280244 (2002 WP11)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4414931937 ± 2.83e-08
Semi-major axis (a)2.1250444858 AU ± 1.22e-08
Inclination (i)5.39387899° ± 3.51e-06
Long. of Asc. Node (Ω)267.84208950° ± 3.55e-05
Arg. of Perihelion (ω)56.22795741° ± 3.75e-05
Mean Anomaly (M)199.95068995° ± 2.07e-05
Mean Motion (n)0.3181707393°/day ± 2.74e-09
Perihelion dist (q)1.18685181 AU ± 6.06e-08
Aphelion dist (Q)3.06323716 AU ± 6.27e-08
Orbital Period3.09779047 yr ± 2.67e-08
Physical Parameters
H (abs. magnitude)18.22
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.354″
Uncertainty0
Orbit TypeAmor
MOID0.190781 AU
Observations Used281
Oppositions15
Arc Total2002-2024
First Observation Used2002-11-24
Last Observation Used2024-12-30
Observations (306)
Date Type RA Dec Mag Band Observatory
2005-10-29 07:33:34 C 01 57 25.38 +25 16 51.6 r 703
2005-10-30 05:14:28 C 01 56 43.06 +25 02 18.8 o 644
2005-10-30 05:45:16 C 01 56 41.93 +25 01 58.3 o 644
2005-10-30 06:16:46 C 01 56 40.81 +25 01 37.8 o 644
2005-11-01 21:44:05 C 01 54 43.39 +24 19 21.0 r 084
2005-11-02 20:38:03 C 01 54 04.57 +24 04 19.2 r 084
2005-11-03 07:49:17 C 01 53 45.83 +23 57 08.3 18.6 c 704
2005-11-03 08:06:44 C 01 53 45.30 +23 56 56.6 18.7 c 704
2005-11-03 08:24:25 C 01 53 44.73 +23 56 45.0 18.7 c 704
2005-11-03 08:42:02 C 01 53 44.21 +23 56 33.3 18.6 c 704
2005-11-03 08:59:28 C 01 53 43.69 +23 56 21.6 18.7 c 704
2005-11-07 06:08:03 C 01 51 30.38 +22 57 11.2 18.6 c 704
2005-11-07 06:25:43 C 01 51 29.96 +22 57 00.1 18.7 c 704
2005-11-07 06:43:24 C 01 51 29.53 +22 56 49.4 18.7 c 704
2005-11-07 07:00:58 C 01 51 29.13 +22 56 38.2 18.6 c 704
2005-11-07 07:18:33 C 01 51 28.66 +22 56 27.6 18.8 c 704
2005-11-08 23:05:56 C 01 50 41.88 +22 32 06.0 i 071
2005-11-08 23:11:01 C 01 50 41.77 +22 32 03.7 i 071
2005-11-08 23:17:13 C 01 50 41.61 +22 32 00.6 i 071
2005-11-25 05:27:10 C 01 48 43.23 +19 17 43.7 r 703
2005-11-25 05:38:00 C 01 48 43.30 +19 17 41.1 r 703
2005-11-25 05:48:52 C 01 48 43.34 +19 17 35.8 r 703
2005-11-25 05:59:40 C 01 48 43.45 +19 17 31.7 r 703
2005-12-02 04:52:46 C 01 50 49.34 +18 21 30.0 o 704
2005-12-02 05:10:50 C 01 50 49.71 +18 21 24.9 o 704
2005-12-02 05:29:08 C 01 50 49.86 +18 21 18.7 o 704
2005-12-02 06:05:44 C 01 50 50.54 +18 21 08.2 o 704
2005-12-29 02:35:19 C 02 11 44.17 +16 58 51.0 c 711
2005-12-29 02:52:05 C 02 11 44.99 +16 58 51.3 c 711
2005-12-29 03:08:51 C 02 11 45.59 +16 58 51.0 c 711
2008-06-12 04:05:50 C 16 46 58.73 -25 15 12.6 r 808
2008-06-12 04:15:29 C 16 46 58.27 -25 15 08.0 r 808
2008-06-12 04:25:30 C 16 46 57.88 -25 15 04.7 r 808
2008-06-25 14:04:27 C 16 34 53.40 -22 06 46.3 r E12
2008-06-25 14:20:37 C 16 34 52.78 -22 06 35.6 r E12
2008-06-25 14:36:49 C 16 34 52.21 -22 06 25.2 r E12
2008-06-25 14:53:01 C 16 34 51.63 -22 06 14.2 r E12
2008-06-28 08:29:39 C 16 33 00.51 -21 23 17.8 r E17
2008-06-28 08:39:51 C 16 33 00.22 -21 23 12.0 r E17
2008-06-28 08:50:02 C 16 32 59.90 -21 23 05.2 r E17
2008-07-01 05:20:26 C 16 31 21.23 -20 37 58.4 18.5 c 704
2008-07-01 05:35:34 C 16 31 20.90 -20 37 48.8 19.1 c 704
2008-07-01 05:50:37 C 16 31 20.49 -20 37 39.3 18.6 c 704
2008-07-01 06:05:33 C 16 31 20.08 -20 37 28.2 18.8 c 704
2008-07-01 06:20:31 C 16 31 19.67 -20 37 18.5 18.8 c 704
2008-07-10 02:15:59 C 16 29 07.85 -18 16 02.5 r 808
2008-07-10 02:26:30 C 16 29 07.83 -18 15 55.8 r 808
2008-07-10 02:37:09 C 16 29 07.76 -18 15 48.4 r 808
2008-07-11 21:07:03 C 16 29 16.55 -17 48 43.7 r B38
2008-07-11 21:10:23 C 16 29 16.51 -17 48 39.5 r B38