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
2022-11-02 02:56:04 B 07 49 11.89 +06 25 36.3 q M18
2022-11-02 11:04:31 C 07 50 08.33 +06 39 56.2 U V16
2022-11-02 11:12:45 C 07 50 09.09 +06 40 10.5 U V16
2022-11-02 11:20:59 C 07 50 09.88 +06 40 24.6 U V16
2022-11-02 11:29:11 C 07 50 10.66 +06 40 38.7 U V16
2022-11-02 11:37:25 C 07 50 11.47 +06 40 52.7 U V16
2022-11-02 11:45:38 C 07 50 12.23 +06 41 07.2 U V16
2022-11-02 11:53:52 C 07 50 13.02 +06 41 20.3 U V16
2022-11-02 12:02:07 C 07 50 13.85 +06 41 35.4 U V16
2022-11-02 23:55:05 C 07 51 36.558 +07 01 42.26 W M01
2022-11-02 23:57:35 C 07 51 36.800 +07 01 46.55 W M01
2022-11-03 00:00:05 C 07 51 37.042 +07 01 50.85 W M01
2022-11-03 00:02:05 C 07 51 37.236 +07 01 54.17 W M01
2022-11-03 00:04:15 C 07 51 37.352 +07 01 56.28 W M01
2022-11-03 00:04:35 C 07 51 37.476 +07 01 58.49 W M01
2022-11-03 00:07:05 C 07 51 37.715 +07 02 02.80 W M01
2022-11-03 00:08:25 C 07 51 37.842 +07 02 04.96 W M01
2022-11-03 00:10:55 C 07 51 38.081 +07 02 09.23 W M01
2022-11-03 00:13:25 C 07 51 38.321 +07 02 13.50 W M01
2022-11-03 00:15:05 C 07 51 38.478 +07 02 16.28 W M01
2022-11-03 00:17:35 C 07 51 38.718 +07 02 20.56 W M01
2022-11-03 00:20:05 C 07 51 38.958 +07 02 24.84 W M01
2022-11-03 00:20:35 C 07 51 38.997 +07 02 25.52 W M01
2022-11-03 00:23:05 C 07 51 39.241 +07 02 29.84 W M01
2022-11-03 00:25:35 C 07 51 39.484 +07 02 34.15 W M01
2022-11-03 00:28:25 C 07 51 39.748 +07 02 38.96 W M01
2022-11-03 00:30:55 C 07 51 39.983 +07 02 43.22 W M01
2022-11-03 00:33:25 C 07 51 40.218 +07 02 47.48 W M01
2022-11-03 00:35:05 C 07 51 40.378 +07 02 50.25 W M01
2022-11-03 00:37:35 C 07 51 40.617 +07 02 54.50 W M01
2022-11-03 00:40:05 C 07 51 40.855 +07 02 58.75 W M01
2022-11-03 00:40:36 C 07 51 40.894 +07 02 59.53 W M01
2022-11-03 00:43:06 C 07 51 41.135 +07 03 03.86 W M01
2022-11-03 00:45:36 C 07 51 41.376 +07 03 08.19 W M01
2022-11-03 00:48:46 C 07 51 41.665 +07 03 13.46 W M01
2022-11-03 00:51:16 C 07 51 41.899 +07 03 17.68 W M01
2022-11-03 00:53:46 C 07 51 42.133 +07 03 21.90 W M01
2022-11-03 00:55:06 C 07 51 42.252 +07 03 24.14 W M01
2022-11-03 00:57:36 C 07 51 42.448 +07 03 27.10 W M01
2022-11-03 00:57:36 C 07 51 42.490 +07 03 28.36 W M01
2022-11-03 01:00:06 C 07 51 42.728 +07 03 32.58 W M01
2022-11-03 01:01:46 C 07 51 42.877 +07 03 35.48 W M01
2022-11-03 01:04:16 C 07 51 43.109 +07 03 39.70 W M01
2022-11-03 01:06:46 C 07 51 43.342 +07 03 43.93 W M01
2022-11-03 17:37:39 C 07 53 30.871 +07 32 20.26 Z Q62
2022-11-03 18:02:19 C 07 53 33.038 +07 33 00.83 Z Q62
2022-11-04 04:00:46 C 07 54 37.421 +07 47 58.81 V G40
2022-11-04 04:20:14 C 07 54 39.122 +07 48 30.64 V G40
2022-11-04 04:45:02 C 07 54 41.263 +07 49 10.92 V G40
2022-11-04 08:24:29 C 07 55 03.979 +07 56 15.76 V W68
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)