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
2022-07-07 10:33:37 C 22 12 39.335 -18 24 24.68 X G37
2022-07-07 10:35:21 C 22 12 39.436 -18 24 24.87 X G37
2022-07-07 10:37:04 C 22 12 39.537 -18 24 25.04 X G37
2022-07-07 10:38:48 C 22 12 39.637 -18 24 25.23 X G37
2022-07-07 10:40:31 C 22 12 39.738 -18 24 25.40 X G37
2022-07-07 10:42:15 C 22 12 39.836 -18 24 25.59 X G37
2022-07-07 10:43:58 C 22 12 39.935 -18 24 25.75 X G37
2022-07-07 10:45:42 C 22 12 40.037 -18 24 25.93 X G37
2022-07-07 10:47:48 C 22 12 40.157 -18 24 26.14 X G37
2022-07-07 10:49:31 C 22 12 40.257 -18 24 26.34 X G37
2022-07-07 10:51:15 C 22 12 40.358 -18 24 26.50 X G37
2022-07-07 10:52:58 C 22 12 40.457 -18 24 26.68 X G37
2022-07-07 10:54:42 C 22 12 40.558 -18 24 26.86 X G37
2022-07-07 10:56:25 C 22 12 40.658 -18 24 27.03 X G37
2022-07-07 10:58:09 C 22 12 40.756 -18 24 27.19 X G37
2022-07-07 11:06:54 C 22 12 41.266 -18 24 28.10 X G37
2022-07-07 11:08:38 C 22 12 41.365 -18 24 28.28 X G37
2022-07-07 11:10:21 C 22 12 41.466 -18 24 28.45 X G37
2022-07-07 11:12:05 C 22 12 41.565 -18 24 28.63 X G37
2022-07-07 11:13:50 C 22 12 41.670 -18 24 28.80 X G37
2022-07-07 11:15:34 C 22 12 41.766 -18 24 28.96 X G37
2022-07-07 11:17:17 C 22 12 41.866 -18 24 29.15 X G37
2022-07-07 11:19:07 C 22 12 41.973 -18 24 29.33 X G37
2022-07-07 11:20:55 C 22 12 42.076 -18 24 29.51 X G37
2022-07-07 11:22:44 C 22 12 42.181 -18 24 29.69 X G37
2022-07-07 11:24:31 C 22 12 42.284 -18 24 29.85 X G37
2022-07-09 07:51:20 C 22 15 28.301 -18 29 15.40 V W68
2022-07-09 07:55:48 C 22 15 28.584 -18 29 15.61 V W68
2022-07-09 08:04:30 C 22 15 29.057 -18 29 16.58 V W68
2022-07-09 08:50:46 C 22 15 31.718 -18 29 22.02 V W68
2022-07-20 10:30:38 C 22 32 02.681 -19 20 01.28 U I41
2022-07-20 10:37:33 C 22 32 03.070 -19 20 03.01 U I41
2022-07-22 07:40:31 C 22 34 52.255 -19 32 05.68 V W68
2022-07-22 07:50:30 C 22 34 52.826 -19 32 08.66 V W68
2022-07-22 08:02:13 C 22 34 53.479 -19 32 12.01 V W68
2022-07-22 08:06:31 C 22 34 53.726 -19 32 13.24 V W68
2022-07-22 23:09:43 C 22 35 51.368 -19 37 02.32 X L10
2022-07-22 23:10:13 C 22 35 51.398 -19 37 02.42 X L10
2022-07-22 23:10:43 C 22 35 51.431 -19 37 02.63 X L10
2022-07-22 23:11:13 C 22 35 51.459 -19 37 02.84 X L10
2022-07-22 23:11:43 C 22 35 51.488 -19 37 03.06 X L10
2022-07-22 23:12:13 C 22 35 51.519 -19 37 03.18 X L10
2022-07-22 23:12:43 C 22 35 51.553 -19 37 03.20 X L10
2022-07-22 23:13:13 C 22 35 51.579 -19 37 03.43 X L10
2022-07-22 23:13:43 C 22 35 51.604 -19 37 03.59 X L10
2022-07-22 23:14:13 C 22 35 51.634 -19 37 03.77 X L10
2022-07-22 23:14:43 C 22 35 51.659 -19 37 03.96 X L10
2022-07-22 23:15:13 C 22 35 51.688 -19 37 04.00 X L10
2022-07-22 23:15:43 C 22 35 51.721 -19 37 04.19 X L10
2022-07-22 23:16:13 C 22 35 51.744 -19 37 04.25 X L10
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)