1998 WA2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5889663129 ± 1.87e-07
Semi-major axis (a)2.6882470393 AU ± 3.50e-09
Inclination (i)22.39917797° ± 2.68e-05
Long. of Asc. Node (Ω)234.04104389° ± 6.88e-06
Arg. of Perihelion (ω)126.57565968° ± 5.75e-05
Mean Anomaly (M)61.96786207° ± 1.05e-05
Mean Motion (n)0.2236189026°/day ± 4.37e-10
Perihelion dist (q)1.10496009 AU ± 5.03e-07
Aphelion dist (Q)4.27153399 AU ± 5.03e-07
Orbital Period4.40761614 yr ± 8.61e-09
Physical Parameters
H (abs. magnitude)19.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.372″
Uncertainty0
Orbit TypeAmor
MOID0.230579 AU
Observations Used169
Oppositions18
Arc Total1998-2021
First Observation Used1998-11-16
Last Observation Used2021-01-07
Observations (180)
Date Type RA Dec Mag Band Observatory
1998-11-16 11:24:08 C 03 43 21.22 +19 31 54.5 o 566
1998-11-16 11:39:18 C 03 43 21.22 +19 31 03.6 o 566
1998-11-16 11:54:17 C 03 43 21.32 +19 30 14.5 o 566
1998-11-18 06:12:50 C 03 43 29.77 +17 14 59.6 17.8 a 704
1998-11-18 07:17:07 C 03 43 29.43 +17 11 42.2 18.3 a 704
1998-11-18 08:21:09 C 03 43 29.10 +17 08 24.4 18.7 a 704
1998-11-18 09:25:59 C 03 43 28.80 +17 05 07.1 17.9 a 704
1998-11-18 10:30:01 C 03 43 28.60 +17 01 48.6 18.9 a 704
1998-11-18 23:15:38 C 03 43 31.77 +16 23 17.7 046
1998-11-18 23:17:07 C 03 43 31.77 +16 23 13.5 046
1998-11-18 23:18:40 C 03 43 31.73 +16 23 08.5 046
1998-11-18 23:20:41 C 03 43 31.74 +16 23 02.8 046
1998-11-19 04:14:38 C 03 43 33.64 +16 08 38.0 17.9 a 704
1998-11-19 04:46:11 C 03 43 33.51 +16 07 03.8 18.5 a 704
1998-11-19 05:17:42 C 03 43 33.40 +16 05 32.8 18.9 a 704
1998-11-19 05:49:18 C 03 43 33.32 +16 04 01.1 18.6 a 704
1998-11-19 06:20:54 C 03 43 33.18 +16 02 28.1 18.4 a 704
1998-11-19 12:33:38 C 03 43 34.61 +15 44 47.2 b 426
1998-11-19 12:38:32 C 03 43 34.55 +15 44 33.2 b 426
1998-11-19 12:44:28 C 03 43 34.49 +15 44 15.9 b 426
1998-11-19 19:16:07 C 03 43 35.51 +15 24 50.8 557
1998-11-19 19:17:57 C 03 43 35.53 +15 24 46.1 557
1998-11-19 19:19:49 C 03 43 35.51 +15 24 40.2 557
1998-11-19 22:06:48 C 03 43 35.21 +15 16 45.7 c 106
1998-11-19 22:33:19 C 03 43 35.16 +15 15 31.7 z 587
1998-11-19 22:38:29 C 03 43 35.15 +15 15 16.8 z 587
1998-11-19 22:44:16 C 03 43 35.03 +15 14 59.7 c 106
1998-11-19 23:10:19 C 03 43 34.93 +15 13 46.2 c 106
1998-11-19 23:20:10 C 03 43 34.84 +15 13 17.9 c 106
1998-11-20 02:06:08 C 03 43 34.40 +15 05 26.3 118
1998-11-20 02:08:48 C 03 43 34.41 +15 05 18.7 118
1998-11-20 02:30:38 C 03 43 34.37 +15 04 16.8 118
1998-11-20 03:49:14 C 03 43 36.78 +15 00 41.3 18.2 a 704
1998-11-20 04:04:49 C 03 43 36.71 +14 59 57.6 18.5 a 704
1998-11-23 15:04:30 C 03 43 45.45 +11 24 59.9 360
1998-11-23 15:09:00 C 03 43 45.44 +11 24 49.0 360
1998-11-23 15:12:29 C 03 43 45.41 +11 24 41.0 360
1998-11-23 23:01:00 C 03 43 46.47 +11 06 12.1 557
1998-11-23 23:03:21 C 03 43 46.49 +11 06 07.2 557
1998-11-23 23:05:41 C 03 43 46.50 +11 06 01.9 557
1998-11-26 13:16:28 C 03 43 56.40 +08 50 34.8 z 402
1998-11-26 13:18:28 C 03 43 56.40 +08 50 30.9 z 402
1998-11-26 13:20:28 C 03 43 56.42 +08 50 26.8 z 402
1998-11-28 13:59:53 C 03 44 05.92 +07 16 52.9 z 402
1998-11-28 14:01:53 C 03 44 05.97 +07 16 47.1 z 402
1998-11-28 14:03:53 C 03 44 05.92 +07 16 45.6 z 402
2020-10-20 10:37:37 C 03 28 31.50 +60 34 59.8 V T08
2020-10-20 10:50:15 C 03 28 32.50 +60 34 12.3 V T08
2020-10-20 11:05:36 C 03 28 33.72 +60 33 14.1 V T08
2020-10-22 10:54:52 C 03 32 42.37 +57 26 29.0 V T05