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 10:42:33 V 18 43 34.26 -36 59 43.4 14.7 V 247
2021-06-28 10:42:33 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:43:05 V 18 43 34.20 -36 59 44.9 14.8 V 247
2021-06-28 10:43:05 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:43:36 V 18 43 34.13 -36 59 48.1 14.3 V 247
2021-06-28 10:43:36 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:44:08 V 18 43 34.08 -36 59 50.6 14.0 V 247
2021-06-28 10:44:08 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:44:40 V 18 43 33.98 -36 59 52.6 14.3 V 247
2021-06-28 10:44:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:45:12 V 18 43 33.92 -36 59 55.2 14.0 V 247
2021-06-28 10:45:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:45:43 V 18 43 33.84 -36 59 57.4 14.0 V 247
2021-06-28 10:45:43 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:46:15 V 18 43 33.76 -36 59 59.7 13.8 V 247
2021-06-28 10:46:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:46:47 V 18 43 33.68 -37 00 02.1 13.8 V 247
2021-06-28 10:46:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:47:19 V 18 43 33.65 -37 00 04.6 13.9 V 247
2021-06-28 10:47:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:47:51 V 18 43 33.57 -37 00 06.1 13.8 V 247
2021-06-28 10:47:51 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:52:40 V 18 43 32.97 -37 00 26.3 15.2 V 247
2021-06-28 10:52:40 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:53:12 V 18 43 32.91 -37 00 28.8 15.3 V 247
2021-06-28 10:53:12 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:53:43 V 18 43 32.83 -37 00 31.1 15.2 V 247
2021-06-28 10:53:43 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:54:15 V 18 43 32.77 -37 00 33.4 15.2 V 247
2021-06-28 10:54:15 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:54:47 V 18 43 32.71 -37 00 35.4 14.8 V 247
2021-06-28 10:54:47 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:55:19 V 18 43 32.65 -37 00 37.6 14.5 V 247
2021-06-28 10:55:19 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:55:51 V 18 43 32.58 -37 00 40.0 14.4 V 247
2021-06-28 10:55:51 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:56:22 V 18 43 32.53 -37 00 42.4 14.5 V 247
2021-06-28 10:56:22 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:56:54 V 18 43 32.45 -37 00 44.8 14.4 V 247
2021-06-28 10:56:54 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:57:26 V 18 43 32.36 -37 00 47.1 14.7 V 247
2021-06-28 10:57:26 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:57:58 V 18 43 32.31 -37 00 49.0 14.6 V 247
2021-06-28 10:57:58 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:58:29 V 18 43 32.24 -37 00 51.2 14.6 V 247
2021-06-28 10:58:29 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:59:01 V 18 43 32.19 -37 00 53.5 14.5 V 247
2021-06-28 10:59:01 v 1 201.91295 +21.37121 – – 247
2021-06-28 10:59:33 V 18 43 32.10 -37 00 55.7 15.0 V 247
2021-06-28 10:59:33 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)