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
2008-07-11 21:16:00 C 16 29 16.52 -17 48 36.0 r B38
2008-07-11 21:21:36 C 16 29 16.48 -17 48 33.5 r B38
2008-07-11 21:27:38 C 16 29 16.48 -17 48 29.8 r B38
2008-07-11 21:33:40 C 16 29 16.50 -17 48 24.5 r B38
2008-07-12 02:48:29 C 16 29 18.40 -17 44 34.1 r 808
2008-07-12 03:00:30 C 16 29 18.38 -17 44 26.3 r 808
2008-07-12 03:13:59 C 16 29 18.46 -17 44 17.6 r 808
2008-07-16 04:23:05 C 16 30 30.37 -16 43 26.7 o H55
2008-07-16 04:29:42 C 16 30 30.42 -16 43 22.4 o H55
2008-07-16 04:36:06 C 16 30 30.52 -16 43 18.3 o H55
2008-07-16 04:42:44 C 16 30 30.60 -16 43 14.4 o H55
2008-07-21 04:34:01 C 16 33 33.65 -15 31 24.9 r H53
2008-07-21 04:37:36 C 16 33 33.63 -15 31 22.7 r H53
2008-07-21 04:39:02 C 16 33 33.66 -15 31 20.8 r H53
2008-07-21 04:42:17 C 16 33 33.87 -15 31 20.4 r H53
2008-07-21 04:44:11 C 16 33 34.15 -15 31 22.1 r H53
2008-07-21 04:45:51 C 16 33 34.07 -15 31 17.9 r H53
2008-07-24 20:44:10 C 16 36 55.94 -14 41 43.7 o 151
2008-07-24 20:47:32 C 16 36 56.06 -14 41 42.0 o 151
2008-07-24 20:50:53 C 16 36 56.16 -14 41 40.3 o 151
2008-07-24 20:52:35 C 16 36 56.22 -14 41 38.9 o 151
2008-08-14 02:32:53 C 17 12 30.96 -10 56 19.0 o H55
2008-08-14 02:36:20 C 17 12 31.27 -10 56 17.7 o H55
2008-08-14 02:42:47 C 17 12 31.86 -10 56 15.9 o H55
2008-09-18 03:18:21 C 19 09 18.20 -06 11 44.3 o H55
2008-09-18 03:22:01 C 19 09 18.79 -06 11 43.1 o H55
2008-09-18 03:25:41 C 19 09 19.36 -06 11 41.8 o H55
2008-10-04 18:25:27 C 20 16 04.59 -03 57 56.3 r 240
2008-10-04 18:36:56 C 20 16 06.48 -03 57 52.5 r 240
2008-10-04 18:42:40 C 20 16 07.34 -03 57 50.4 r 240
2008-10-04 18:43:38 C 20 16 07.47 -03 57 50.1 r 240
2008-10-04 18:50:20 C 20 16 08.56 -03 57 47.9 r 240
2008-10-04 18:54:10 C 20 16 09.19 -03 57 46.4 r 240
2008-10-05 18:35:16 C 20 20 05.86 -03 49 32.3 r 130
2008-10-05 18:43:19 C 20 20 07.12 -03 49 28.1 r 130
2008-10-05 18:50:55 C 20 20 08.40 -03 49 25.4 r 130
2008-10-23 03:30:43 C 21 26 40.92 -01 19 46.8 19.2 c 704
2008-10-23 03:47:14 C 21 26 43.25 -01 19 39.3 19.2 c 704
2008-10-23 04:03:45 C 21 26 45.76 -01 19 34.3 19.8 c 704
2008-10-23 04:20:15 C 21 26 48.16 -01 19 28.0 19.2 c 704
2008-11-03 03:19:00 C 22 05 05.48 +00 18 50.3 19.5 c 704
2008-11-03 03:36:07 C 22 05 07.86 +00 18 56.4 20.1 c 704
2008-11-03 03:53:09 C 22 05 10.17 +00 19 03.9 19.6 c 704
2008-12-01 02:26:07 C 23 29 20.94 +04 41 16.1 r G96
2008-12-01 02:35:32 C 23 29 21.98 +04 41 20.2 r G96
2008-12-01 02:44:56 C 23 29 22.99 +04 41 23.8 r G96
2008-12-01 02:54:29 C 23 29 24.07 +04 41 27.9 r G96
2008-12-30 02:55:47 C 00 42 06.602 +09 20 58.42 645
2008-12-30 02:56:59 C 00 42 06.718 +09 20 58.85 645
2008-12-30 03:00:34 C 00 42 07.058 +09 21 00.18 645