250577 (2005 AC)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5177899759 ± 4.66e-08
Semi-major axis (a)1.0498878886 AU ± 1.40e-09
Inclination (i)46.88188522° ± 2.24e-05
Long. of Asc. Node (Ω)315.75700687° ± 1.15e-05
Arg. of Perihelion (ω)285.59238587° ± 1.04e-05
Mean Anomaly (M)89.72869737° ± 1.12e-05
Mean Motion (n)0.9162160334°/day ± 1.83e-09
Perihelion dist (q)0.50626646 AU ± 4.90e-08
Aphelion dist (Q)1.59350931 AU ± 4.90e-08
Orbital Period1.07575752 yr ± 2.15e-09
Physical Parameters
H (abs. magnitude)18.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.541″
Uncertainty0
Orbit TypeApollo
MOID0.073964 AU
Observations Used255
Radar Obs Used1
Oppositions1
Arc Total2004-2020
First Observation Used2004-12-15
Last Observation Used2025-10-09
Observations (400)
Date Type RA Dec Mag Band Observatory
2004-12-15 11:50:53 C 12 51 10.911 +30 52 21.66 n 645
2004-12-15 11:52:05 C 12 51 11.034 +30 52 20.12 n 645
2004-12-15 11:54:28 C 12 51 11.280 +30 52 17.08 n 645
2004-12-15 11:55:40 C 12 51 11.401 +30 52 15.29 n 645
2004-12-21 12:00:37 C 13 07 09.920 +27 13 04.24 n 645
2004-12-21 12:01:48 C 13 07 10.063 +27 13 02.35 n 645
2004-12-21 12:04:12 C 13 07 10.346 +27 12 58.19 n 645
2004-12-21 12:05:23 C 13 07 10.480 +27 12 56.24 n 645
2005-01-01 11:37:01 C 13 43 26.43 +16 56 36.6 d 703
2005-01-01 11:46:13 C 13 43 27.99 +16 56 07.7 d 703
2005-01-01 11:55:24 C 13 43 29.51 +16 55 38.5 d 703
2005-01-01 12:04:38 C 13 43 30.97 +16 55 10.0 d 703
2005-01-01 13:11:46 C 13 43 41.71 +16 51 37.5 d 703
2005-01-01 13:13:20 C 13 43 42.00 +16 51 32.3 d 703
2005-01-01 13:14:52 C 13 43 42.24 +16 51 28.3 d 703
2005-01-01 13:16:26 C 13 43 42.43 +16 51 23.2 d 703
2005-01-02 03:23:39 C 13 46 04.85 +16 05 47.6 r J95
2005-01-02 03:40:43 C 13 46 07.57 +16 04 52.1 r J95
2005-01-02 03:51:24 C 13 46 09.36 +16 04 16.9 r J95
2005-01-03 04:11:21 C 13 50 22.55 +14 41 48.4 r J95
2005-01-03 04:27:05 C 13 50 25.28 +14 40 53.7 r J95
2005-01-03 04:39:55 C 13 50 27.46 +14 40 09.0 r J95
2005-01-05 04:00:51 C 13 59 14.46 +11 43 29.6 r J95
2005-01-05 04:14:13 C 13 59 17.04 +11 42 36.5 r J95
2005-01-05 04:27:46 C 13 59 19.59 +11 41 41.7 r J95
2005-01-06 11:03:23 C 14 05 27.62 +09 35 07.7 o H06
2005-01-06 11:08:40 C 14 05 28.69 +09 34 44.4 o H06
2005-01-06 11:14:02 C 14 05 29.78 +09 34 21.1 o H06
2005-01-13 05:35:10 C 14 45 58.47 -04 52 50.6 r J95
2005-01-13 05:46:30 C 14 46 01.80 -04 54 03.4 r J95
2005-01-13 05:58:18 C 14 46 05.27 -04 55 20.3 r J95
2005-11-27 05:17:49 C 12 18 10.88 +56 59 47.8 o J95
2005-11-27 05:26:04 C 12 18 11.67 +56 59 49.7 o J95
2005-11-27 05:34:18 C 12 18 12.43 +56 59 49.6 o J95
2005-12-17 00:47:32 C 13 00 08.15 +58 44 13.4 o J95
2005-12-17 01:06:27 C 13 00 09.89 +58 44 21.8 o J95
2005-12-17 01:25:16 C 13 00 11.43 +58 44 30.0 o J95
2006-01-18 09:47:23 C 14 30 46.39 +74 37 58.1 18.1 c 704
2006-01-18 10:09:08 C 14 30 52.74 +74 39 01.2 18.1 c 704
2006-01-18 10:27:59 C 14 30 58.21 +74 39 54.9 17.8 c 704
2006-01-18 10:46:37 C 14 31 03.59 +74 40 48.9 18.2 c 704
2006-01-18 11:05:05 C 14 31 08.93 +74 41 41.2 18.4 c 704
2006-02-03 18:05:50 C 00 41 29.83 +62 43 41.4 17.8 c 130
2006-02-03 18:07:30 C 00 41 30.39 +62 43 22.9 18.0 c 130
2006-02-03 18:09:20 C 00 41 31.04 +62 43 02.3 18.0 c 130
2006-02-03 18:11:21 C 00 41 31.77 +62 42 39.5 18.0 c 130
2006-02-04 02:56:25 C 00 44 26.00 +61 04 12.5 c 670
2006-02-04 03:03:04 C 00 44 28.02 +61 02 57.0 c 670
2006-02-04 03:07:45 C 00 44 29.46 +61 02 02.3 c 670
2007-02-13 17:35:46 C 02 33 43.48 +53 07 05.4 c A94
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2020-02-05 17:54:00 89347511.41 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)