23 C 22 54 23.60 -02 39 21.7 r 413
2005-04-27 19:38:22 C 22 54 24.53 -02 39 10.2 r 413
2005-04-28 19:27:30 C 22 58 07.600 -01 54 02.57 r 413
2005-04-28 19:37:29 C 22 58 09.149 -01 53 43.52 r 413
2005-04-29 19:14:55 C 23 01 52.419 -01 08 35.50 r 413
2005-04-29 19:22:54 C 23 01 53.676 -01 08 20.08 r 413
2005-04-29 19:44:04 C 23 01 56.992 -01 07 39.48 r 413
2005-04-30 19:18:42 C 23 05 41.957 -00 22 14.51 r 413
2005-04-30 19:31:21 C 23 05 43.961 -00 21 50.09 r 413
2005-05-01 19:39:22 C 23 09 36.444 +00 25 00.07 r 413
2005-05-08 19:42:42 C 23 37 46.62 +05 59 12.7 r E12
2005-05-18 19:23:07 C 00 22 27.44 +14 04 59.4 r E12
2005-05-18 19:30:31 C 00 22 28.86 +14 05 14.4 r E12
2005-05-18 19:37:57 C 00 22 30.31 +14 05 29.3 r E12
2005-05-18 19:45:23 C 00 22 31.78 +14 05 44.2 r E12
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)