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
2021-06-20 15:17:46 V 19 09 18.93 -12 46 00.2 13.4 V 247
2021-06-20 15:17:46 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:18:18 V 19 09 18.81 -12 46 07.8 13.2 V 247
2021-06-20 15:18:18 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:18:49 V 19 09 18.72 -12 46 14.1 13.3 V 247
2021-06-20 15:18:49 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:19:21 V 19 09 18.59 -12 46 20.7 13.4 V 247
2021-06-20 15:19:21 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:19:53 V 19 09 18.46 -12 46 27.7 13.3 V 247
2021-06-20 15:19:53 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:20:25 V 19 09 18.33 -12 46 35.0 13.3 V 247
2021-06-20 15:20:25 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:20:56 V 19 09 18.25 -12 46 41.1 13.3 V 247
2021-06-20 15:20:56 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:21:28 V 19 09 18.10 -12 46 49.0 13.3 V 247
2021-06-20 15:21:28 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:22:00 V 19 09 18.02 -12 46 55.0 13.4 V 247
2021-06-20 15:22:00 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:22:32 V 19 09 17.90 -12 47 02.2 13.3 V 247
2021-06-20 15:22:32 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:23:03 V 19 09 17.77 -12 47 09.2 13.4 V 247
2021-06-20 15:23:03 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:24:43 V 19 09 17.41 -12 47 32.7 13.4 V 247
2021-06-20 15:24:43 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:25:15 V 19 09 17.32 -12 47 38.7 13.0 V 247
2021-06-20 15:25:15 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:25:46 V 19 09 17.17 -12 47 44.6 12.7 V 247
2021-06-20 15:25:46 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:26:18 V 19 09 17.01 -12 47 53.3 12.7 V 247
2021-06-20 15:26:18 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:26:50 V 19 09 16.99 -12 47 58.6 13.0 V 247
2021-06-20 15:26:50 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:27:22 V 19 09 16.84 -12 48 05.8 13.4 V 247
2021-06-20 15:27:22 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:27:53 V 19 09 16.78 -12 48 12.3 13.7 V 247
2021-06-20 15:27:53 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:28:25 V 19 09 16.63 -12 48 19.8 13.5 V 247
2021-06-20 15:28:25 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:28:57 V 19 09 16.53 -12 48 27.3 13.4 V 247
2021-06-20 15:28:57 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:29:29 V 19 09 16.37 -12 48 33.0 13.3 V 247
2021-06-20 15:29:29 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:30:00 V 19 09 16.25 -12 48 40.6 13.4 V 247
2021-06-20 15:30:00 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:30:32 V 19 09 16.17 -12 48 47.1 13.4 V 247
2021-06-20 15:30:32 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:31:04 V 19 09 16.03 -12 48 54.0 13.4 V 247
2021-06-20 15:31:04 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:31:36 V 19 09 15.92 -12 49 01.1 13.3 V 247
2021-06-20 15:31:36 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)