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 12:33:33 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:34:05 V 19 25 44.00 +07 06 00.7 13.7 V 247
2021-06-17 12:34:05 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:34:37 V 19 25 43.81 +07 05 50.6 13.8 V 247
2021-06-17 12:34:37 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:35:08 V 19 25 43.72 +07 05 41.1 13.9 V 247
2021-06-17 12:35:08 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:36:44 V 19 25 43.23 +07 05 11.5 13.2 V 247
2021-06-17 12:36:44 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:37:15 V 19 25 43.19 +07 05 01.5 13.1 V 247
2021-06-17 12:37:15 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:37:47 V 19 25 43.00 +07 04 52.3 13.7 V 247
2021-06-17 12:37:47 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:38:51 V 19 25 42.73 +07 04 30.8 14.0 V 247
2021-06-17 12:38:51 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:39:23 V 19 25 42.54 +07 04 21.7 14.5 V 247
2021-06-17 12:39:23 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:39:54 V 19 25 42.41 +07 04 13.0 14.0 V 247
2021-06-17 12:39:54 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:40:26 V 19 25 42.23 +07 04 02.0 13.9 V 247
2021-06-17 12:40:26 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:40:58 V 19 25 42.10 +07 03 52.1 14.6 V 247
2021-06-17 12:40:58 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:43:37 V 19 25 41.37 +07 03 03.2 15.6 V 247
2021-06-17 12:43:37 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:44:08 V 19 25 41.20 +07 02 52.1 13.8 V 247
2021-06-17 12:44:08 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:44:40 V 19 25 41.04 +07 02 43.2 13.8 V 247
2021-06-17 12:44:40 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:45:12 V 19 25 40.99 +07 02 33.5 14.1 V 247
2021-06-17 12:45:12 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:45:44 V 19 25 40.75 +07 02 22.7 13.8 V 247
2021-06-17 12:45:44 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:46:16 V 19 25 40.60 +07 02 12.8 13.3 V 247
2021-06-17 12:46:16 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:47:19 V 19 25 40.34 +07 01 52.2 13.4 V 247
2021-06-17 12:47:19 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:47:51 V 19 25 40.23 +07 01 44.5 13.5 V 247
2021-06-17 12:47:51 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:48:23 V 19 25 40.08 +07 01 34.0 13.5 V 247
2021-06-17 12:48:23 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:48:54 V 19 25 39.85 +07 01 23.8 13.6 V 247
2021-06-17 12:48:54 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:49:26 V 19 25 39.76 +07 01 15.7 13.7 V 247
2021-06-17 12:49:26 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:49:58 V 19 25 39.54 +07 01 03.2 14.1 V 247
2021-06-17 12:49:58 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:50:30 V 19 25 39.47 +07 00 54.9 13.9 V 247
2021-06-17 12:50:30 v 1 140.20198 +36.17830 – – 247
2021-06-17 12:51:01 V 19 25 39.37 +07 00 44.9 14.0 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)