65803 Didymos (1996 GT)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3832284188 ± 6.51e-10
Semi-major axis (a)1.6425644037 AU ± 4.60e-11
Inclination (i)3.41407431° ± 1.19e-07
Long. of Asc. Node (Ω)72.98445790° ± 2.27e-06
Arg. of Perihelion (ω)319.58991656° ± 2.29e-06
Mean Anomaly (M)167.22107700° ± 1.96e-07
Mean Motion (n)0.4681970422°/day ± 1.97e-11
Perihelion dist (q)1.01308704 AU ± 1.07e-09
Aphelion dist (Q)2.27204176 AU ± 1.07e-09
Orbital Period2.10515273 yr ± 8.85e-11
Physical Parameters
H (abs. magnitude)18.11
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.192″
Uncertainty0
Orbit TypeApollo
MOID0.038973 AU
Observations Used5293
Radar Obs Used9
Oppositions14
Arc Total1996-2025
First Observation Used1996-04-11
Last Observation Used2025-02-27
Observations (6092)
Date Type RA Dec Mag Band Observatory
2022-07-06 09:30:15 C 22 11 05.962 -18 21 56.81 X G37
2022-07-06 09:32:01 C 22 11 06.060 -18 21 56.96 X G37
2022-07-06 09:33:45 C 22 11 06.161 -18 21 57.13 X G37
2022-07-06 09:35:28 C 22 11 06.261 -18 21 57.32 X G37
2022-07-06 09:37:12 C 22 11 06.361 -18 21 57.49 X G37
2022-07-06 09:38:55 C 22 11 06.465 -18 21 57.64 X G37
2022-07-06 09:40:39 C 22 11 06.563 -18 21 57.82 X G37
2022-07-06 09:42:22 C 22 11 06.663 -18 21 57.98 X G37
2022-07-06 09:44:06 C 22 11 06.763 -18 21 58.15 X G37
2022-07-06 09:45:49 C 22 11 06.864 -18 21 58.31 X G37
2022-07-06 09:47:33 C 22 11 06.965 -18 21 58.47 X G37
2022-07-06 09:49:16 C 22 11 07.065 -18 21 58.66 X G37
2022-07-06 09:51:00 C 22 11 07.167 -18 21 58.84 X G37
2022-07-06 09:52:43 C 22 11 07.267 -18 21 58.99 X G37
2022-07-06 09:54:27 C 22 11 07.367 -18 21 59.15 X G37
2022-07-06 09:56:10 C 22 11 07.467 -18 21 59.32 X G37
2022-07-06 09:57:54 C 22 11 07.569 -18 21 59.49 X G37
2022-07-06 09:59:37 C 22 11 07.669 -18 21 59.66 X G37
2022-07-06 10:01:21 C 22 11 07.768 -18 21 59.82 X G37
2022-07-06 10:03:05 C 22 11 07.867 -18 22 00.00 X G37
2022-07-06 10:04:48 C 22 11 07.968 -18 22 00.14 X G37
2022-07-06 10:06:38 C 22 11 08.077 -18 22 00.33 X G37
2022-07-06 10:08:22 C 22 11 08.175 -18 22 00.49 X G37
2022-07-06 10:10:06 C 22 11 08.276 -18 22 00.67 X G37
2022-07-06 10:11:49 C 22 11 08.381 -18 22 00.81 X G37
2022-07-06 10:13:33 C 22 11 08.477 -18 22 00.99 X G37
2022-07-06 10:15:16 C 22 11 08.583 -18 22 01.18 X G37
2022-07-06 10:17:00 C 22 11 08.680 -18 22 01.33 X G37
2022-07-06 10:20:27 C 22 11 08.879 -18 22 01.64 X G37
2022-07-06 10:22:10 C 22 11 08.980 -18 22 01.80 X G37
2022-07-06 10:23:54 C 22 11 09.082 -18 22 01.97 X G37
2022-07-06 10:25:37 C 22 11 09.181 -18 22 02.14 X G37
2022-07-06 10:27:21 C 22 11 09.282 -18 22 02.32 X G37
2022-07-06 10:29:04 C 22 11 09.380 -18 22 02.47 X G37
2022-07-06 10:30:48 C 22 11 09.481 -18 22 02.63 X G37
2022-07-06 10:32:31 C 22 11 09.582 -18 22 02.78 X G37
2022-07-06 10:35:58 C 22 11 09.781 -18 22 03.10 X G37
2022-07-06 10:37:42 C 22 11 09.879 -18 22 03.26 X G37
2022-07-06 10:39:26 C 22 11 09.984 -18 22 03.45 X G37
2022-07-06 10:41:11 C 22 11 10.085 -18 22 03.60 X G37
2022-07-06 10:42:55 C 22 11 10.186 -18 22 03.76 X G37
2022-07-06 10:44:39 C 22 11 10.287 -18 22 03.93 X G37
2022-07-06 10:46:22 C 22 11 10.384 -18 22 04.09 X G37
2022-07-06 10:48:06 C 22 11 10.485 -18 22 04.23 X G37
2022-07-06 10:49:49 C 22 11 10.586 -18 22 04.40 X G37
2022-07-06 10:51:33 C 22 11 10.688 -18 22 04.58 X G37
2022-07-06 10:53:16 C 22 11 10.787 -18 22 04.73 X G37
2022-07-06 10:55:00 C 22 11 10.889 -18 22 04.89 X G37
2022-07-06 10:56:43 C 22 11 10.988 -18 22 05.04 X G37
2022-07-06 10:58:29 C 22 11 11.092 -18 22 05.21 X G37
Radar Observations (9)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2003-11-14 09:00:00 48158516.71 0.2 us 8560 -14 -14
2003-11-15 05:30:00 48558999.72 0.2 us 8560 -14 -14
2003-11-23 03:26:00 60567637.54 0.1 us 2380 -1 -1
2003-11-24 03:17:00 62957533.66 0.1 us 2380 -1 -1
2003-11-26 04:19:00 68342975.29 0.1 us 2380 -1 -1
2022-09-28 11:00:00 73916934.998 1.5 us 8560 -14 -14
2022-09-30 11:20:00 72316200.402 1.5 us 8560 -14 -14
2022-10-07 11:20:00 71795431.959 1 us 8560 -14 -14
2022-10-08 12:50:00 72372078.703 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)