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
2021-06-16 23:23:18 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:23:49 V 19 29 06.28 +11 16 55.7 14.2 V 247
2021-06-16 23:23:49 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:24:53 V 19 29 05.87 +11 16 35.4 13.5 V 247
2021-06-16 23:24:53 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:25:57 V 19 29 05.63 +11 16 14.3 13.8 V 247
2021-06-16 23:25:57 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:26:28 V 19 29 05.44 +11 16 04.6 14.2 V 247
2021-06-16 23:26:28 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:27:00 V 19 29 05.26 +11 15 53.4 14.3 V 247
2021-06-16 23:27:00 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:27:32 V 19 29 05.11 +11 15 44.4 13.9 V 247
2021-06-16 23:27:32 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:28:04 V 19 29 04.92 +11 15 32.4 13.6 V 247
2021-06-16 23:28:04 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:28:35 V 19 29 04.79 +11 15 24.0 13.7 V 247
2021-06-16 23:28:35 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:30:11 V 19 29 04.40 +11 14 51.1 13.7 V 247
2021-06-16 23:30:11 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:30:42 V 19 29 04.24 +11 14 41.5 13.7 V 247
2021-06-16 23:30:42 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:31:14 V 19 29 04.01 +11 14 32.4 13.9 V 247
2021-06-16 23:31:14 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:39:08 V 19 29 01.67 +11 11 58.8 13.7 V 247
2021-06-16 23:39:08 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:40:12 V 19 29 01.33 +11 11 38.9 13.9 V 247
2021-06-16 23:40:12 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:41:15 V 19 29 01.00 +11 11 16.9 14.2 V 247
2021-06-16 23:41:15 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:42:19 V 19 29 00.70 +11 10 56.7 12.7 V 247
2021-06-16 23:42:19 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:43:54 V 19 29 00.14 +11 10 24.2 14.8 V 247
2021-06-16 23:43:54 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:44:58 V 19 28 59.87 +11 10 05.8 14.0 V 247
2021-06-16 23:44:58 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:46:01 V 19 28 59.54 +11 09 43.7 13.6 V 247
2021-06-16 23:46:01 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:46:33 V 19 28 59.31 +11 09 34.2 13.7 V 247
2021-06-16 23:46:33 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:47:05 V 19 28 59.22 +11 09 22.6 13.8 V 247
2021-06-16 23:47:05 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:47:36 V 19 28 59.05 +11 09 14.1 13.8 V 247
2021-06-16 23:47:36 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:48:08 V 19 28 58.87 +11 09 02.8 13.8 V 247
2021-06-16 23:48:08 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:48:40 V 19 28 58.74 +11 08 51.8 13.9 V 247
2021-06-16 23:48:40 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:49:12 V 19 28 58.66 +11 08 43.5 13.5 V 247
2021-06-16 23:49:12 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:50:47 V 19 28 58.12 +11 08 13.0 14.1 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)