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
2022-07-24 00:59:28 C 22 37 28.404 -19 44 59.65 X L10
2022-07-24 01:00:30 C 22 37 28.463 -19 44 59.98 X L10
2022-07-24 01:01:33 C 22 37 28.521 -19 45 00.22 X L10
2022-07-24 01:02:35 C 22 37 28.585 -19 45 00.53 X L10
2022-07-24 01:03:38 C 22 37 28.645 -19 45 00.89 X L10
2022-07-24 01:04:40 C 22 37 28.700 -19 45 01.25 X L10
2022-07-24 01:05:43 C 22 37 28.765 -19 45 01.58 X L10
2022-07-24 01:06:45 C 22 37 28.821 -19 45 01.89 X L10
2022-07-24 01:07:48 C 22 37 28.875 -19 45 02.16 X L10
2022-07-24 01:08:50 C 22 37 28.938 -19 45 02.55 X L10
2022-07-24 01:09:53 C 22 37 28.999 -19 45 02.93 X L10
2022-07-24 01:10:55 C 22 37 29.056 -19 45 03.25 X L10
2022-07-24 01:11:58 C 22 37 29.127 -19 45 03.51 X L10
2022-07-24 01:13:00 C 22 37 29.181 -19 45 03.86 X L10
2022-07-24 01:14:03 C 22 37 29.234 -19 45 04.26 X L10
2022-07-24 01:15:05 C 22 37 29.298 -19 45 04.56 X L10
2022-07-25 00:23:03 C 22 38 57.367 -19 52 33.45 X L10
2022-07-25 00:24:01 C 22 38 57.423 -19 52 33.68 X L10
2022-07-25 00:25:00 C 22 38 57.480 -19 52 34.00 X L10
2022-07-25 00:25:59 C 22 38 57.541 -19 52 34.34 X L10
2022-07-25 00:26:58 C 22 38 57.591 -19 52 34.59 X L10
2022-07-25 00:27:57 C 22 38 57.646 -19 52 34.94 X L10
2022-07-25 00:28:56 C 22 38 57.704 -19 52 35.34 X L10
2022-07-25 00:29:54 C 22 38 57.768 -19 52 35.72 X L10
2022-07-25 00:30:53 C 22 38 57.820 -19 52 35.95 X L10
2022-07-25 00:31:52 C 22 38 57.873 -19 52 36.31 X L10
2022-07-25 00:32:51 C 22 38 57.927 -19 52 36.65 X L10
2022-07-25 00:33:50 C 22 38 57.984 -19 52 36.97 X L10
2022-07-25 00:34:48 C 22 38 58.040 -19 52 37.24 X L10
2022-07-25 00:35:47 C 22 38 58.095 -19 52 37.56 X L10
2022-07-25 00:36:46 C 22 38 58.148 -19 52 37.92 X L10
2022-07-25 00:37:45 C 22 38 58.210 -19 52 38.25 X L10
2022-07-25 00:38:44 C 22 38 58.259 -19 52 38.57 X L10
2022-07-25 00:39:43 C 22 38 58.327 -19 52 38.95 X L10
2022-07-25 00:40:41 C 22 38 58.381 -19 52 39.26 X L10
2022-07-25 00:41:40 C 22 38 58.438 -19 52 39.62 X L10
2022-07-25 01:23:34 C 22 39 00.855 -19 52 53.70 X L10
2022-07-25 01:24:36 C 22 39 00.910 -19 52 53.87 X L10
2022-07-25 01:25:39 C 22 39 00.971 -19 52 54.30 X L10
2022-07-25 01:26:41 C 22 39 01.022 -19 52 54.53 X L10
2022-07-25 01:27:44 C 22 39 01.081 -19 52 54.78 X L10
2022-07-25 01:28:46 C 22 39 01.147 -19 52 55.31 X L10
2022-07-25 01:29:49 C 22 39 01.205 -19 52 55.62 X L10
2022-07-25 01:30:51 C 22 39 01.274 -19 52 55.95 X L10
2022-07-25 01:31:54 C 22 39 01.326 -19 52 56.18 X L10
2022-07-25 01:32:56 C 22 39 01.387 -19 52 56.56 X L10
2022-07-25 01:33:59 C 22 39 01.450 -19 52 56.95 X L10
2022-07-25 01:35:01 C 22 39 01.509 -19 52 57.27 X L10
2022-07-25 01:36:04 C 22 39 01.561 -19 52 57.51 X L10
2022-07-25 01:37:06 C 22 39 01.621 -19 52 57.81 X L10
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)