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
2022-10-27 18:00:27 C 07 32 01.301 +02 19 53.33 q Q21
2022-10-27 18:08:55 C 07 32 02.429 +02 20 11.18 q Q21
2022-10-27 18:17:24 C 07 32 03.571 +02 20 29.22 q Q21
2022-10-27 18:53:58 C 07 32 09.06 +02 21 49.2 V P87
2022-10-27 19:07:02 S 07 32 10.587 +02 22 16.53 X 275
2022-10-27 19:33:41 C 07 32 14.30 +02 23 12.1 V P87
2022-10-27 19:44:43 C 07 32 15.75 +02 23 35.9 V P87
2022-10-27 23:48:21 C 07 32 55.20 +02 31 50.5 V L54
2022-10-28 00:09:42 C 07 32 58.20 +02 32 34.9 V L54
2022-10-28 00:33:39 C 07 33 01.52 +02 33 25.2 V L54
2022-10-28 00:55:51 C 07 33 04.55 +02 34 11.3 V L54
2022-10-28 01:01:03 C 07 33 05.46 +02 34 17.6 Y 557
2022-10-28 01:21:30 C 07 33 08.05 +02 35 04.9 V L54
2022-10-28 01:49:41 C 07 33 11.85 +02 36 03.6 V L54
2022-10-28 02:04:31 C 07 33 14.18 +02 36 29.9 Y 557
2022-10-28 03:11:06 C 07 33 23.15 +02 38 48.3 Y 557
2022-10-28 04:15:25 C 07 33 34.322 +02 41 27.10 V G40
2022-10-28 04:16:08 C 07 33 31.82 +02 41 03.1 Y 557
2022-10-28 04:34:01 C 07 33 36.715 +02 42 05.58 V G40
2022-10-28 04:54:01 C 07 33 39.281 +02 42 47.09 V G40
2022-10-28 05:13:43 C 07 33 41.808 +02 43 27.84 V G40
2022-10-28 05:32:46 C 07 33 44.227 +02 44 07.33 V G40
2022-10-28 10:56:38 C 07 34 33.114 +02 55 07.86 V G96
2022-10-28 11:04:50 C 07 34 34.165 +02 55 24.60 V G96
2022-10-28 11:13:02 C 07 34 35.209 +02 55 41.45 V G96
2022-10-28 11:13:10 C 07 34 35.10 +02 55 43.0 U V16
2022-10-28 11:17:47 C 07 34 35.66 +02 55 52.1 U V16
2022-10-28 11:21:14 C 07 34 36.235 +02 55 58.62 V G96
2022-10-28 11:22:24 C 07 34 36.24 +02 56 01.4 U V16
2022-10-28 11:27:01 C 07 34 36.84 +02 56 10.9 U V16
2022-10-28 11:31:37 C 07 34 37.46 +02 56 20.1 U V16
2022-10-28 11:36:13 C 07 34 38.02 +02 56 29.5 U V16
2022-10-28 11:40:50 C 07 34 38.61 +02 56 39.5 U V16
2022-10-29 11:09:14 C 07 38 00.79 +03 43 48.4 U V16
2022-10-29 11:17:34 C 07 38 01.80 +03 44 04.9 U V16
2022-10-29 11:25:56 C 07 38 02.81 +03 44 21.8 U V16
2022-10-29 11:34:16 C 07 38 03.80 +03 44 38.0 U V16
2022-10-29 11:42:37 C 07 38 04.79 +03 44 54.5 U V16
2022-10-29 11:50:57 C 07 38 05.79 +03 45 11.1 U V16
2022-10-29 11:59:19 C 07 38 06.78 +03 45 27.5 U V16
2022-10-29 12:07:38 C 07 38 07.79 +03 45 44.0 U V16
2022-10-30 01:36:18 C 07 40 01.30 +04 11 44.6 d B66
2022-10-30 02:08:18 C 07 40 05.20 +04 12 46.8 d B66
2022-10-30 02:20:42 C 07 40 06.17 +04 13 05.1 Y 557
2022-10-30 02:47:56 C 07 40 09.98 +04 14 03.5 d B66
2022-10-30 03:21:56 C 07 40 14.05 +04 15 09.2 d B66
2022-10-30 03:26:15 C 07 40 14.06 +04 15 11.5 Y 557
2022-10-30 04:27:27 C 07 40 21.76 +04 17 15.3 d B66
2022-10-30 04:29:45 C 07 40 21.64 +04 17 13.6 Y 557
2022-10-30 09:08:53 C 07 41 02.60 +04 26 26.1 q H06
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)