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 22:45:57 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:46:29 V 19 23 07.60 +03 58 04.0 13.6 V 247
2021-06-17 22:46:29 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:47:01 V 19 23 07.44 +03 57 55.3 13.7 V 247
2021-06-17 22:47:01 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:47:33 V 19 23 07.29 +03 57 44.9 13.9 V 247
2021-06-17 22:47:33 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:48:04 V 19 23 07.15 +03 57 34.4 13.8 V 247
2021-06-17 22:48:04 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:48:36 V 19 23 07.01 +03 57 27.7 13.6 V 247
2021-06-17 22:48:36 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:49:08 V 19 23 06.79 +03 57 14.9 13.8 V 247
2021-06-17 22:49:08 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:49:40 V 19 23 06.66 +03 57 06.1 13.8 V 247
2021-06-17 22:49:40 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:50:12 V 19 23 06.59 +03 56 57.5 13.9 V 247
2021-06-17 22:50:12 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:50:43 V 19 23 06.44 +03 56 47.5 13.6 V 247
2021-06-17 22:50:43 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:51:12 C 19 23 06.82 +03 56 57.6 – V L92
2021-06-17 22:51:15 V 19 23 06.31 +03 56 38.4 13.7 V 247
2021-06-17 22:51:15 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:51:47 V 19 23 06.15 +03 56 29.8 14.0 V 247
2021-06-17 22:51:47 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:52:16 C 19 23 06.46 +03 56 37.9 – V L92
2021-06-17 22:52:19 V 19 23 06.01 +03 56 19.8 13.7 V 247
2021-06-17 22:52:19 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:53:22 V 19 23 05.76 +03 55 58.8 13.5 V 247
2021-06-17 22:53:22 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:53:27 C 19 23 06.25 +03 56 10.8 – V L92
2021-06-17 22:53:54 V 19 23 05.59 +03 55 50.4 13.8 V 247
2021-06-17 22:53:54 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:54:38 C 19 23 05.87 +03 55 56.2 – V L92
2021-06-17 22:54:57 V 19 23 05.27 +03 55 31.8 13.4 V 247
2021-06-17 22:54:57 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:55:29 V 19 23 05.14 +03 55 22.3 13.5 V 247
2021-06-17 22:55:29 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:55:48 C 19 23 05.62 +03 55 38.6 – V L92
2021-06-17 22:56:01 V 19 23 05.01 +03 55 12.5 14.0 V 247
2021-06-17 22:56:01 v 1 016.33600 +48.20413 – – 247
2021-06-17 22:56:59 C 19 23 05.23 +03 55 13.0 – V L92
2021-06-17 22:58:09 C 19 23 04.96 +03 54 53.4 – V L92
2021-06-17 22:59:20 C 19 23 04.59 +03 54 33.4 – V L92
2021-06-17 23:00:32 C 19 23 04.36 +03 54 06.3 – V L92
2021-06-17 23:00:38 V 19 23 03.66 +03 53 49.2 13.3 V 247
2021-06-17 23:00:38 v 1 016.33600 +48.20413 – – 247
2021-06-17 23:01:10 V 19 23 03.53 +03 53 39.3 13.8 V 247
2021-06-17 23:01:10 v 1 016.33600 +48.20413 – – 247
2021-06-17 23:01:42 V 19 23 03.37 +03 53 30.3 13.7 V 247
2021-06-17 23:01:42 v 1 016.33600 +48.20413 – – 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)