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
2017-11-19 06:04:23 C 01 44 03.84 +10 13 03.5 U 703
2017-11-19 21:57:27 C 01 44 55.71 +09 29 21.0 q 160
2017-11-19 22:00:30 C 01 44 55.96 +09 29 12.7 q 160
2017-11-19 22:03:21 C 01 44 55.97 +09 29 06.9 q 160
2017-11-20 08:59:22 C 01 45 30.94 +09 00 39.0 U T08
2017-11-20 09:22:28 C 01 45 31.97 +08 59 39.2 U T08
2017-11-20 09:30:57 C 01 45 32.39 +08 59 16.9 U T08
2017-11-20 09:49:15 C 01 45 33.20 +08 58 30.0 U T08
2017-11-20 10:01:23 C 01 45 33.757 +08 57 57.88 L F51
2017-11-20 10:19:11 C 01 45 34.560 +08 57 12.06 L F51
2017-11-20 10:36:58 C 01 45 35.363 +08 56 26.25 L F51
2017-11-20 10:54:46 C 01 45 36.177 +08 55 40.61 L F51
2017-11-23 05:54:45 C 01 49 00.62 +06 22 05.9 U 703
2017-11-23 06:04:01 C 01 49 00.97 +06 21 46.0 U 703
2017-11-23 06:13:20 C 01 49 01.39 +06 21 27.4 U 703
2017-11-23 06:22:37 C 01 49 01.74 +06 21 08.7 U 703
2017-11-23 08:32:46 C 01 49 08.44 +06 16 50.2 U T08
2017-11-23 08:44:45 C 01 49 08.92 +06 16 26.2 U T08
2017-11-23 08:56:37 C 01 49 09.41 +06 16 02.1 U T08
2017-11-23 09:08:28 C 01 49 09.88 +06 15 38.2 U T08
2017-11-24 05:13:48 C 01 50 08.38 +05 36 13.1 U G96
2017-11-24 05:25:43 C 01 50 08.86 +05 35 50.7 U G96
2017-11-24 05:33:15 C 01 50 09.17 +05 35 36.4 U G96
2017-11-24 05:40:46 C 01 50 09.47 +05 35 22.1 U G96
2017-11-26 21:35:23 C 01 53 08.37 +03 46 24.6 U 130
2017-11-26 21:40:52 C 01 53 08.59 +03 46 16.4 U 130
2017-11-27 03:44:13 C 01 53 25.82 +03 37 09.3 U 703
2017-11-27 03:59:33 C 01 53 26.40 +03 36 48.3 U 703
2017-11-27 04:07:14 C 01 53 26.73 +03 36 36.4 U 703
2017-12-11 12:28:47 C 02 08 36.02 -01 28 10.9 q D29
2017-12-11 12:30:04 C 02 08 36.06 -01 28 11.3 q D29
2017-12-11 13:14:37 C 02 08 37.85 -01 28 31.3 q D29
2017-12-11 13:15:53 C 02 08 37.95 -01 28 31.2 q D29
2018-01-12 06:12:19 C 02 46 29.540 -01 55 55.98 U F51
2018-01-12 06:28:27 C 02 46 30.402 -01 55 52.30 U F51
2018-01-12 06:44:36 C 02 46 31.291 -01 55 49.43 U F51
2021-11-28 05:03:04 C 22 17 18.549 -00 08 29.33 U F51
2021-11-28 05:21:09 C 22 17 23.694 -00 08 35.27 U F51
2021-11-28 05:39:17 C 22 17 28.875 -00 08 41.16 U F51
2021-11-28 05:57:17 C 22 17 33.995 -00 08 47.11 U F51
2025-01-03 09:58:12 C 06 44 05.712 -15 28 33.24 X F52
2025-01-03 10:29:44 C 06 44 02.690 -15 28 38.30 X F52
2025-01-03 10:45:30 C 06 44 01.190 -15 28 40.57 X F52
2025-01-20 08:23:49 C 06 10 25.352 -14 56 21.96 X F51
2025-01-20 08:36:02 C 06 10 24.492 -14 56 18.58 X F51
2025-01-20 08:48:28 C 06 10 23.569 -14 56 15.09 X F51