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
2020-12-02 12:20:00 C 03 43 33.404 +04 28 01.42 U F51
2020-12-02 12:57:50 C 03 43 33.391 +04 27 10.20 U F51
2020-12-02 13:16:45 C 03 43 33.387 +04 26 44.61 U F51
2020-12-03 01:58:30 C 03 43 37.51 +04 09 50.3 V W34
2020-12-03 02:19:30 C 03 43 37.53 +04 09 22.2 V W34
2020-12-03 02:39:18 C 03 43 37.52 +04 08 56.3 V W34
2020-12-05 09:28:03 C 03 43 51.137 +03 02 06.92 U F52
2020-12-05 09:46:02 C 03 43 51.125 +03 01 46.63 U F52
2020-12-05 10:03:54 C 03 43 51.138 +03 01 26.11 U F52
2020-12-05 10:21:44 C 03 43 51.145 +03 01 05.89 U F52
2020-12-06 08:03:08 C 03 43 58.27 +02 37 03.5 V G96
2020-12-06 08:19:58 C 03 43 58.30 +02 36 46.6 V G96
2020-12-06 08:27:22 C 03 43 58.34 +02 36 37.5 V G96
2020-12-06 08:34:48 C 03 43 58.33 +02 36 29.4 V G96
2020-12-07 07:57:17 C 03 44 07.43 +02 12 08.8 V G96
2020-12-07 08:04:41 C 03 44 07.44 +02 12 01.0 V G96
2020-12-07 08:12:05 C 03 44 07.46 +02 11 53.6 V G96
2020-12-07 08:19:30 C 03 44 07.49 +02 11 46.3 V G96
2020-12-08 08:45:09 C 03 44 18.662 +01 47 56.98 U F51
2020-12-08 09:01:18 C 03 44 18.711 +01 47 41.72 U F51
2020-12-08 09:17:31 C 03 44 18.759 +01 47 26.43 U F51
2020-12-11 07:26:43 C 03 44 56.614 +00 47 10.14 U F52
2020-12-11 07:43:23 C 03 44 56.703 +00 46 57.09 U F52
2020-12-11 08:16:55 C 03 44 56.904 +00 46 31.15 U F52
2021-01-05 07:45:22 C 03 57 41.567 -02 16 07.52 U F51
2021-01-05 08:02:04 C 03 57 42.051 -02 16 07.51 U F51
2021-01-05 08:18:45 C 03 57 42.527 -02 16 07.27 U F51
2021-01-05 08:35:26 C 03 57 43.006 -02 16 07.01 U F51
2021-01-07 08:31:48 C 03 59 15.918 -02 14 47.69 U F51
2021-01-07 08:47:49 C 03 59 16.410 -02 14 47.00 U F51