IAA RAS IAA SBSS Data Base

137062 (1998 WM)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3153271265 ± 2.06e-08
Semi-major axis (a)1.2245884699 AU ± 6.45e-10
Inclination (i)22.51507649° ± 2.94e-06
Long. of Asc. Node (Ω)45.62087748° ± 3.48e-06
Arg. of Perihelion (ω)172.58220265° ± 5.40e-06
Mean Anomaly (M)201.77357274° ± 6.50e-06
Mean Motion (n)0.7273225072°/day ± 5.75e-10
Perihelion dist (q)0.83844251 AU ± 2.52e-08
Aphelion dist (Q)1.61073443 AU ± 2.52e-08
Orbital Period1.35514338 yr ± 1.07e-09
Physical Parameters
H (abs. magnitude)16.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.591″
Uncertainty0
Orbit TypeApollo
MOID0.169083 AU
Observations Used4601
Gaia Obs Used10
Oppositions7
Arc Total1987-2015
First Observation Used1987-10-16
Last Observation Used2026-01-11
Observations (7442)
Date Type RA Dec Mag Band Observatory
2021-11-03 21:43:57 s 1 -149420.11 6 +239337.52 4130.0 – C57
2021-11-03 21:53:57 S 04 27 03.288 +28 48 11.56 – V C57
2021-11-03 21:53:57 s 1 -149621.11 4 +238760.77 9300.0 – C57
2021-11-03 22:03:57 S 04 27 02.165 +28 48 19.40 – V C57
2021-11-03 22:03:57 s 1 -149821.19 5 +238182.57 1050.0 – C57
2021-11-03 22:13:57 S 04 27 01.193 +28 48 24.52 – V C57
2021-11-03 22:13:57 s 1 -150020.35 4 +237602.92 9360.0 – C57
2021-11-03 22:23:57 S 04 27 00.254 +28 48 38.95 – V C57
2021-11-03 22:23:57 s 1 -150218.58 7 +237021.82 4220.0 – C57
2021-11-03 22:33:57 S 04 26 59.806 +28 48 47.02 – V C57
2021-11-03 22:33:57 s 1 -150415.88 9 +236439.26 5610.0 – C57
2021-11-03 22:43:57 S 04 26 58.469 +28 48 52.67 – V C57
2021-11-03 22:43:57 s 1 -150612.25 4 +235855.25 3520.0 – C57
2021-11-03 22:53:57 S 04 26 57.530 +28 49 03.72 – V C57
2021-11-03 22:53:57 s 1 -150807.68 0 +235269.78 7920.0 – C57
2021-11-03 23:03:57 S 04 26 56.645 +28 49 14.92 – V C57
2021-11-03 23:03:57 s 1 -151002.16 0 +234682.86 8810.0 – C57
2021-11-03 23:13:57 S 04 26 55.850 +28 49 17.98 – V C57
2021-11-03 23:13:57 s 1 -151195.68 9 +234094.47 6150.0 – C57
2021-11-03 23:23:57 S 04 26 54.607 +28 49 29.60 – V C57
2021-11-03 23:23:57 s 1 -151388.26 4 +233504.61 9940.0 – C57
2021-11-03 23:33:57 S 04 26 53.479 +28 49 36.52 – V C57
2021-11-03 23:33:57 s 1 -151579.87 9 +232913.30 150.0 – C57
2021-11-03 23:43:57 S 04 26 52.838 +28 49 48.90 – V C57
2021-11-03 23:43:57 s 1 -151770.52 9 +232320.51 6780.0 – C57
2021-11-03 23:53:57 S 04 26 51.679 +28 49 53.00 – V C57
2021-11-03 23:53:57 s 1 -151960.20 9 +231726.25 9790.0 – C57
2021-11-04 00:23:57 S 04 26 49.243 +28 50 20.54 – V C57
2021-11-04 00:23:57 s 1 -152523.38 2 +229934.64 6990.0 – C57
2021-11-04 00:33:57 S 04 26 48.319 +28 50 25.26 – V C57
2021-11-04 00:33:57 s 1 -152709.13 3 +229334.49 5380.0 – C57
2021-11-04 01:13:57 S 04 26 44.412 +28 51 06.62 – V C57
2021-11-04 01:13:57 s 1 -153442.13 6 +226919.04 1750.0 – C57
2021-11-04 02:03:57 S 04 26 39.703 +28 51 49.75 – V C57
2021-11-04 02:03:57 s 1 -154335.49 5 +223866.23 2060.0 – C57
2021-11-04 02:13:57 S 04 26 38.683 +28 51 53.42 – V C57
2021-11-04 02:13:57 s 1 -154511.06 0 +223251.18 2580.0 – C57
2021-11-04 02:23:57 S 04 26 37.594 +28 51 58.90 – V C57
2021-11-04 02:23:57 s 1 -154685.57 8 +222634.63 9200.0 – C57
2021-11-04 02:33:57 S 04 26 36.703 +28 52 09.19 – V C57
2021-11-04 02:33:57 s 1 -154859.04 2 +222016.58 1910.0 – C57
2021-11-04 02:43:57 S 04 26 35.714 +28 52 17.54 – V C57
2021-11-04 02:43:57 s 1 -155031.44 7 +221397.02 680.0 – C57
2021-11-04 02:53:57 S 04 26 34.908 +28 52 26.98 – V C57
2021-11-04 02:53:57 s 1 -155202.78 8 +220775.95 5500.0 – C57
2021-11-04 03:03:57 S 04 26 34.034 +28 52 38.32 – V C57
2021-11-04 03:03:57 s 1 -155373.05 8 +220153.38 6340.0 – C57
2021-11-04 03:13:57 S 04 26 32.791 +28 52 39.72 – V C57
2021-11-04 03:13:57 s 1 -155542.25 3 +219529.29 3190.0 – C57
2021-11-04 03:23:57 S 04 26 32.256 +28 52 54.26 – V C57