IAA RAS IAA Minor Planet Database

450263 (2003 WD158)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4091625420 ± 1.52e-08
Semi-major axis (a)1.4263477944 AU ± 1.46e-09
Inclination (i)16.72793841° ± 7.91e-07
Long. of Asc. Node (Ω)92.19813289° ± 5.62e-07
Arg. of Perihelion (ω)102.36816257° ± 3.09e-06
Mean Anomaly (M)248.55192838° ± 1.20e-06
Mean Motion (n)0.5785942639°/day ± 8.91e-10
Perihelion dist (q)0.84273971 AU ± 2.17e-08
Aphelion dist (Q)2.00995588 AU ± 2.18e-08
Orbital Period1.70348437 yr ± 2.62e-09
Physical Parameters
H (abs. magnitude)18.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.544″
Uncertainty0
Orbit TypeApollo
MOID0.046080 AU
Observations Used5311
Radar Obs Used4
Oppositions7
Arc Total2003-2026
First Observation Used2003-11-30
Last Observation Used2026-01-22
Observations (10017)
Date Type RA Dec Mag Band Observatory
2021-06-29 10:10:02 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:10:42 V 18 41 19.66 -38 33 09.4 14.8 V 247
2021-06-29 10:10:42 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:11:22 V 18 41 19.55 -38 33 11.9 14.6 V 247
2021-06-29 10:11:22 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:12:01 V 18 41 19.50 -38 33 14.7 15.0 V 247
2021-06-29 10:12:01 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:12:41 V 18 41 19.43 -38 33 17.4 14.7 V 247
2021-06-29 10:12:41 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:13:21 V 18 41 19.35 -38 33 20.1 15.0 V 247
2021-06-29 10:13:21 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:14:00 V 18 41 19.29 -38 33 22.2 15.1 V 247
2021-06-29 10:14:00 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:14:40 V 18 41 19.20 -38 33 24.8 14.8 V 247
2021-06-29 10:14:40 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:15:20 V 18 41 19.12 -38 33 27.3 14.6 V 247
2021-06-29 10:15:20 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:16:00 V 18 41 19.05 -38 33 29.7 14.8 V 247
2021-06-29 10:16:00 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:16:39 V 18 41 18.98 -38 33 32.4 14.9 V 247
2021-06-29 10:16:39 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:17:19 V 18 41 18.90 -38 33 34.7 14.6 V 247
2021-06-29 10:17:19 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:17:59 V 18 41 18.83 -38 33 37.5 15.0 V 247
2021-06-29 10:17:59 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:18:38 V 18 41 18.78 -38 33 40.6 14.9 V 247
2021-06-29 10:18:38 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:19:18 V 18 41 18.67 -38 33 42.1 15.2 V 247
2021-06-29 10:19:18 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:19:58 V 18 41 18.56 -38 33 44.2 15.4 V 247
2021-06-29 10:19:58 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:20:38 V 18 41 18.48 -38 33 46.8 15.3 V 247
2021-06-29 10:20:38 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:21:17 V 18 41 18.41 -38 33 49.2 15.4 V 247
2021-06-29 10:21:17 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:21:57 V 18 41 18.32 -38 33 51.8 15.4 V 247
2021-06-29 10:21:57 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:22:37 V 18 41 18.25 -38 33 54.3 15.4 V 247
2021-06-29 10:22:37 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:23:16 V 18 41 18.18 -38 33 56.9 14.9 V 247
2021-06-29 10:23:16 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:23:56 V 18 41 18.10 -38 33 59.2 14.6 V 247
2021-06-29 10:23:56 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:24:36 V 18 41 18.01 -38 34 01.5 14.6 V 247
2021-06-29 10:24:36 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:25:16 V 18 41 17.94 -38 34 04.1 14.5 V 247
2021-06-29 10:25:16 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:25:55 V 18 41 17.85 -38 34 06.5 14.3 V 247
2021-06-29 10:25:55 v 1 201.91295 +21.37100 – – 247
2021-06-29 10:26:35 V 18 41 17.78 -38 34 09.2 14.3 V 247
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-06-12 04:20:00 330282.96 0.04 Hz 8560 -14 -14
2021-06-12 04:40:00 57906827.55 1 us 8560 -14 -14
2021-06-12 14:10:00 270117.786 0.04 Hz 8560 -14 -14
2021-06-12 15:10:00 56587103.74 0.125 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)