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 22:38:27 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:38:59 V 19 29 19.70 +11 31 25.2 14.1 V 247
2021-06-16 22:38:59 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:39:31 V 19 29 19.53 +11 31 12.6 14.0 V 247
2021-06-16 22:39:31 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:40:34 V 19 29 19.22 +11 30 54.2 14.0 V 247
2021-06-16 22:40:34 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:42:10 V 19 29 18.75 +11 30 23.6 14.2 V 247
2021-06-16 22:42:10 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:43:13 V 19 29 18.38 +11 30 02.7 13.7 V 247
2021-06-16 22:43:13 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:43:45 V 19 29 18.20 +11 29 52.3 13.9 V 247
2021-06-16 22:43:45 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:44:48 V 19 29 17.90 +11 29 31.6 14.1 V 247
2021-06-16 22:44:48 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:45:20 V 19 29 17.77 +11 29 22.2 13.9 V 247
2021-06-16 22:45:20 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:52:03 V 19 29 15.71 +11 27 09.9 14.0 V 247
2021-06-16 22:52:03 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:52:35 V 19 29 15.56 +11 27 00.3 14.1 V 247
2021-06-16 22:52:35 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:53:07 V 19 29 15.41 +11 26 50.2 13.8 V 247
2021-06-16 22:53:07 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:53:39 V 19 29 15.30 +11 26 41.0 14.1 V 247
2021-06-16 22:53:39 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:54:10 V 19 29 15.18 +11 26 31.1 13.9 V 247
2021-06-16 22:54:10 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:54:42 V 19 29 14.96 +11 26 20.8 14.0 V 247
2021-06-16 22:54:42 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:55:14 V 19 29 14.81 +11 26 08.6 13.8 V 247
2021-06-16 22:55:14 v 1 016.33586 +48.20445 – – 247
2021-06-16 22:55:46 V 19 29 14.60 +11 25 58.3 14.1 V 247
2021-06-16 22:55:46 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:00:00 V 19 29 13.44 +11 24 37.1 12.9 V 247
2021-06-16 23:00:00 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:01:03 V 19 29 13.01 +11 24 15.0 14.0 V 247
2021-06-16 23:01:03 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:01:35 V 19 29 12.85 +11 24 06.2 14.0 V 247
2021-06-16 23:01:35 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:02:07 V 19 29 12.69 +11 23 54.3 14.1 V 247
2021-06-16 23:02:07 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:02:39 V 19 29 12.57 +11 23 45.0 14.0 V 247
2021-06-16 23:02:39 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:03:11 V 19 29 12.34 +11 23 33.7 13.9 V 247
2021-06-16 23:03:11 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:05:18 V 19 29 11.77 +11 22 54.8 13.4 V 247
2021-06-16 23:05:18 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:05:49 V 19 29 11.61 +11 22 43.6 12.6 V 247
2021-06-16 23:05:49 v 1 016.33586 +48.20445 – – 247
2021-06-16 23:07:25 V 19 29 11.12 +11 22 13.3 14.6 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)