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
2023-08-07 17:31:20 C 13 16 52.104 -06 58 50.52 V M22
2023-08-07 17:53:11 C 13 16 54.948 -06 58 38.14 V M22
2023-08-12 23:16:13 C 13 33 09.799 -05 46 10.34 V W68
2023-08-12 23:20:46 C 13 33 10.358 -05 46 07.72 V W68
2023-08-12 23:31:57 C 13 33 11.717 -05 46 00.95 V W68
2023-08-12 23:49:04 C 13 33 13.867 -05 45 50.80 V W68
2023-08-14 23:17:15 C 13 39 08.095 -05 17 44.92 V W68
2023-08-14 23:21:49 C 13 39 08.647 -05 17 42.43 V W68
2023-08-14 23:32:58 C 13 39 10.010 -05 17 36.02 V W68
2023-08-14 23:50:02 C 13 39 12.050 -05 17 24.94 V W68
2025-04-14 18:07:55 C 04 24 01.872 -16 09 55.94 V M22
2025-04-14 18:14:04 C 04 24 03.012 -16 10 03.83 V M22
2025-04-14 18:22:51 C 04 24 04.615 -16 10 16.10 V M22
2025-04-14 18:37:03 C 04 24 07.248 -16 10 35.90 V M22
2025-04-17 00:09:51 C 04 34 05.765 -17 21 39.78 V W68
2025-04-17 00:14:37 C 04 34 06.658 -17 21 45.94 V W68
2025-04-17 00:25:23 C 04 34 08.676 -17 21 59.76 V W68
2025-04-17 00:40:57 C 04 34 11.542 -17 22 19.78 V W68
2025-04-17 17:32:34 C 04 37 20.566 -17 44 05.10 V M22
2025-04-17 17:37:16 C 04 37 21.413 -17 44 10.93 V M22
2025-04-17 17:45:16 C 04 37 22.927 -17 44 21.34 V M22
2025-04-17 18:02:27 C 04 37 26.088 -17 44 42.94 V M22
2025-04-18 18:11:10 C 04 41 57.137 -18 15 18.58 V M22
2025-04-18 18:15:47 C 04 41 58.001 -18 15 24.12 V M22
2025-04-18 18:23:39 C 04 41 59.467 -18 15 33.84 V M22
2025-04-18 18:40:21 C 04 42 02.582 -18 15 54.79 V M22
2025-04-21 00:06:55 C 04 52 05.741 -19 21 16.45 V W68
2025-04-21 00:11:41 C 04 52 06.614 -19 21 21.96 V W68
2025-04-21 00:19:32 C 04 52 08.062 -19 21 31.21 V W68
2025-04-21 00:34:55 C 04 52 10.932 -19 21 48.78 V W68
2025-04-25 00:02:56 C 05 10 23.354 -21 09 54.14 V W68
2025-04-25 00:07:02 C 05 10 24.146 -21 09 58.75 V W68
2025-04-25 00:14:29 C 05 10 25.572 -21 10 06.56 V W68
2025-04-25 00:31:58 C 05 10 28.927 -21 10 24.78 V W68
2025-04-25 18:01:21 C 05 13 51.770 -21 28 57.00 V M22
2025-04-25 18:05:55 C 05 13 52.646 -21 29 01.90 V M22
2025-04-25 18:15:26 C 05 13 54.473 -21 29 11.69 V M22
2025-04-25 18:34:16 C 05 13 58.106 -21 29 30.77 V M22
2025-04-29 00:10:12 C 05 29 10.049 -22 46 49.40 V W68
2025-04-29 00:21:44 C 05 29 12.302 -22 47 00.20 V W68
2025-04-29 00:37:14 C 05 29 15.355 -22 47 14.53 V W68
2025-05-02 23:33:54 C 05 48 22.159 -24 10 25.90 V W68
2025-05-02 23:36:35 C 05 48 22.687 -24 10 28.42 V W68
2025-05-02 23:44:33 C 05 48 24.314 -24 10 34.36 V W68
2025-05-02 23:47:14 C 05 48 24.847 -24 10 36.41 V W68
2025-05-03 00:03:33 C 05 48 28.133 -24 10 49.26 V W68
2025-05-03 17:44:03 C 05 52 05.851 -24 24 50.80 V M22
2025-05-03 17:52:01 C 05 52 07.445 -24 24 57.06 V M22
2025-05-03 18:12:41 C 05 52 11.674 -24 25 12.18 V M22
2025-05-04 17:04:43 C 05 56 55.538 -24 42 40.50 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)