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
2004-07-16 17:32:53 C 22 03 42.89 -43 02 47.4 r E12
2004-07-27 03:38:26 C 21 35 10.49 -47 53 20.0 r 859
2004-07-27 03:43:05 C 21 35 09.99 -47 53 23.8 r 859
2004-07-27 03:45:19 C 21 35 09.66 -47 53 25.6 r 859
2004-07-28 03:49:34 C 21 32 19.94 -48 12 43.5 r 859
2004-08-11 13:13:48 C 20 55 57.04 -50 27 21.0 r E12
2004-08-11 13:31:39 C 20 55 55.40 -50 27 21.9 r E12
2004-08-11 13:49:28 C 20 55 53.80 -50 27 22.6 r E12
2004-08-11 14:07:15 C 20 55 52.12 -50 27 25.2 r E12
2004-08-20 15:16:08 C 20 40 21.06 -50 08 59.5 r E12
2004-08-20 15:36:50 C 20 40 19.80 -50 08 54.5 r E12
2004-08-20 15:57:33 C 20 40 18.58 -50 08 50.3 r E12
2004-08-20 16:18:14 C 20 40 17.37 -50 08 45.0 r E12
2006-08-18 10:41:48 C 02 03 17.50 -15 58 24.6 d 291
2006-08-18 10:50:11 C 02 03 17.52 -15 58 29.6 d 291
2006-08-18 10:58:09 C 02 03 17.55 -15 58 33.9 d 291
2008-09-22 08:59:56 C 04 26 56.56 +00 20 03.9 o H55
2008-09-22 09:33:50 C 04 26 57.06 +00 19 56.4 o H55
2008-09-23 09:11:25 C 04 27 19.69 +00 14 10.9 o 291
2008-09-23 09:24:53 C 04 27 19.79 +00 14 07.1 o 291
2008-09-23 09:37:25 C 04 27 20.03 +00 14 04.5 o 291
2008-09-24 09:59:47 C 04 27 40.88 +00 08 00.8 o 291
2008-09-24 10:12:41 C 04 27 41.16 +00 07 57.3 o 291
2008-09-24 10:25:20 C 04 27 41.29 +00 07 54.1 o 291
2008-11-19 05:29:34 C 03 35 03.33 -04 58 08.5 r 703
2008-11-19 05:42:29 C 03 35 02.18 -04 58 07.6 r 703
2008-11-19 05:55:30 C 03 35 00.99 -04 58 06.8 r 703
2008-11-19 06:08:21 C 03 34 59.70 -04 58 07.8 r 703
2008-12-02 05:37:39 C 03 07 24.52 -04 04 17.5 r 703
2008-12-02 05:46:16 C 03 07 23.66 -04 04 15.2 r 703
2008-12-02 05:54:59 C 03 07 22.90 -04 04 12.4 r 703
2008-12-02 06:03:40 C 03 07 22.15 -04 04 09.6 r 703
2015-10-25 13:40:13 C 07 15 59.578 +12 04 52.66 L F51
2015-10-25 13:47:15 C 07 16 00.115 +12 04 53.22 L F51
2015-10-25 13:54:16 C 07 16 00.654 +12 04 53.62 L F51
2015-11-21 10:23:17 C 08 09 37.60 +13 45 35.8 R G45
2015-11-21 10:31:09 C 08 09 38.26 +13 45 38.2 R G45
2015-11-21 10:38:40 C 08 09 38.93 +13 45 40.8 R G45
2015-11-21 10:46:46 C 08 09 39.70 +13 45 43.9 R G45
2015-11-22 11:39:35 C 08 11 55.50 +13 54 22.5 q 448
2015-11-22 12:03:04 C 08 11 57.55 +13 54 30.8 q 448
2015-11-22 12:27:29 C 08 11 59.73 +13 54 39.3 q 448
2015-12-08 12:40:04 C 08 52 02.64 +17 39 01.5 q G96
2015-12-08 12:45:58 C 08 52 03.37 +17 39 06.6 q G96
2015-12-08 12:51:54 C 08 52 04.07 +17 39 11.7 q G96
2015-12-08 12:57:48 C 08 52 04.75 +17 39 16.9 q G96
2015-12-11 20:38:06 C 09 02 17.18 +18 55 36.1 q D29
2015-12-11 21:08:34 C 09 02 21.12 +18 56 07.7 q D29
2015-12-14 10:25:49 C 09 10 56.36 +20 04 32.4 R G45
2015-12-14 10:35:57 C 09 10 57.78 +20 04 44.2 R G45
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)