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 14:26:50 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:27:21 V 19 25 12.12 +06 30 53.5 13.7 V 247
2021-06-17 14:27:21 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:28:25 V 19 25 11.86 +06 30 34.1 13.9 V 247
2021-06-17 14:28:25 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:28:57 V 19 25 11.69 +06 30 24.0 14.6 V 247
2021-06-17 14:28:57 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:29:29 V 19 25 11.57 +06 30 15.3 14.1 V 247
2021-06-17 14:29:29 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:30:00 V 19 25 11.40 +06 30 05.8 13.7 V 247
2021-06-17 14:30:00 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:30:32 V 19 25 11.20 +06 29 54.1 13.9 V 247
2021-06-17 14:30:32 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:31:04 V 19 25 11.11 +06 29 45.8 14.5 V 247
2021-06-17 14:31:04 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:31:36 V 19 25 10.94 +06 29 35.1 13.8 V 247
2021-06-17 14:31:36 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:32:39 V 19 25 10.62 +06 29 15.1 13.6 V 247
2021-06-17 14:32:39 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:33:11 V 19 25 10.50 +06 29 05.9 13.6 V 247
2021-06-17 14:33:11 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:33:43 V 19 25 10.35 +06 28 56.9 13.6 V 247
2021-06-17 14:33:43 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:34:14 V 19 25 10.18 +06 28 45.7 13.6 V 247
2021-06-17 14:34:14 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:35:50 V 19 25 09.71 +06 28 16.6 13.7 V 247
2021-06-17 14:35:50 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:36:22 V 19 25 09.59 +06 28 07.2 13.4 V 247
2021-06-17 14:36:22 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:36:53 V 19 25 09.43 +06 27 57.4 13.4 V 247
2021-06-17 14:36:53 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:37:25 V 19 25 09.31 +06 27 47.8 13.7 V 247
2021-06-17 14:37:25 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:37:57 V 19 25 09.11 +06 27 37.4 13.8 V 247
2021-06-17 14:37:57 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:38:29 V 19 25 08.97 +06 27 28.2 13.9 V 247
2021-06-17 14:38:29 v 1 140.20198 +36.17830 – – 247
2021-06-17 14:39:00 V 19 25 08.82 +06 27 18.6 13.7 V 247
2021-06-17 14:39:00 v 1 140.20198 +36.17830 – – 247
2021-06-17 15:11:00 V 19 24 59.64 +06 17 25.5 13.9 V 247
2021-06-17 15:11:00 v 1 140.20198 +36.17830 – – 247
2021-06-17 15:11:32 V 19 24 59.43 +06 17 14.6 14.1 V 247
2021-06-17 15:11:32 v 1 140.20198 +36.17830 – – 247
2021-06-17 15:12:04 V 19 24 59.31 +06 17 04.9 13.7 V 247
2021-06-17 15:12:04 v 1 140.20198 +36.17830 – – 247
2021-06-17 15:12:35 V 19 24 59.17 +06 16 54.9 13.2 V 247
2021-06-17 15:12:35 v 1 140.20198 +36.17830 – – 247
2021-06-17 15:13:39 V 19 24 58.87 +06 16 36.1 13.5 V 247
2021-06-17 15:13:39 v 1 140.20198 +36.17830 – – 247
2021-06-17 15:14:11 V 19 24 58.73 +06 16 26.5 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)