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
2021-06-28 09:54:40 V 18 43 40.24 -36 56 19.5 14.5 V 247
2021-06-28 09:54:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:55:12 V 18 43 40.19 -36 56 21.8 14.6 V 247
2021-06-28 09:55:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:55:44 V 18 43 40.12 -36 56 24.0 14.6 V 247
2021-06-28 09:55:44 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:56:15 V 18 43 40.09 -36 56 26.0 14.6 V 247
2021-06-28 09:56:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:56:47 V 18 43 39.99 -36 56 28.7 14.6 V 247
2021-06-28 09:56:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:57:19 V 18 43 39.95 -36 56 30.7 14.4 V 247
2021-06-28 09:57:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:57:51 V 18 43 39.88 -36 56 32.9 14.6 V 247
2021-06-28 09:57:51 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:58:22 V 18 43 39.81 -36 56 35.1 14.4 V 247
2021-06-28 09:58:22 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:58:54 V 18 43 39.73 -36 56 37.5 14.5 V 247
2021-06-28 09:58:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:59:26 V 18 43 39.65 -36 56 40.3 14.3 V 247
2021-06-28 09:59:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 09:59:58 V 18 43 39.59 -36 56 42.3 14.5 V 247
2021-06-28 09:59:58 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:08:40 V 18 43 38.51 -36 57 19.2 15.4 V 247
2021-06-28 10:08:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:09:11 V 18 43 38.44 -36 57 21.6 14.8 V 247
2021-06-28 10:09:11 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:09:43 V 18 43 38.34 -36 57 23.8 14.7 V 247
2021-06-28 10:09:43 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:10:15 V 18 43 38.33 -36 57 26.1 14.2 V 247
2021-06-28 10:10:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:10:47 V 18 43 38.26 -36 57 28.6 14.4 V 247
2021-06-28 10:10:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:11:18 V 18 43 38.19 -36 57 30.7 14.1 V 247
2021-06-28 10:11:18 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:11:50 V 18 43 38.12 -36 57 33.1 14.1 V 247
2021-06-28 10:11:50 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:12:22 V 18 43 38.04 -36 57 35.3 14.2 V 247
2021-06-28 10:12:22 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:12:54 V 18 43 37.96 -36 57 37.5 14.4 V 247
2021-06-28 10:12:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:13:26 V 18 43 37.90 -36 57 39.7 14.4 V 247
2021-06-28 10:13:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:13:57 V 18 43 37.88 -36 57 42.0 14.2 V 247
2021-06-28 10:13:57 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:14:29 V 18 43 37.79 -36 57 44.4 14.4 V 247
2021-06-28 10:14:29 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:15:01 V 18 43 37.72 -36 57 46.4 14.7 V 247
2021-06-28 10:15:01 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:15:33 V 18 43 37.66 -36 57 49.0 14.4 V 247
2021-06-28 10:15:33 v 1 201.91295 +21.37121 – – 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)