508772 (1998 WP7)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4329104661 ± 9.35e-08
Semi-major axis (a)1.2250710881 AU ± 1.16e-09
Inclination (i)21.96923816° ± 8.35e-06
Long. of Asc. Node (Ω)230.71750283° ± 4.22e-06
Arg. of Perihelion (ω)65.47842759° ± 9.19e-06
Mean Anomaly (M)29.09191826° ± 6.74e-06
Mean Motion (n)0.7268927552°/day ± 1.03e-09
Perihelion dist (q)0.69472499 AU ± 1.15e-07
Aphelion dist (Q)1.75541718 AU ± 1.15e-07
Orbital Period1.35594457 yr ± 1.92e-09
Physical Parameters
H (abs. magnitude)19.85
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.322″
Uncertainty0
Orbit TypeApollo
MOID0.121624 AU
Observations Used186
Oppositions7
Arc Total1998-2025
First Observation Used1998-11-23
Last Observation Used2025-01-20
Observations (196)
Date Type RA Dec Mag Band Observatory
1998-11-23 04:54:04 C 01 17 20.25 +06 30 44.5 a 699
1998-11-23 05:30:46 C 01 17 23.89 +06 29 31.1 a 699
1998-11-23 06:21:05 C 01 17 28.83 +06 27 50.1 a 699
1998-11-23 22:47:29 C 01 19 10.27 +05 55 52.2 557
1998-11-23 22:52:12 C 01 19 10.74 +05 55 42.2 557
1998-11-24 19:41:39 C 01 21 15.91 +05 17 48.3 557
1998-11-24 19:44:31 C 01 21 16.17 +05 17 43.4 557
1998-11-25 11:46:26 C 01 22 48.51 +04 50 52.8 b 426
1998-11-25 12:03:42 C 01 22 50.07 +04 50 23.8 b 426
1998-11-25 12:20:51 C 01 22 51.55 +04 49 54.8 b 426
1998-11-25 13:28:30 C 01 22 57.63 +04 47 32.7 360
1998-11-25 13:33:44 C 01 22 58.11 +04 47 24.8 360
1998-11-25 13:39:00 C 01 22 58.56 +04 47 15.7 360
1998-11-26 10:41:55 C 01 24 56.94 +04 13 34.0 z 402
1998-11-26 10:43:54 C 01 24 57.13 +04 13 29.9 z 402
1998-11-26 10:45:54 C 01 24 57.33 +04 13 27.3 z 402
1998-11-26 10:47:54 C 01 24 57.52 +04 13 24.7 z 402
1998-11-27 11:10:02 C 01 27 08.36 +03 37 43.1 b 426
1998-11-27 11:27:07 C 01 27 09.79 +03 37 18.7 b 426
1998-11-27 11:45:53 C 01 27 11.26 +03 36 53.0 b 426
2013-11-28 07:49:33 C 05 08 12.44 +00 21 37.3 q 703
2013-11-28 07:58:16 C 05 08 11.29 +00 21 26.0 q 703
2013-11-28 08:15:42 C 05 08 09.01 +00 21 05.1 q 703
2013-11-28 09:50:47 C 05 07 56.40 +00 19 12.1 q 703
2013-11-28 09:55:21 C 05 07 55.93 +00 19 06.5 q 703
2013-11-28 10:52:52 C 05 07 48.32 +00 17 57.8 q 703
2013-11-28 10:56:18 C 05 07 47.89 +00 17 54.1 q 703
2013-11-28 10:59:43 C 05 07 47.40 +00 17 49.3 q 703
2013-11-29 01:26:49 C 05 05 57.88 +00 00 44.6 q 204
2013-11-29 01:47:02 C 05 05 55.27 +00 00 21.3 q 204
2013-11-29 02:06:52 C 05 05 52.68 -00 00 01.2 q 204
2013-11-29 04:19:12 C 05 05 36.75 -00 02 12.8 u 807
2013-11-29 04:22:50 C 05 05 36.27 -00 02 17.1 u 807
2013-11-29 04:26:30 C 05 05 35.79 -00 02 21.3 u 807
2013-11-29 04:30:09 C 05 05 35.31 -00 02 25.4 u 807
2013-11-29 04:33:47 C 05 05 34.84 -00 02 29.7 u 807
2013-11-29 07:09:54 C 05 05 14.80 -00 05 51.0 u H21
2013-11-29 07:13:54 C 05 05 14.30 -00 05 55.7 u H21
2013-11-29 07:17:44 C 05 05 13.80 -00 06 00.1 u H21
2013-11-29 07:21:26 C 05 05 13.31 -00 06 04.4 u H21
2013-11-29 08:16:41 C 05 05 06.48 -00 07 06.4 q G96
2013-11-29 08:20:34 C 05 05 06.00 -00 07 10.6 q G96
2013-11-29 08:24:27 C 05 05 05.49 -00 07 14.9 q G96
2013-11-29 08:28:10 C 05 05 05.01 -00 07 19.2 q G96
2013-11-29 16:36:08 C 05 04 03.99 -00 16 36.7 q D29
2013-11-29 16:59:03 C 05 04 01.01 -00 17 02.0 q D29
2013-11-29 17:21:58 C 05 03 58.03 -00 17 28.4 q D29
2013-11-30 04:19:00 C 05 02 36.73 -00 29 25.9 u 807
2013-11-30 04:22:36 C 05 02 36.26 -00 29 29.9 u 807
2013-11-30 04:26:12 C 05 02 35.80 -00 29 33.9 u 807