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
2022-10-15 09:02:56 V 06 28 56.39 -10 55 32.6 V 270
2022-10-15 09:02:56 v 1 276.64246 +33.90559 270
2022-10-15 09:11:25 V 06 28 58.49 -10 55 09.2 V 270
2022-10-15 09:11:25 v 1 276.64246 +33.90559 270
2022-10-15 09:20:41 V 06 29 00.93 -10 54 33.1 V 270
2022-10-15 09:20:41 v 1 276.64246 +33.90559 270
2022-10-16 01:16:01 C 06 33 30.37 -10 03 04.2 V 585
2022-10-16 01:17:04 C 06 33 30.64 -10 03 00.9 V 585
2022-10-16 01:18:06 C 06 33 30.92 -10 02 57.9 V 585
2022-10-16 01:19:08 C 06 33 31.20 -10 02 54.4 V 585
2022-10-16 01:20:10 C 06 33 31.49 -10 02 51.1 V 585
2022-10-16 01:23:16 C 06 33 32.25 -10 02 41.1 V 585
2022-10-16 01:24:18 C 06 33 32.51 -10 02 37.5 V 585
2022-10-16 01:25:20 C 06 33 32.77 -10 02 34.4 V 585
2022-10-16 01:26:23 C 06 33 33.05 -10 02 31.3 V 585
2022-10-16 01:28:26 C 06 33 33.60 -10 02 24.5 V 585
2022-10-16 01:29:28 C 06 33 33.84 -10 02 21.1 V 585
2022-10-16 01:30:31 C 06 33 34.12 -10 02 18.0 V 585
2022-10-16 01:31:33 C 06 33 34.42 -10 02 13.9 V 585
2022-10-16 01:33:37 C 06 33 34.96 -10 02 07.8 V 585
2022-10-16 01:34:39 C 06 33 35.19 -10 02 04.7 V 585
2022-10-16 01:35:41 C 06 33 35.46 -10 02 01.1 V 585
2022-10-16 01:36:43 C 06 33 35.73 -10 01 58.0 V 585
2022-10-16 01:37:45 C 06 33 35.99 -10 01 54.6 V 585
2022-10-16 01:38:47 C 06 33 36.26 -10 01 51.1 V 585
2022-10-16 01:39:49 C 06 33 36.54 -10 01 48.1 V 585
2022-10-16 01:40:51 C 06 33 36.77 -10 01 44.7 V 585
2022-10-16 01:41:53 C 06 33 37.12 -10 01 41.3 V 585
2022-10-16 01:43:57 C 06 33 37.58 -10 01 34.6 V 585
2022-10-16 01:44:59 C 06 33 37.85 -10 01 31.4 V 585
2022-10-16 02:08:22 C 06 33 43.729 -10 00 13.13 V 089
2022-10-16 02:11:14 C 06 33 44.514 -10 00 04.01 V 089
2022-10-16 02:14:06 C 06 33 45.226 -09 59 55.00 V 089
2022-10-16 02:16:58 C 06 33 45.947 -09 59 45.78 V 089
2022-10-16 02:19:50 C 06 33 46.669 -09 59 36.55 V 089
2022-10-16 02:22:42 C 06 33 47.395 -09 59 27.07 V 089
2022-10-16 02:25:34 C 06 33 48.140 -09 59 17.62 V 089
2022-10-16 02:28:26 C 06 33 48.889 -09 59 08.68 V 089
2022-10-16 07:55:25 V 06 35 22.13 -09 41 20.4 V 270
2022-10-16 07:55:25 v 1 276.64247 +33.90559 270
2022-10-16 08:04:57 V 06 35 24.51 -09 40 50.0 V 270
2022-10-16 08:04:57 v 1 276.64247 +33.90559 270
2022-10-16 08:15:00 V 06 35 27.04 -09 40 18.6 V 270
2022-10-16 08:15:00 v 1 276.64247 +33.90559 270
2022-10-16 08:24:08 V 06 35 29.35 -09 39 49.6 V 270
2022-10-16 08:24:08 v 1 276.64247 +33.90559 270
2022-10-16 14:21:59 C 06 37 04.963 -09 20 32.32 V T05
2022-10-16 14:27:26 C 06 37 06.264 -09 20 15.11 V T05
2022-10-16 14:37:07 C 06 37 08.594 -09 19 44.58 V T05
2022-10-16 14:45:10 C 06 37 10.522 -09 19 19.06 V T05
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)