257744 (2000 AD205)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5860322373 ± 1.17e-08
Semi-major axis (a)1.6949357661 AU ± 1.35e-09
Inclination (i)7.92368884° ± 1.57e-06
Long. of Asc. Node (Ω)157.16617634° ± 2.93e-05
Arg. of Perihelion (ω)192.08390284° ± 2.90e-05
Mean Anomaly (M)301.18019953° ± 1.49e-06
Mean Motion (n)0.4466655006°/day ± 5.32e-10
Perihelion dist (q)0.70164877 AU ± 1.98e-08
Aphelion dist (Q)2.68822277 AU ± 1.99e-08
Orbital Period2.20663177 yr ± 2.63e-09
Physical Parameters
H (abs. magnitude)18.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.273″
Uncertainty0
Orbit TypeApollo
MOID0.129197 AU
Observations Used519
Oppositions14
Arc Total2000-2025
First Observation Used2000-01-08
Last Observation Used2025-03-19
Observations (561)
Date Type RA Dec Mag Band Observatory
2010-04-20 08:11:54 C 13 32 39.94 +02 16 52.2 r G96
2010-04-20 08:19:58 C 13 32 39.40 +02 16 56.5 r G96
2010-04-20 08:28:06 C 13 32 38.83 +02 17 01.3 r G96
2010-04-20 08:36:12 C 13 32 38.29 +02 17 05.4 r G96
2010-12-16 19:48:10 S 00 48 17.414 -29 50 09.71 L C51
2010-12-16 22:58:42 S 00 49 44.890 -29 38 56.08 L C51
2010-12-17 00:33:52 S 00 50 28.354 -29 33 18.50 L C51
2010-12-17 02:09:13 S 00 51 11.755 -29 27 40.36 L C51
2010-12-17 03:44:23 S 00 51 54.938 -29 22 02.24 L C51
2010-12-17 06:54:54 S 00 53 20.933 -29 10 44.40 L C51
2010-12-31 20:30:12 C 02 42 48.44 -10 12 50.5 v 204
2010-12-31 20:36:16 C 02 42 49.69 -10 12 34.6 v 204
2010-12-31 20:42:20 C 02 42 50.94 -10 12 18.8 v 204
2010-12-31 20:48:24 C 02 42 52.19 -10 12 03.2 v 204
2010-12-31 20:54:28 C 02 42 53.45 -10 11 47.2 v 204
2011-01-01 20:15:58 C 02 47 42.92 -09 11 51.5 v 204
2011-01-01 20:22:36 C 02 47 44.24 -09 11 34.7 v 204
2011-01-01 20:29:15 C 02 47 45.56 -09 11 18.0 v 204
2011-01-01 20:35:51 C 02 47 46.84 -09 11 01.6 v 204
2011-01-01 20:42:31 C 02 47 48.17 -09 10 44.6 v 204
2011-01-02 01:11:32 C 02 48 42.85 -08 59 28.6 o H20
2011-01-02 01:14:44 C 02 48 43.45 -08 59 20.5 o H20
2011-01-02 01:17:51 C 02 48 44.08 -08 59 12.8 o H20
2011-01-02 01:20:58 C 02 48 44.69 -08 59 04.2 o H20
2011-01-02 03:18:31 C 02 49 07.54 -08 54 11.4 o H21
2011-01-02 03:21:53 C 02 49 08.20 -08 54 03.1 o H21
2011-01-02 03:25:47 C 02 49 08.95 -08 53 53.3 o H21
2011-01-02 03:29:59 C 02 49 09.77 -08 53 42.8 o H21
2011-01-05 00:41:22 C 03 02 09.71 -06 10 47.9 o H20
2011-01-05 00:45:23 C 03 02 10.38 -06 10 38.5 o H20
2011-01-05 00:49:21 C 03 02 11.07 -06 10 30.1 o H20
2011-01-05 00:53:23 C 03 02 11.75 -06 10 21.1 o H20
2011-01-13 02:32:04 C 03 31 55.52 -00 00 48.1 r 703
2011-01-13 02:39:32 C 03 31 56.56 -00 00 35.9 r 703
2011-01-13 02:46:57 C 03 31 57.50 -00 00 23.0 r 703
2011-01-13 02:54:21 C 03 31 58.40 -00 00 12.0 r 703
2016-02-05 11:45:06 C 11 18 35.139 +04 22 25.88 L F51
2016-02-05 12:02:05 C 11 18 34.446 +04 22 31.58 L F51
2016-02-05 12:19:07 C 11 18 33.732 +04 22 37.36 L F51
2016-03-06 07:55:18 C 10 42 14.363 +09 11 21.32 L F51
2016-03-06 08:12:08 C 10 42 13.422 +09 11 28.26 L F51
2016-03-06 08:28:58 C 10 42 12.493 +09 11 35.18 L F51
2018-02-20 07:03:39 C 09 44 26.976 +11 08 57.57 U F51
2018-02-20 07:20:24 C 09 44 25.973 +11 09 04.48 U F51
2018-02-20 07:37:08 C 09 44 24.960 +11 09 11.75 U F51
2018-02-20 07:53:56 C 09 44 23.924 +11 09 18.93 U F51
2018-03-07 05:45:08 C 09 25 28.484 +13 25 54.93 U F51
2018-03-07 06:01:53 C 09 25 27.716 +13 26 00.09 U F51
2018-03-07 06:18:38 C 09 25 26.950 +13 26 05.72 U F51
2018-03-07 06:35:21 C 09 25 26.187 +13 26 10.99 U F51