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
2022-11-01 00:37:02 C 07 46 04.32 +05 39 11.6 V 585
2022-11-01 00:39:22 C 07 46 04.56 +05 39 15.7 V 585
2022-11-01 00:40:24 C 07 46 04.68 +05 39 17.7 V 585
2022-11-01 00:41:25 C 07 46 04.81 +05 39 19.6 V 585
2022-11-01 00:42:27 C 07 46 04.91 +05 39 21.3 V 585
2022-11-01 00:44:32 C 07 46 05.14 +05 39 25.1 V 585
2022-11-01 00:45:34 C 07 46 05.26 +05 39 27.1 V 585
2022-11-01 00:46:35 C 07 46 05.37 +05 39 28.9 V 585
2022-11-01 00:47:38 C 07 46 05.48 +05 39 30.7 V 585
2022-11-01 00:48:40 C 07 46 05.60 +05 39 32.6 V 585
2022-11-01 00:49:42 C 07 46 05.71 +05 39 34.4 V 585
2022-11-01 00:50:44 C 07 46 05.82 +05 39 36.3 V 585
2022-11-01 00:51:46 C 07 46 05.93 +05 39 37.9 V 585
2022-11-01 00:52:48 C 07 46 06.05 +05 39 40.0 V 585
2022-11-01 00:53:50 C 07 46 06.17 +05 39 41.8 V 585
2022-11-01 00:54:52 C 07 46 06.28 +05 39 43.9 V 585
2022-11-01 00:55:54 C 07 46 06.39 +05 39 45.7 V 585
2022-11-01 00:56:56 C 07 46 06.51 +05 39 47.5 V 585
2022-11-01 00:57:58 C 07 46 06.60 +05 39 49.0 V 585
2022-11-01 00:59:00 C 07 46 06.72 +05 39 51.0 V 585
2022-11-01 01:02:21 C 07 46 07.12 +05 39 57.5 V 585
2022-11-01 01:04:27 C 07 46 07.34 +05 40 00.7 V 585
2022-11-01 01:05:29 C 07 46 07.45 +05 40 03.2 V 585
2022-11-01 01:06:30 C 07 46 07.56 +05 40 05.0 V 585
2022-11-01 01:07:33 C 07 46 07.68 +05 40 06.8 V 585
2022-11-01 01:08:35 C 07 46 07.79 +05 40 08.8 V 585
2022-11-01 01:09:37 C 07 46 07.91 +05 40 10.7 V 585
2022-11-01 01:10:38 C 07 46 08.02 +05 40 12.4 V 585
2022-11-01 01:11:40 C 07 46 08.14 +05 40 14.4 V 585
2022-11-01 01:12:43 C 07 46 08.25 +05 40 16.2 V 585
2022-11-01 01:13:45 C 07 46 08.36 +05 40 18.1 V 585
2022-11-01 08:11:10 C 07 46 59.44 +05 54 25.0 Z X07
2022-11-01 08:19:48 C 07 47 00.33 +05 54 40.5 Z X07
2022-11-01 08:28:02 C 07 47 01.17 +05 54 55.2 Z X07
2022-11-01 11:05:49 C 07 47 20.05 +05 58 14.0 U V16
2022-11-01 11:22:29 C 07 47 21.71 +05 58 43.7 U V16
2022-11-01 11:30:50 C 07 47 22.59 +05 58 58.6 U V16
2022-11-01 11:39:08 C 07 47 23.40 +05 59 13.3 U V16
2022-11-01 11:47:26 C 07 47 24.22 +05 59 28.0 U V16
2022-11-01 11:55:46 C 07 47 25.08 +05 59 42.8 U V16
2022-11-01 12:04:07 C 07 47 25.92 +05 59 57.6 U V16
2022-11-01 13:47:26 C 07 47 40.054 +06 03 13.50 V T05
2022-11-01 13:51:59 C 07 47 40.512 +06 03 21.53 V T05
2022-11-01 14:04:21 C 07 47 41.734 +06 03 43.49 V T05
2022-11-02 00:24:38 C 07 48 55.78 +06 21 17.1 V L54
2022-11-02 00:43:12 C 07 48 57.71 +06 21 49.7 V L54
2022-11-02 00:58:24 C 07 48 59.32 +06 22 16.3 V L54
2022-11-02 01:11:54 C 07 49 00.71 +06 22 39.8 V L54
2022-11-02 01:33:52 C 07 49 02.98 +06 23 18.2 V L54
2022-11-02 02:13:37 B 07 49 07.45 +06 24 21.9 q M18
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)