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
2022-12-23 09:07:09 C 07 58 58.681 +27 40 08.18 V G96
2022-12-23 09:14:39 C 07 58 58.080 +27 40 12.72 V G96
2022-12-23 11:27:00 S 07 58 46.695 +27 41 24.76 X 275
2022-12-23 22:13:07 C 07 58 05.38 +27 47 47.3 V Z55
2022-12-23 22:15:14 C 07 58 05.21 +27 47 48.7 V Z55
2022-12-23 22:17:21 C 07 58 05.05 +27 47 50.1 V Z55
2022-12-23 22:19:29 C 07 58 04.89 +27 47 51.4 V Z55
2022-12-23 22:21:36 C 07 58 04.72 +27 47 52.9 V Z55
2022-12-24 07:04:03 C 07 57 27.202 +27 53 06.86 V 703
2022-12-24 07:11:39 C 07 57 26.561 +27 53 11.54 V 703
2022-12-24 07:19:15 C 07 57 25.952 +27 53 16.22 V 703
2022-12-24 07:26:51 C 07 57 25.340 +27 53 20.83 V 703
2022-12-24 17:24:32 C 07 56 41.57 +27 59 06.2 V P87
2022-12-24 17:43:59 C 07 56 39.99 +27 59 17.1 V P87
2022-12-24 20:43:31 C 07 56 26.05 +28 00 56.8 V D29
2022-12-24 21:03:53 C 07 56 24.45 +28 01 07.4 V D29
2022-12-24 21:24:14 C 07 56 22.86 +28 01 18.0 V D29
2022-12-25 12:58:29 C 07 55 19.80 +28 10 01.5 o 372
2022-12-25 13:04:08 C 07 55 19.36 +28 10 05.0 o 372
2022-12-25 13:07:39 C 07 55 19.08 +28 10 07.1 o 372
2022-12-26 12:01:37 C 07 53 36.52 +28 22 34.4 U V16
2022-12-26 12:09:55 C 07 53 35.84 +28 22 38.4 U V16
2022-12-26 12:18:12 C 07 53 35.21 +28 22 42.3 U V16
2022-12-26 12:26:30 C 07 53 34.57 +28 22 46.3 U V16
2022-12-26 12:34:49 C 07 53 33.91 +28 22 50.2 U V16
2022-12-26 12:43:06 C 07 53 33.29 +28 22 54.2 U V16
2022-12-26 22:31:04 C 07 52 53.760 +28 27 56.59 X B72
2022-12-26 22:33:14 C 07 52 53.599 +28 27 57.71 X B72
2022-12-26 22:35:24 C 07 52 53.441 +28 27 59.15 X B72
2022-12-26 22:40:13 C 07 52 53.09 +28 28 01.1 V C23
2022-12-26 22:43:27 C 07 52 52.85 +28 28 02.7 V C23
2022-12-27 00:14:29 C 07 52 45.62 +28 28 52.0 V C23
2022-12-27 00:18:47 C 07 52 45.28 +28 28 54.3 V C23
2022-12-27 07:47:42 C 07 52 12.968 +28 32 56.40 V 703
2022-12-27 07:55:18 C 07 52 12.342 +28 33 00.43 V 703
2022-12-27 08:02:57 C 07 52 11.723 +28 33 04.50 V 703
2022-12-27 08:10:33 C 07 52 11.064 +28 33 08.60 V 703
2022-12-27 20:00:30 C 07 51 20.736 +28 38 48.59 X B72
2022-12-27 20:01:35 C 07 51 20.669 +28 38 49.24 X B72
2022-12-27 20:02:41 C 07 51 20.587 +28 38 49.81 X B72
2022-12-27 20:03:46 C 07 51 20.503 +28 38 50.32 X B72
2022-12-27 20:04:50 C 07 51 20.419 +28 38 50.75 X B72
2022-12-27 20:05:57 C 07 51 20.338 +28 38 51.40 X B72
2022-12-27 21:56:12 C 07 51 11.73 +28 39 53.0 V M34
2022-12-27 22:15:59 C 07 51 10.13 +28 40 04.4 q G23
2022-12-27 22:21:31 C 07 51 10.11 +28 40 07.4 X C95
2022-12-27 22:23:47 C 07 51 09.97 +28 40 08.4 X K19
2022-12-27 22:26:33 C 07 51 09.35 +28 40 09.0 V M34
2022-12-27 22:27:38 C 07 51 09.63 +28 40 10.7 X C95
2022-12-27 22:29:00 C 07 51 09.54 +28 40 11.4 X K19
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)