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 21:24:18 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:24:49 V 19 29 41.60 +11 55 25.0 14.6 V 247
2021-06-16 21:24:49 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:25:21 V 19 29 41.46 +11 55 14.9 13.9 V 247
2021-06-16 21:25:21 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:25:53 V 19 29 41.38 +11 55 02.9 12.9 V 247
2021-06-16 21:25:53 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:28:00 V 19 29 40.61 +11 54 21.5 13.7 V 247
2021-06-16 21:28:00 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:28:32 V 19 29 40.55 +11 54 14.3 14.2 V 247
2021-06-16 21:28:32 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:29:35 V 19 29 40.22 +11 53 51.2 13.8 V 247
2021-06-16 21:29:35 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:30:07 V 19 29 40.09 +11 53 42.1 13.8 V 247
2021-06-16 21:30:07 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:31:11 V 19 29 39.79 +11 53 19.4 14.2 V 247
2021-06-16 21:31:11 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:31:42 V 19 29 39.67 +11 53 11.7 14.1 V 247
2021-06-16 21:31:42 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:33:53 V 19 29 38.92 +11 52 27.5 14.0 V 247
2021-06-16 21:33:53 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:34:57 V 19 29 38.66 +11 52 08.7 12.9 V 247
2021-06-16 21:34:57 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:35:29 V 19 29 38.49 +11 51 58.1 13.7 V 247
2021-06-16 21:35:29 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:37:04 V 19 29 38.06 +11 51 25.5 13.5 V 247
2021-06-16 21:37:04 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:38:39 V 19 29 37.60 +11 50 57.2 12.9 V 247
2021-06-16 21:38:39 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:40:15 V 19 29 37.04 +11 50 24.7 13.5 V 247
2021-06-16 21:40:15 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:40:46 V 19 29 36.90 +11 50 16.3 13.8 V 247
2021-06-16 21:40:46 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:41:18 V 19 29 36.78 +11 50 03.8 13.8 V 247
2021-06-16 21:41:18 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:41:50 V 19 29 36.65 +11 49 55.0 14.5 V 247
2021-06-16 21:41:50 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:42:22 V 19 29 36.47 +11 49 44.9 14.0 V 247
2021-06-16 21:42:22 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:42:54 V 19 29 36.34 +11 49 32.4 13.6 V 247
2021-06-16 21:42:54 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:43:25 V 19 29 36.22 +11 49 23.4 13.8 V 247
2021-06-16 21:43:25 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:43:57 V 19 29 36.05 +11 49 13.5 13.6 V 247
2021-06-16 21:43:57 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:44:29 V 19 29 35.88 +11 49 03.1 13.4 V 247
2021-06-16 21:44:29 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:45:32 V 19 29 35.58 +11 48 43.8 14.2 V 247
2021-06-16 21:45:32 v 1 016.33586 +48.20445 – – 247
2021-06-16 21:48:11 V 19 29 34.77 +11 47 49.7 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)