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
2021-06-17 13:22:16 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:22:48 V 19 25 30.45 +06 50 54.0 13.8 V 247
2021-06-17 13:22:48 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:23:19 V 19 25 30.27 +06 50 43.6 14.3 V 247
2021-06-17 13:23:19 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:23:51 V 19 25 30.12 +06 50 33.0 13.9 V 247
2021-06-17 13:23:51 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:24:23 V 19 25 29.97 +06 50 25.3 13.3 V 247
2021-06-17 13:24:23 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:25:26 V 19 25 29.65 +06 50 04.7 13.8 V 247
2021-06-17 13:25:26 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:25:58 V 19 25 29.53 +06 49 54.6 14.7 V 247
2021-06-17 13:25:58 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:26:30 V 19 25 29.38 +06 49 43.8 13.5 V 247
2021-06-17 13:26:30 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:27:02 V 19 25 29.25 +06 49 35.0 13.4 V 247
2021-06-17 13:27:02 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:28:05 V 19 25 28.97 +06 49 15.3 14.0 V 247
2021-06-17 13:28:05 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:28:37 V 19 25 28.81 +06 49 05.2 13.8 V 247
2021-06-17 13:28:37 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:29:09 V 19 25 28.60 +06 48 54.7 13.8 V 247
2021-06-17 13:29:09 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:29:40 V 19 25 28.48 +06 48 45.3 13.9 V 247
2021-06-17 13:29:40 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:30:12 V 19 25 28.36 +06 48 35.6 13.9 V 247
2021-06-17 13:30:12 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:30:44 V 19 25 28.18 +06 48 25.3 13.8 V 247
2021-06-17 13:30:44 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:31:16 V 19 25 28.06 +06 48 15.9 13.8 V 247
2021-06-17 13:31:16 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:31:48 V 19 25 27.93 +06 48 07.0 13.9 V 247
2021-06-17 13:31:48 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:32:19 V 19 25 27.77 +06 47 57.0 13.9 V 247
2021-06-17 13:32:19 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:32:51 V 19 25 27.60 +06 47 46.4 13.7 V 247
2021-06-17 13:32:51 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:33:23 V 19 25 27.46 +06 47 36.3 13.8 V 247
2021-06-17 13:33:23 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:33:55 V 19 25 27.33 +06 47 27.1 13.6 V 247
2021-06-17 13:33:55 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:34:26 V 19 25 27.21 +06 47 17.5 13.6 V 247
2021-06-17 13:34:26 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:34:58 V 19 25 27.02 +06 47 06.3 13.6 V 247
2021-06-17 13:34:58 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:35:30 V 19 25 26.86 +06 46 57.1 13.6 V 247
2021-06-17 13:35:30 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:36:02 V 19 25 26.74 +06 46 47.5 13.9 V 247
2021-06-17 13:36:02 v 1 140.20198 +36.17830 – – 247
2021-06-17 13:36:33 V 19 25 26.60 +06 46 38.8 13.8 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)