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
2008-06-02 22:49:28 C 16 43 03.40 +20 32 41.3 r B09
2008-06-07 07:04:37 C 16 32 47.55 +26 33 19.8 r H45
2008-06-07 07:06:29 C 16 32 47.30 +26 33 26.8 r H45
2008-06-07 07:08:21 C 16 32 47.07 +26 33 34.0 r H45
2008-06-07 07:09:19 C 16 32 46.95 +26 33 37.6 r H45
2008-06-07 07:11:49 C 16 32 46.62 +26 33 47.3 r H45
2008-06-08 07:29:30 C 16 29 48.77 +28 08 56.5 r H45
2008-06-08 07:31:47 C 16 29 48.48 +28 09 05.4 r H45
2008-06-08 07:33:09 C 16 29 48.27 +28 09 11.0 r H45
2008-06-08 07:34:33 C 16 29 48.09 +28 09 16.7 r H45
2008-06-08 07:35:49 C 16 29 47.91 +28 09 21.6 r H45
2008-06-08 23:57:18 C 16 27 40.92 +29 16 12.9 r J51
2008-06-09 00:01:57 C 16 27 40.23 +29 16 32.0 r J51
2008-06-09 00:06:35 C 16 27 39.55 +29 16 51.1 r J51
2008-06-09 22:44:02 C 16 24 27.83 +30 52 38.0 r B67
2008-06-09 22:54:08 C 16 24 26.25 +30 53 22.0 r B67
2008-06-09 23:04:27 C 16 24 24.64 +30 54 06.6 r B67
2008-06-10 22:41:22 C 16 20 47.64 +32 39 17.6 r J51
2008-06-10 22:51:10 C 16 20 45.94 +32 40 02.3 r J51
2008-06-10 23:01:16 C 16 20 44.17 +32 40 48.2 r J51
2008-06-11 06:04:40 C 16 19 33.12 +33 13 05.2 r H45
2008-06-11 06:06:46 C 16 19 32.76 +33 13 14.8 r H45
2008-06-11 06:08:46 C 16 19 32.39 +33 13 24.2 r H45
2008-06-11 06:09:36 C 16 19 32.22 +33 13 27.9 r H45
2008-06-11 06:11:45 C 16 19 31.85 +33 13 37.8 r H45
2008-06-11 06:14:40 C 16 19 31.32 +33 13 51.5 r H45
2008-06-12 06:46:15 C 16 15 13.05 +35 09 53.2 r H45
2008-06-12 06:47:15 C 16 15 12.85 +35 09 57.9 r H45
2008-06-12 06:50:16 C 16 15 12.25 +35 10 12.7 r H45
2008-06-12 06:51:11 C 16 15 12.07 +35 10 16.8 r H45
2008-06-12 07:01:33 C 16 15 10.05 +35 11 06.6 r H45
2008-06-13 01:01:14 C 16 11 43.11 +36 39 48.5 c J27
2008-06-13 01:06:40 C 16 11 41.90 +36 40 15.7 c J27
2008-06-13 01:12:38 C 16 11 40.67 +36 40 45.8 c J27
2008-06-13 04:40:44 C 16 11 00.71 +36 58 21.5 r H45
2008-06-13 04:41:55 C 16 11 00.47 +36 58 27.6 r H45
2008-06-13 04:43:14 C 16 11 00.19 +36 58 34.0 r H45
2008-06-13 04:44:43 C 16 10 59.86 +36 58 41.7 r H45
2008-06-13 04:45:53 C 16 10 59.61 +36 58 47.5 r H45
2008-06-13 06:19:01 C 16 10 40.04 +37 06 39.4 16.7 c 704
2008-06-13 06:34:55 C 16 10 36.55 +37 08 00.6 16.9 c 704
2008-06-13 06:49:16 C 16 10 33.45 +37 09 13.4 17.0 c 704
2008-06-13 07:03:28 C 16 10 30.29 +37 10 24.6 16.9 c 704
2008-06-13 07:17:40 C 16 10 27.18 +37 11 36.4 17.2 c 704
2008-06-13 14:36:22 C 16 08 56.17 +37 48 59.3 m 379
2008-06-13 14:40:05 C 16 08 55.25 +37 49 19.0 m 379
2008-06-13 14:53:23 C 16 08 52.29 +37 50 26.7 m 379
2008-06-13 14:57:07 C 16 08 51.39 +37 50 45.6 m 379
2008-06-13 22:34:45 C 16 07 14.85 +38 30 26.1 r J46
2008-06-13 22:39:08 C 16 07 13.82 +38 30 49.2 r J46