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
2021-06-30 08:33:09 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:33:49 V 18 39 21.51 -39 51 52.7 15.6 V 247
2021-06-30 08:33:49 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:34:28 V 18 39 21.44 -39 51 54.7 15.4 V 247
2021-06-30 08:34:28 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:35:08 V 18 39 21.33 -39 51 57.5 16.0 V 247
2021-06-30 08:35:08 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:35:48 V 18 39 21.30 -39 51 59.3 15.4 V 247
2021-06-30 08:35:48 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:36:27 V 18 39 21.22 -39 52 01.4 15.0 V 247
2021-06-30 08:36:27 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:37:07 V 18 39 21.15 -39 52 04.1 15.1 V 247
2021-06-30 08:37:07 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:37:47 V 18 39 21.08 -39 52 06.3 15.1 V 247
2021-06-30 08:37:47 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:38:27 V 18 39 21.03 -39 52 08.3 14.7 V 247
2021-06-30 08:38:27 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:39:06 V 18 39 20.97 -39 52 10.3 15.1 V 247
2021-06-30 08:39:06 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:39:46 V 18 39 20.93 -39 52 12.6 15.0 V 247
2021-06-30 08:39:46 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:42:33 V 18 39 20.60 -39 52 21.8 14.9 V 247
2021-06-30 08:42:33 v 1 201.91295 +21.37122 – – 247
2021-06-30 08:43:12 V 18 39 20.50 -39 52 24.5 14.8 V 247
2021-06-30 08:43:12 v 1 201.91295 +21.37122 – – 247
2021-06-30 17:17:21 V 18 38 38.09 -40 19 27.6 16.4 V 247
2021-06-30 17:17:21 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:17:53 V 18 38 37.97 -40 19 29.5 16.0 V 247
2021-06-30 17:17:53 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:18:24 V 18 38 37.84 -40 19 31.6 15.8 V 247
2021-06-30 17:18:24 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:18:56 V 18 38 37.83 -40 19 32.8 15.9 V 247
2021-06-30 17:18:56 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:19:28 V 18 38 37.78 -40 19 34.9 15.8 V 247
2021-06-30 17:19:28 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:20:00 V 18 38 37.80 -40 19 36.5 15.3 V 247
2021-06-30 17:20:00 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:20:32 V 18 38 37.70 -40 19 38.2 15.6 V 247
2021-06-30 17:20:32 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:21:03 V 18 38 37.64 -40 19 39.2 15.5 V 247
2021-06-30 17:21:03 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:21:35 V 18 38 37.62 -40 19 41.0 15.6 V 247
2021-06-30 17:21:35 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:22:07 V 18 38 37.58 -40 19 43.2 15.6 V 247
2021-06-30 17:22:07 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:22:39 V 18 38 37.60 -40 19 45.0 15.7 V 247
2021-06-30 17:22:39 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:23:10 V 18 38 37.47 -40 19 46.6 15.4 V 247
2021-06-30 17:23:10 v 1 055.57620 -21.19285 – – 247
2021-06-30 17:23:42 V 18 38 37.49 -40 19 48.3 15.6 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)