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 15:32:08 V 19 09 15.78 -12 49 08.0 13.2 V 247
2021-06-20 15:32:08 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:32:39 V 19 09 15.66 -12 49 14.8 13.3 V 247
2021-06-20 15:32:39 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:33:01 C 19 09 15.50 -12 49 19.8 – q Q21
2021-06-20 15:33:11 V 19 09 15.56 -12 49 20.9 13.3 V 247
2021-06-20 15:33:11 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:33:43 V 19 09 15.49 -12 49 28.6 13.3 V 247
2021-06-20 15:33:43 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:34:17 V 19 09 15.28 -12 49 36.1 13.3 V 247
2021-06-20 15:34:17 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:34:50 V 19 09 15.25 -12 49 44.6 13.3 V 247
2021-06-20 15:34:50 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:35:22 V 19 09 15.09 -12 49 50.2 13.4 V 247
2021-06-20 15:35:22 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:35:54 V 19 09 15.02 -12 49 56.3 13.4 V 247
2021-06-20 15:35:54 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:36:26 V 19 09 14.89 -12 50 05.1 13.3 V 247
2021-06-20 15:36:26 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:36:57 V 19 09 14.75 -12 50 10.7 13.3 V 247
2021-06-20 15:36:57 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:37:29 V 19 09 14.60 -12 50 18.0 13.4 V 247
2021-06-20 15:37:29 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:38:01 V 19 09 14.48 -12 50 24.5 13.2 V 247
2021-06-20 15:38:01 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:38:33 V 19 09 14.41 -12 50 31.6 13.3 V 247
2021-06-20 15:38:33 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:39:04 V 19 09 14.30 -12 50 37.8 13.3 V 247
2021-06-20 15:39:04 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:39:36 V 19 09 14.21 -12 50 45.2 13.5 V 247
2021-06-20 15:39:36 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:43:07 C 19 09 13.29 -12 51 31.1 – q Q21
2021-06-20 15:45:21 V 19 09 12.90 -12 51 58.9 13.6 V 247
2021-06-20 15:45:21 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:45:53 V 19 09 12.76 -12 52 07.1 13.4 V 247
2021-06-20 15:45:53 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:46:25 V 19 09 12.66 -12 52 13.5 13.4 V 247
2021-06-20 15:46:25 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:46:57 V 19 09 12.53 -12 52 20.1 13.2 V 247
2021-06-20 15:46:57 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:47:28 V 19 09 12.41 -12 52 26.9 13.7 V 247
2021-06-20 15:47:28 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:48:00 V 19 09 12.30 -12 52 34.5 13.3 V 247
2021-06-20 15:48:00 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:48:32 V 19 09 12.21 -12 52 40.9 13.4 V 247
2021-06-20 15:48:32 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:49:04 V 19 09 12.06 -12 52 47.0 13.3 V 247
2021-06-20 15:49:04 v 1 138.70718 +36.35424 – – 247
2021-06-20 15:49:35 V 19 09 11.97 -12 52 54.3 13.4 V 247
2021-06-20 15:49:35 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)