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
2021-07-01 18:47:33 v 1 055.57605 -21.19280 – – 247
2021-07-01 18:48:13 V 18 36 32.33 -41 35 28.4 16.7 V 247
2021-07-01 18:48:13 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:00:08 V 18 36 31.12 -41 36 02.7 16.2 V 247
2021-07-01 19:00:08 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:02:47 V 18 36 30.75 -41 36 11.0 15.3 V 247
2021-07-01 19:02:47 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:03:26 V 18 36 30.72 -41 36 11.7 15.2 V 247
2021-07-01 19:03:26 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:04:06 V 18 36 30.73 -41 36 11.7 15.2 V 247
2021-07-01 19:04:06 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:06:45 V 18 36 30.43 -41 36 21.0 14.5 V 247
2021-07-01 19:06:45 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:07:25 V 18 36 30.40 -41 36 23.6 14.5 V 247
2021-07-01 19:07:25 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:08:04 V 18 36 30.34 -41 36 24.8 14.6 V 247
2021-07-01 19:08:04 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:08:44 V 18 36 30.36 -41 36 26.6 14.7 V 247
2021-07-01 19:08:44 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:11:23 V 18 36 29.98 -41 36 34.2 15.4 V 247
2021-07-01 19:11:23 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:12:03 V 18 36 29.89 -41 36 35.3 15.2 V 247
2021-07-01 19:12:03 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:12:42 V 18 36 29.88 -41 36 37.3 15.3 V 247
2021-07-01 19:12:42 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:13:22 V 18 36 29.80 -41 36 38.9 13.6 V 247
2021-07-01 19:13:22 v 1 055.57605 -21.19280 – – 247
2021-07-01 19:14:02 V 18 36 29.86 -41 36 41.7 13.0 V 247
2021-07-01 19:14:02 v 1 055.57605 -21.19280 – – 247
2021-07-08 10:25:57 C 18 26 52.68 -46 44 33.9 – V T08
2021-07-08 10:29:57 C 18 26 52.43 -46 44 38.8 – V T08
2021-07-08 10:37:59 C 18 26 51.93 -46 44 49.2 – V T08
2021-07-08 11:22:18 C 18 26 49.19 -46 45 44.2 – V T08
2021-07-11 09:36:10 C 18 24 11.48 -48 02 04.6 – q R65
2021-07-11 09:56:17 C 18 24 10.59 -48 02 23.6 – q R65
2021-07-11 10:15:42 C 18 24 09.73 -48 02 41.9 – q R65
2021-07-13 10:34:07 C 18 22 47.15 -48 42 26.7 – q R65
2021-07-13 11:38:12 C 18 22 44.85 -48 43 14.0 – q R65
2021-07-13 11:57:20 C 18 22 44.16 -48 43 28.1 – q R65
2023-09-08 11:22:30 C 01 30 07.801 -24 58 08.73 – X F52
2023-09-08 11:37:07 C 01 30 07.044 -24 58 18.44 – X F52
2023-09-08 11:51:45 C 01 30 06.286 -24 58 28.39 – X F52
2023-09-08 12:06:23 C 01 30 05.530 -24 58 38.06 – X F52
2023-09-13 11:31:57 C 01 23 38.655 -26 15 11.94 – X F51
2023-09-13 11:47:17 C 01 23 37.731 -26 15 21.42 – X F51
2023-09-13 12:02:35 C 01 23 36.800 -26 15 30.86 – X F51
2023-09-18 11:18:47 C 01 16 11.587 -27 24 58.14 – X F52
2023-09-18 11:33:29 C 01 16 10.585 -27 25 06.15 – X F52
2023-09-18 12:03:03 C 01 16 08.551 -27 25 22.38 – X F52
2023-10-18 07:43:59 C 00 25 15.278 -30 06 01.92 – X F51
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)