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
2025-05-04 17:10:38 C 05 56 56.717 -24 42 45.04 V M22
2025-05-04 17:19:48 C 05 56 58.620 -24 42 51.26 V M22
2025-05-05 23:54:29 C 06 03 21.564 -25 04 54.91 V W68
2025-05-06 00:05:15 C 06 03 23.806 -25 05 02.29 V W68
2025-05-06 00:19:59 C 06 03 26.863 -25 05 12.41 V W68
2025-05-06 23:11:12 C 06 08 16.241 -25 20 45.71 V W68
2025-05-06 23:17:16 C 06 08 17.472 -25 20 49.20 V W68
2025-05-06 23:25:16 C 06 08 19.142 -25 20 54.49 V W68
2025-05-06 23:40:16 C 06 08 22.277 -25 21 04.07 V W68
2025-05-08 17:11:56 C 06 17 14.244 -25 47 06.83 V M22
2025-05-08 17:16:34 C 06 17 15.240 -25 47 09.64 V M22
2025-05-08 17:30:37 C 06 17 18.235 -25 47 17.20 V M22
2025-05-08 17:47:39 C 06 17 21.842 -25 47 27.42 V M22
2025-05-10 00:10:25 C 06 23 56.234 -26 04 42.31 V W68
2025-05-10 00:15:43 C 06 23 57.365 -26 04 44.83 V W68
2025-05-10 00:27:07 C 06 23 59.837 -26 04 50.34 V W68
2025-05-10 00:43:57 C 06 24 03.487 -26 04 59.16 V W68
2025-05-10 23:08:40 C 06 28 57.698 -26 16 44.69 V W68
2025-05-10 23:14:44 C 06 28 59.021 -26 16 47.71 V W68
2025-05-10 23:22:45 C 06 29 00.739 -26 16 51.42 V W68
2025-05-10 23:37:45 C 06 29 03.962 -26 16 59.05 V W68
2025-05-12 18:17:53 C 06 38 30.485 -26 36 50.22 V M22
2025-05-12 18:25:02 C 06 38 32.083 -26 36 52.99 V M22
2025-05-12 18:51:40 C 06 38 37.946 -26 37 03.54 V M22
2025-05-12 18:57:32 C 06 38 39.245 -26 37 06.28 V M22
2025-05-15 17:06:23 C 06 54 30.694 -27 02 46.68 V M22
2025-05-15 17:10:59 C 06 54 31.733 -27 02 48.01 V M22
2025-05-15 17:19:57 C 06 54 33.739 -27 02 50.57 V M22
2025-05-16 17:31:05 C 07 00 07.152 -27 09 35.10 V M22
2025-05-16 17:35:43 C 07 00 08.210 -27 09 36.07 V M22
2025-05-16 17:59:25 C 07 00 13.608 -27 09 42.01 V M22
2025-05-16 18:10:07 C 07 00 16.078 -27 09 43.56 V M22
2025-05-19 17:12:08 C 07 16 51.442 -27 23 08.34 V M22
2025-05-19 17:16:59 C 07 16 52.541 -27 23 08.81 V M22
2025-05-19 17:24:56 C 07 16 54.389 -27 23 09.53 V M22
2025-05-21 23:58:35 C 07 29 53.491 -27 26 49.09 V W68
2025-05-22 00:31:48 C 07 30 01.351 -27 26 48.55 V W68
2025-05-22 00:40:14 C 07 30 03.398 -27 26 48.19 V W68
2025-05-22 22:59:38 C 07 35 25.999 -27 26 38.40 V W68
2025-05-22 23:05:02 C 07 35 27.286 -27 26 37.79 V W68
2025-05-22 23:13:55 C 07 35 29.366 -27 26 37.50 V W68
2025-05-22 23:31:27 C 07 35 33.521 -27 26 36.38 V W68
2025-05-24 17:18:25 C 07 45 41.532 -27 23 30.23 V M22
2025-05-24 17:22:59 C 07 45 42.614 -27 23 29.72 V M22
2025-05-24 17:46:48 C 07 45 48.319 -27 23 26.20 V M22
2025-05-25 23:25:23 C 07 53 03.154 -27 19 08.08 V W68
2025-05-25 23:33:17 C 07 53 05.030 -27 19 06.67 V W68
2025-05-25 23:54:44 C 07 53 10.188 -27 19 02.68 V W68
2025-05-26 00:09:31 C 07 53 13.771 -27 18 58.97 V W68
2025-05-26 00:24:41 C 07 53 17.434 -27 18 55.55 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)