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
2000-02-28 04:39:10 C 05 33 57.80 +15 51 47.0 693
2008-05-14 08:07:58 C 17 02 15.00 +03 47 51.1 r 703
2008-05-14 08:17:21 C 17 02 14.82 +03 48 03.9 r 703
2008-05-14 08:26:45 C 17 02 14.67 +03 48 17.8 r 703
2008-05-14 08:36:08 C 17 02 14.53 +03 48 31.3 r 703
2008-05-15 08:37:31 C 17 01 55.45 +04 23 45.9 r 703
2008-05-15 08:48:45 C 17 01 55.23 +04 24 02.3 r 703
2008-05-15 09:11:01 C 17 01 54.80 +04 24 35.5 r 703
2008-05-15 09:12:38 C 17 01 54.76 +04 24 37.0 r G96
2008-05-15 09:21:24 C 17 01 54.62 +04 24 50.9 r G96
2008-05-15 09:30:40 C 17 01 54.44 +04 25 04.6 r G96
2008-05-19 06:31:37 C 17 00 09.63 +06 53 58.7 r H45
2008-05-19 06:34:25 C 17 00 09.56 +06 54 02.9 r H45
2008-05-19 06:35:50 C 17 00 09.52 +06 54 05.9 r H45
2008-05-19 06:36:58 C 17 00 09.48 +06 54 07.2 r H45
2008-05-19 06:38:40 C 17 00 09.47 +06 54 10.5 r H45
2008-05-19 06:41:04 C 17 00 09.39 +06 54 14.8 r H45
2008-05-21 04:41:07 C 16 58 57.60 +08 15 58.6 r H51
2008-05-21 04:45:03 C 16 58 57.44 +08 16 04.9 r H51
2008-05-21 04:46:01 C 16 58 57.46 +08 16 06.7 r H51
2008-05-21 04:47:01 C 16 58 57.43 +08 16 08.6 r H51
2008-05-21 04:47:59 C 16 58 57.37 +08 16 11.0 r H51
2008-05-27 00:05:36 C 16 53 40.06 +13 03 51.8 r 118
2008-05-27 00:09:43 C 16 53 39.83 +13 04 01.3 r 118
2008-05-27 00:12:34 C 16 53 39.68 +13 04 07.9 r 118
2008-05-31 05:45:55 C 16 47 53.49 +17 21 24.4 r H45
2008-05-31 05:47:36 C 16 47 53.35 +17 21 29.2 r H45
2008-05-31 05:51:05 C 16 47 53.10 +17 21 39.0 r H45
2008-05-31 06:00:32 C 16 47 52.38 +17 22 04.5 r H45
2008-05-31 06:02:04 C 16 47 52.28 +17 22 09.1 r H45
2008-05-31 06:03:10 C 16 47 52.17 +17 22 12.1 r H45
2008-05-31 08:19:38 C 16 47 42.32 +17 28 32.1 r 448
2008-05-31 08:22:41 C 16 47 42.10 +17 28 40.5 r 448
2008-05-31 08:25:45 C 16 47 41.86 +17 28 49.0 r 448
2008-05-31 08:28:48 C 16 47 41.63 +17 28 57.6 r 448
2008-05-31 08:31:52 C 16 47 41.41 +17 29 06.0 r 448
2008-05-31 20:29:55 C 16 46 53.76 +18 02 35.6 o 151
2008-05-31 20:30:33 C 16 46 53.73 +18 02 38.0 o 151
2008-05-31 20:31:12 C 16 46 53.70 +18 02 40.5 o 151
2008-05-31 20:31:50 C 16 46 53.66 +18 02 41.9 o 151
2008-05-31 20:33:36 C 16 46 53.53 +18 02 47.1 o 151
2008-05-31 20:34:23 C 16 46 53.49 +18 02 49.1 o 151
2008-05-31 20:35:41 C 16 46 53.38 +18 02 52.7 o 151
2008-05-31 20:36:57 C 16 46 53.30 +18 02 56.5 o 151
2008-05-31 20:38:13 C 16 46 53.21 +18 03 00.2 o 151
2008-05-31 21:33:52 C 16 46 49.00 +18 05 40.9 r A13
2008-05-31 22:22:18 C 16 46 45.24 +18 07 59.8 r A13
2008-06-02 22:01:12 C 16 43 07.67 +20 30 10.1 r B09
2008-06-02 22:08:04 C 16 43 07.07 +20 30 31.6 r B09
2008-06-02 22:43:17 C 16 43 03.85 +20 32 22.2 r B09