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
2022-09-01 22:49:49 C 00 05 40.819 -30 21 59.08 V M22
2022-09-01 22:52:25 C 00 05 41.210 -30 22 01.74 V M22
2022-09-01 22:56:38 C 00 05 41.849 -30 22 05.99 V M22
2022-09-01 23:04:26 C 00 05 43.030 -30 22 13.87 V M22
2022-09-02 20:08:18 C 00 09 20.06 -30 43 50.8 Y 190
2022-09-02 20:09:04 C 00 09 20.17 -30 43 51.4 Y 190
2022-09-02 20:09:51 C 00 09 20.32 -30 43 52.3 Y 190
2022-09-02 20:10:14 C 00 09 20.33 -30 43 52.5 Y 190
2022-09-02 20:10:39 C 00 09 20.44 -30 43 53.8 Y 190
2022-09-02 20:11:25 C 00 09 20.54 -30 43 54.4 Y 190
2022-09-02 20:14:45 C 00 09 21.05 -30 43 57.4 Y 190
2022-09-02 20:15:19 C 00 09 21.12 -30 43 57.4 Y 190
2022-09-02 20:16:26 C 00 09 21.33 -30 43 58.9 Y 190
2022-09-02 20:17:00 C 00 09 21.44 -30 44 00.0 Y 190
2022-09-02 20:17:33 C 00 09 21.51 -30 44 00.1 Y 190
2022-09-02 20:18:06 C 00 09 21.62 -30 44 00.7 Y 190
2022-09-02 20:18:40 C 00 09 21.69 -30 44 01.0 Y 190
2022-09-02 20:28:03 C 00 09 23.18 -30 44 10.8 Y 190
2022-09-02 20:28:37 C 00 09 23.24 -30 44 10.6 Y 190
2022-09-02 20:29:10 C 00 09 23.37 -30 44 11.6 Y 190
2022-09-02 20:29:43 C 00 09 23.42 -30 44 11.7 Y 190
2022-09-02 20:30:16 C 00 09 23.59 -30 44 13.2 Y 190
2022-09-02 20:30:50 C 00 09 23.65 -30 44 13.6 Y 190
2022-09-02 20:32:30 C 00 09 24.00 -30 44 14.9 Y 190
2022-09-02 20:33:15 C 00 09 24.03 -30 44 14.9 Y 190
2022-09-02 20:33:49 C 00 09 24.10 -30 44 16.0 Y 190
2022-09-02 20:34:22 C 00 09 24.19 -30 44 16.5 Y 190
2022-09-02 20:34:55 C 00 09 24.24 -30 44 17.3 Y 190
2022-09-02 20:35:29 C 00 09 24.39 -30 44 18.4 Y 190
2022-09-02 20:36:03 C 00 09 24.47 -30 44 17.8 Y 190
2022-09-02 20:36:36 C 00 09 24.55 -30 44 18.9 Y 190
2022-09-02 20:37:09 C 00 09 24.62 -30 44 19.2 Y 190
2022-09-02 20:37:43 C 00 09 24.73 -30 44 19.6 Y 190
2022-09-02 20:38:16 C 00 09 24.80 -30 44 20.6 Y 190
2022-09-02 20:39:02 C 00 09 24.93 -30 44 21.1 Y 190
2022-09-02 20:39:35 C 00 09 24.97 -30 44 21.1 Y 190
2022-09-02 20:40:08 C 00 09 25.07 -30 44 22.0 Y 190
2022-09-02 20:40:42 C 00 09 25.17 -30 44 23.0 Y 190
2022-09-02 20:41:15 C 00 09 25.28 -30 44 23.1 Y 190
2022-09-02 20:41:48 C 00 09 25.40 -30 44 23.9 Y 190
2022-09-02 20:42:21 C 00 09 25.48 -30 44 24.7 Y 190
2022-09-02 20:42:55 C 00 09 25.56 -30 44 25.5 Y 190
2022-09-02 20:43:28 C 00 09 25.66 -30 44 25.6 Y 190
2022-09-02 20:44:01 C 00 09 25.72 -30 44 26.1 Y 190
2022-09-02 20:58:42 C 00 09 28.05 -30 44 40.4 Y 190
2022-09-02 20:59:45 C 00 09 28.20 -30 44 41.7 Y 190
2022-09-02 21:00:48 C 00 09 28.42 -30 44 42.3 Y 190
2022-09-02 21:01:52 C 00 09 28.55 -30 44 43.2 Y 190
2022-09-02 21:02:55 C 00 09 28.76 -30 44 45.2 Y 190
2022-09-02 21:03:59 C 00 09 28.89 -30 44 45.3 Y 190
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)