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
2025-07-14 06:18:29 C 12 09 46.318 -07 49 39.97 V T08
2025-07-14 06:29:05 C 12 09 47.952 -07 49 26.54 V T08
2025-07-14 06:38:24 C 12 09 49.361 -07 49 14.66 V T08
2025-07-14 06:43:41 C 12 09 50.196 -07 49 07.79 V T08
2025-07-16 06:07:42 C 12 17 08.213 -06 49 30.22 V T05
2025-07-16 06:12:18 C 12 17 08.918 -06 49 24.35 V T05
2025-07-16 06:24:46 C 12 17 10.774 -06 49 08.44 V T05
2025-07-16 06:48:25 C 12 17 14.290 -06 48 38.95 V T05
2025-07-18 23:10:33 C 12 26 45.521 -05 28 20.53 V W68
2025-07-18 23:15:07 C 12 26 46.164 -05 28 15.31 V W68
2025-07-18 23:22:59 C 12 26 47.263 -05 28 05.27 V W68
2025-07-18 23:40:13 C 12 26 49.687 -05 27 43.78 V W68
2025-07-28 16:56:52 C 12 57 39.665 -00 47 17.23 V M22
2025-07-28 17:01:25 C 12 57 40.202 -00 47 11.83 V M22
2025-07-28 17:10:30 C 12 57 41.256 -00 47 01.25 V M22
2025-07-28 17:24:57 C 12 57 42.926 -00 46 44.40 V M22
2025-08-01 16:59:48 C 13 08 44.952 +01 04 26.80 V M22
2025-08-01 17:04:22 C 13 08 45.454 +01 04 32.20 V M22
2025-08-01 17:14:48 C 13 08 46.546 +01 04 44.44 V M22
2025-08-01 17:38:21 C 13 08 49.070 +01 05 11.65 V M22
2025-08-05 06:06:15 C 13 17 47.057 +02 42 00.32 V T05
2025-08-05 06:06:54 C 13 17 47.086 +02 42 01.08 V T05
2025-08-05 06:12:11 C 13 17 47.638 +02 42 07.13 V T05
2025-08-05 06:20:05 C 13 17 48.403 +02 42 16.09 V T05
2025-08-05 06:36:43 C 13 17 50.033 +02 42 35.32 V T05
2025-08-05 06:40:51 C 13 17 50.441 +02 42 39.85 V T05
2025-08-07 23:29:56 C 13 24 13.361 +03 56 56.51 V W68
2025-08-07 23:34:36 C 13 24 13.805 +03 57 01.37 V W68
2025-08-07 23:45:13 C 13 24 14.760 +03 57 13.64 V W68
2025-08-08 00:03:41 C 13 24 16.483 +03 57 34.63 V W68
2025-08-09 05:55:40 C 13 27 03.497 +04 31 20.82 V T05
2025-08-09 06:00:16 C 13 27 03.938 +04 31 25.90 V T05
2025-08-09 06:10:48 C 13 27 04.855 +04 31 37.92 V T05
2025-08-09 06:27:22 C 13 27 06.331 +04 31 57.22 V T05
2025-08-13 05:58:13 C 13 35 21.022 +06 20 36.35 V T05
2025-08-13 06:10:09 C 13 35 21.929 +06 20 49.70 V T05
2025-08-13 06:22:05 C 13 35 22.874 +06 21 03.38 V T05
2025-08-13 06:34:01 C 13 35 23.813 +06 21 16.92 V T05
2025-08-14 05:57:31 C 13 37 15.442 +06 47 53.38 V T05
2025-08-14 06:09:26 C 13 37 16.337 +06 48 07.20 V T05
2025-08-14 06:21:22 C 13 37 17.237 +06 48 20.59 V T05
2025-08-14 06:33:19 C 13 37 18.142 +06 48 34.27 V T05
2025-08-22 19:34:03 C 13 50 39.055 +10 42 50.51 W B38
2025-08-22 19:37:45 C 13 50 39.298 +10 42 53.96 W B38
2025-08-22 19:41:43 C 13 50 39.446 +10 42 58.97 W B38
2025-08-31 18:54:33 C 13 57 47.575 +14 51 59.26 W B38
2025-08-31 19:01:57 C 13 57 47.676 +14 52 08.00 W B38
2025-08-31 19:09:26 C 13 57 47.767 +14 52 15.96 W B38
2025-08-31 19:16:52 C 13 57 47.858 +14 52 25.25 W B38
2025-08-31 19:24:54 C 13 57 47.990 +14 52 34.86 W B38
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)