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
2022-07-22 23:16:43 C 22 35 51.775 -19 37 04.44 X L10
2022-07-22 23:17:13 C 22 35 51.817 -19 37 04.54 X L10
2022-07-22 23:17:43 C 22 35 51.849 -19 37 04.73 X L10
2022-07-22 23:18:13 C 22 35 51.872 -19 37 04.81 X L10
2022-07-22 23:18:43 C 22 35 51.902 -19 37 04.91 X L10
2022-07-22 23:19:13 C 22 35 51.924 -19 37 05.07 X L10
2022-07-23 00:19:05 C 22 35 55.368 -19 37 23.70 X L10
2022-07-23 00:20:07 C 22 35 55.429 -19 37 23.92 X L10
2022-07-23 00:21:10 C 22 35 55.486 -19 37 24.27 X L10
2022-07-23 00:22:12 C 22 35 55.551 -19 37 24.66 X L10
2022-07-23 00:23:15 C 22 35 55.605 -19 37 24.81 X L10
2022-07-23 00:24:17 C 22 35 55.675 -19 37 25.28 X L10
2022-07-23 00:25:20 C 22 35 55.723 -19 37 25.61 X L10
2022-07-23 00:26:22 C 22 35 55.778 -19 37 25.90 X L10
2022-07-23 00:27:25 C 22 35 55.843 -19 37 26.17 X L10
2022-07-23 00:28:27 C 22 35 55.916 -19 37 26.37 X L10
2022-07-23 00:29:30 C 22 35 55.965 -19 37 26.96 X L10
2022-07-23 00:30:32 C 22 35 56.031 -19 37 27.30 X L10
2022-07-23 00:31:35 C 22 35 56.095 -19 37 27.52 X L10
2022-07-23 00:32:37 C 22 35 56.152 -19 37 27.76 X L10
2022-07-23 00:33:40 C 22 35 56.202 -19 37 28.15 X L10
2022-07-23 00:34:42 C 22 35 56.268 -19 37 28.56 X L10
2022-07-23 00:35:45 C 22 35 56.328 -19 37 28.80 X L10
2022-07-23 00:36:47 C 22 35 56.389 -19 37 29.02 X L10
2022-07-23 00:37:50 C 22 35 56.442 -19 37 29.44 X L10
2022-07-23 00:38:52 C 22 35 56.510 -19 37 29.73 X L10
2022-07-23 22:56:27 C 22 37 21.318 -19 44 19.89 X L10
2022-07-23 22:57:29 C 22 37 21.378 -19 44 20.41 X L10
2022-07-23 22:58:32 C 22 37 21.437 -19 44 20.67 X L10
2022-07-23 22:59:34 C 22 37 21.497 -19 44 20.88 X L10
2022-07-23 23:00:37 C 22 37 21.559 -19 44 21.28 X L10
2022-07-23 23:01:39 C 22 37 21.614 -19 44 21.56 X L10
2022-07-23 23:02:42 C 22 37 21.678 -19 44 21.88 X L10
2022-07-23 23:03:44 C 22 37 21.737 -19 44 22.36 X L10
2022-07-23 23:04:47 C 22 37 21.801 -19 44 22.70 X L10
2022-07-23 23:05:49 C 22 37 21.852 -19 44 22.96 X L10
2022-07-23 23:06:52 C 22 37 21.918 -19 44 23.45 X L10
2022-07-23 23:07:54 C 22 37 21.979 -19 44 23.65 X L10
2022-07-23 23:08:57 C 22 37 22.041 -19 44 24.04 X L10
2022-07-23 23:09:59 C 22 37 22.106 -19 44 24.36 X L10
2022-07-23 23:11:02 C 22 37 22.167 -19 44 24.72 X L10
2022-07-23 23:12:04 C 22 37 22.220 -19 44 24.98 X L10
2022-07-23 23:13:07 C 22 37 22.280 -19 44 25.37 X L10
2022-07-23 23:14:09 C 22 37 22.346 -19 44 25.75 X L10
2022-07-23 23:15:12 C 22 37 22.401 -19 44 25.99 X L10
2022-07-23 23:16:14 C 22 37 22.458 -19 44 26.45 X L10
2022-07-24 00:55:18 C 22 37 28.162 -19 44 58.30 X L10
2022-07-24 00:56:20 C 22 37 28.223 -19 44 58.65 X L10
2022-07-24 00:57:23 C 22 37 28.282 -19 44 58.88 X L10
2022-07-24 00:58:25 C 22 37 28.341 -19 44 59.12 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)