422637 (1985 WA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6093455206 ± 9.18e-08
Semi-major axis (a)2.8264048782 AU ± 3.91e-08
Inclination (i)9.82718347° ± 1.03e-05
Long. of Asc. Node (Ω)43.37754775° ± 5.76e-05
Arg. of Perihelion (ω)351.51883847° ± 6.45e-05
Mean Anomaly (M)137.32725908° ± 3.07e-05
Mean Motion (n)0.2074248168°/day ± 4.31e-09
Perihelion dist (q)1.10414773 AU ± 2.60e-07
Aphelion dist (Q)4.54866203 AU ± 2.67e-07
Orbital Period4.75172787 yr ± 9.87e-08
Physical Parameters
H (abs. magnitude)18.14
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.403″
Uncertainty0
Orbit TypeAmor
MOID0.111861 AU
Observations Used74
Oppositions24
Arc Total1985-2015
First Observation Used1985-10-14
Last Observation Used2015-02-18
Observations (75)
Date Type RA Dec Mag Band Observatory
2009-11-18 11:45:23 C 09 08 08.98 +30 14 02.0 r 703
2009-11-18 11:55:54 C 09 08 09.60 +30 14 07.0 r 703
2009-12-16 08:27:51 C 09 25 08.94 +35 49 59.5 r 703
2009-12-16 08:35:19 C 09 25 08.83 +35 50 03.1 r 703
2009-12-16 08:42:40 C 09 25 08.65 +35 50 06.5 r 703
2009-12-16 08:50:11 C 09 25 08.50 +35 50 11.3 r 703
2009-12-29 08:51:31 C 09 13 46.54 +38 29 38.7 o H21
2009-12-29 08:55:33 C 09 13 46.29 +38 29 40.5 o H21
2009-12-29 08:59:34 C 09 13 46.07 +38 29 42.3 o H21
2009-12-29 09:03:31 C 09 13 45.85 +38 29 44.0 o H21
2010-01-11 06:58:43 C 08 53 49.16 +40 17 35.9 r 735
2010-01-11 07:22:22 C 08 53 47.35 +40 17 41.5 r 735
2010-01-11 07:55:22 C 08 53 44.88 +40 17 48.8 r 735
2015-01-15 11:47:19 C 11 23 07.328 +19 48 37.21 L F51
2015-01-15 12:05:55 C 11 23 06.877 +19 48 42.93 L F51
2015-01-15 12:24:27 C 11 23 06.452 +19 48 48.69 L F51
2015-01-15 12:43:01 C 11 23 06.039 +19 48 54.33 L F51
2015-01-17 11:01:50 C 11 22 01.820 +20 03 13.09 L F51
2015-01-17 11:21:55 C 11 22 01.303 +20 03 19.15 L F51
2015-01-17 11:41:57 C 11 22 00.777 +20 03 25.55 L F51
2015-01-17 12:01:57 C 11 22 00.280 +20 03 31.86 L F51
2015-02-18 09:00:34 C 10 48 41.43 +24 00 41.5 q G96
2015-02-18 09:07:58 C 10 48 41.01 +24 00 43.5 q G96
2015-02-18 09:15:21 C 10 48 40.63 +24 00 45.0 q G96
2015-02-18 09:22:43 C 10 48 40.18 +24 00 46.8 q G96