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
2021-06-19 18:58:54 C 19 13 22.62 -08 02 31.9 – q L68
2021-06-19 19:05:24 C 19 13 21.22 -08 04 07.6 – q L68
2021-06-19 19:07:19 C 19 13 20.81 -08 04 35.9 – q L68
2021-06-20 03:52:29 C 19 11 29.81 -10 10 10.8 – q Y00
2021-06-20 03:53:53 C 19 11 29.47 -10 10 29.8 – q Y00
2021-06-20 03:55:19 C 19 11 29.13 -10 10 49.8 – q Y00
2021-06-20 15:00:21 V 19 09 22.78 -12 42 13.0 13.4 V 247
2021-06-20 15:00:21 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:00:53 V 19 09 22.62 -12 42 20.1 13.2 V 247
2021-06-20 15:00:53 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:01:25 V 19 09 22.56 -12 42 26.0 13.6 V 247
2021-06-20 15:01:25 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:01:57 V 19 09 22.41 -12 42 34.9 13.3 V 247
2021-06-20 15:01:57 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:02:28 V 19 09 22.26 -12 42 41.0 13.2 V 247
2021-06-20 15:02:28 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:03:00 V 19 09 22.20 -12 42 46.4 13.2 V 247
2021-06-20 15:03:00 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:05:19 V 19 09 21.73 -12 43 16.9 13.0 V 247
2021-06-20 15:05:19 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:06:55 V 19 09 21.32 -12 43 39.0 13.9 V 247
2021-06-20 15:06:55 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:07:26 V 19 09 21.19 -12 43 46.1 13.6 V 247
2021-06-20 15:07:26 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:08:30 V 19 09 20.92 -12 44 00.4 12.9 V 247
2021-06-20 15:08:30 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:10:35 V 19 09 20.42 -12 44 28.3 12.4 V 247
2021-06-20 15:10:35 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:11:09 V 19 09 20.40 -12 44 33.9 13.1 V 247
2021-06-20 15:11:09 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:11:40 V 19 09 20.28 -12 44 40.2 13.8 V 247
2021-06-20 15:11:40 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:12:12 V 19 09 20.15 -12 44 47.6 14.1 V 247
2021-06-20 15:12:12 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:12:44 V 19 09 20.06 -12 44 55.1 13.7 V 247
2021-06-20 15:12:44 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:13:16 V 19 09 19.96 -12 45 00.1 13.6 V 247
2021-06-20 15:13:16 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:13:48 V 19 09 19.82 -12 45 08.8 13.5 V 247
2021-06-20 15:13:48 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:14:19 V 19 09 19.75 -12 45 14.4 13.7 V 247
2021-06-20 15:14:19 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:15:39 V 19 09 19.41 -12 45 32.4 13.3 V 247
2021-06-20 15:15:39 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:16:10 V 19 09 19.30 -12 45 40.1 13.4 V 247
2021-06-20 15:16:10 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:16:42 V 19 09 19.18 -12 45 46.5 13.3 V 247
2021-06-20 15:16:42 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:17:14 V 19 09 19.09 -12 45 52.5 13.2 V 247
2021-06-20 15:17:14 v 1 138.70718 +36.35424 – – 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)