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
2007-02-13 17:45:44 C 02 33 44.67 +53 06 35.9 c A94
2007-02-13 17:48:02 C 02 33 43.99 +53 06 28.3 c A94
2007-02-13 17:53:26 C 02 33 45.63 +53 06 12.4 c A94
2008-07-24 22:50:12 C 03 39 23.42 +52 57 09.6 o A17
2008-07-24 23:14:21 C 03 39 25.39 +52 58 06.2 o A17
2008-07-24 23:38:29 C 03 39 27.29 +52 59 05.1 o A17
2010-09-10 02:21:14 C 14 53 09.79 +39 26 48.0 u 448
2010-09-10 02:37:12 C 14 53 16.13 +39 27 18.3 u 448
2010-09-10 02:53:40 C 14 53 22.61 +39 27 49.8 u 448
2010-09-18 03:14:58 C 15 58 56.46 +43 21 33.8 r 703
2010-09-18 03:25:35 C 15 58 59.59 +43 21 40.1 r 703
2010-09-18 03:36:16 C 15 59 02.61 +43 21 47.5 r 703
2010-09-18 03:46:56 C 15 59 05.56 +43 21 53.3 r 703
2010-09-19 02:37:33 C 16 05 31.14 +43 36 04.8 19.2 c 704
2010-09-19 02:55:35 C 16 05 36.09 +43 36 12.4 19.7 c 704
2010-09-19 03:31:41 C 16 05 45.96 +43 36 32.6 19.7 c 704
2010-09-19 03:49:46 C 16 05 50.90 +43 36 42.8 19.4 c 704
2010-09-19 10:53:59 C 16 07 46.94 +43 40 40.0 o 300
2010-09-19 10:56:44 C 16 07 47.70 +43 40 41.4 o 300
2010-09-19 10:58:10 C 16 07 48.07 +43 40 41.3 o 300
2010-09-19 10:59:32 C 16 07 48.45 +43 40 42.3 o 300
2010-09-19 11:00:54 C 16 07 48.78 +43 40 43.5 o 300
2010-09-23 01:25:22 C 16 29 37.25 +44 16 07.2 o H21
2010-09-23 01:34:40 C 16 29 39.38 +44 16 09.2 o H21
2010-09-23 01:44:23 C 16 29 41.59 +44 16 12.1 o H21
2010-09-25 19:22:03 C 16 44 17.73 +44 30 51.8 v 204
2010-09-25 19:39:02 C 16 44 21.28 +44 30 53.9 v 204
2011-10-20 02:30:41 C 17 46 31.40 +13 56 53.6 r G96
2011-10-20 02:38:20 C 17 46 32.77 +13 57 03.8 r G96
2011-10-20 02:45:53 C 17 46 34.03 +13 57 14.1 r G96
2011-10-20 02:53:31 C 17 46 35.40 +13 57 24.4 r G96
2018-12-13 12:22:50 C 12 48 08.92 +25 24 29.4 U I41
2018-12-13 12:26:08 C 12 48 09.24 +25 24 23.9 U I41
2018-12-13 13:12:00 C 12 48 14.21 +25 23 07.5 U I41
2018-12-13 13:13:20 C 12 48 14.37 +25 23 05.4 U I41
2019-01-09 15:12:53 C 14 35 45.095 -09 53 56.90 U F51
2019-01-09 15:20:16 C 14 35 47.113 -09 54 38.76 U F51
2019-01-09 15:27:44 C 14 35 49.092 -09 55 20.08 U F51
2019-01-09 15:35:09 C 14 35 51.096 -09 56 01.74 U F51
2019-12-29 14:55:37 C 13 19 43.69 +54 33 15.3 V T08
2019-12-29 14:59:46 C 13 19 44.02 +54 33 17.4 V T08
2019-12-29 15:11:04 C 13 19 44.96 +54 33 21.6 V T08
2019-12-29 15:25:39 C 13 19 46.27 +54 33 27.1 V T08
2019-12-30 03:08:28 C 13 20 51.83 +54 37 59.9 V C95
2019-12-30 03:22:04 C 13 20 53.20 +54 38 05.6 V C95
2020-01-02 14:59:42 C 13 28 58.19 +55 16 31.7 V T08
2020-01-02 15:00:22 C 13 28 58.24 +55 16 31.7 V T08
2020-01-02 15:03:42 C 13 28 58.47 +55 16 33.5 V T08
2020-01-02 15:04:21 C 13 28 58.56 +55 16 34.5 V T08
2020-01-02 15:14:13 C 13 28 59.48 +55 16 39.0 V T08
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)