170502 (2003 WM7)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8819492012 ± 2.67e-08
Semi-major axis (a)2.4693887331 AU ± 9.01e-09
Inclination (i)10.52054410° ± 7.29e-06
Long. of Asc. Node (Ω)48.22954250° ± 1.50e-05
Arg. of Perihelion (ω)144.18695460° ± 1.95e-05
Mean Anomaly (M)199.28117270° ± 7.48e-06
Mean Motion (n)0.2539967050°/day ± 1.39e-09
Perihelion dist (q)0.29151331 AU ± 6.59e-08
Aphelion dist (Q)4.64726415 AU ± 6.81e-08
Orbital Period3.88046878 yr ± 2.12e-08
Physical Parameters
H (abs. magnitude)17.36
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.349″
Uncertainty0
Orbit TypeApollo
MOID0.072976 AU
Observations Used517
Radar Obs Used3
Oppositions6
Arc Total2003-2011
First Observation Used2003-11-18
Last Observation Used2019-10-03
Observations (544)
Date Type RA Dec Mag Band Observatory
2003-11-18 04:58:55 C 02 23 03.80 +13 03 47.7 19.3 c 644
2003-11-18 05:28:48 C 02 23 00.78 +13 03 36.7 19.7 c 644
2003-11-18 06:00:40 C 02 22 57.53 +13 03 25.7 19.3 c 644
2003-11-19 04:05:12 C 02 20 44.77 +12 55 29.6 r H36
2003-11-19 04:23:53 C 02 20 43.17 +12 55 22.9 r H36
2003-11-19 04:39:53 C 02 20 41.58 +12 55 17.6 r H36
2003-11-19 04:45:14 C 02 20 40.96 +12 55 15.2 r 649
2003-11-19 04:52:15 C 02 20 39.98 +12 55 10.9 r 649
2003-11-19 04:59:17 C 02 20 39.52 +12 55 06.6 r 649
2003-11-19 05:32:55 C 02 20 36.23 +12 54 58.7 20.3 c 644
2003-11-19 05:48:58 C 02 20 34.58 +12 54 52.8 19.7 c 644
2003-11-19 06:04:58 C 02 20 32.94 +12 54 46.9 19.8 c 644
2003-11-19 07:52:46 C 02 20 21.86 +12 54 07.3 r 448
2003-11-19 08:04:20 C 02 20 20.71 +12 54 02.7 r 448
2003-11-19 08:14:05 C 02 20 19.71 +12 53 59.2 r 448
2003-11-20 04:07:09 C 02 18 20.44 +12 46 49.1 c 673
2003-11-20 04:16:00 C 02 18 19.54 +12 46 45.6 c 673
2003-11-20 04:25:50 C 02 18 18.65 +12 46 41.8 c 673
2003-11-20 04:29:29 C 02 18 18.13 +12 46 40.1 c 673
2003-11-20 04:39:10 C 02 18 17.20 +12 46 37.0 c 673
2003-11-20 04:50:59 C 02 18 15.98 +12 46 33.1 c 673
2003-11-20 05:12:42 C 02 18 13.73 +12 46 24.1 c 854
2003-11-20 05:21:12 C 02 18 12.92 +12 46 21.4 c 854
2003-11-20 05:27:31 C 02 18 12.27 +12 46 19.2 c 854
2003-11-20 05:43:03 C 02 18 10.54 +12 46 12.0 r 649
2003-11-20 05:46:27 C 02 18 10.18 +12 46 10.8 r 649
2003-11-20 05:49:26 C 02 18 10.01 +12 46 10.9 c 926
2003-11-20 05:49:52 C 02 18 09.84 +12 46 09.9 r 649
2003-11-20 05:53:13 C 02 18 09.59 +12 46 10.0 c 926
2003-11-20 05:57:02 C 02 18 09.19 +12 46 08.4 c 926
2003-11-21 05:26:51 C 02 15 47.62 +12 37 34.4 19.9 c 704
2003-11-21 05:45:33 C 02 15 45.64 +12 37 27.8 19.8 c 704
2003-11-21 06:03:59 C 02 15 43.74 +12 37 21.4 19.8 c 704
2003-11-24 04:44:14 C 02 08 38.75 +12 11 20.5 r 448
2003-11-24 05:00:22 C 02 08 37.12 +12 11 14.4 r 448
2003-11-24 05:22:28 C 02 08 34.86 +12 11 06.7 r 448
2003-11-27 22:54:29 C 01 59 43.07 +11 38 07.4 r 941
2003-11-27 22:56:07 C 01 59 42.91 +11 38 06.7 r 941
2003-11-27 22:57:45 C 01 59 42.73 +11 38 06.0 r 941
2003-11-27 22:59:23 C 01 59 42.58 +11 38 05.5 r 941
2003-12-08 17:33:18 C 01 35 59.00 +10 08 42.2 r 540
2003-12-08 17:43:54 C 01 35 58.06 +10 08 38.3 r 540
2003-12-17 04:01:30 C 01 20 28.22 +09 12 02.5 r 448
2003-12-17 04:19:21 C 01 20 26.97 +09 11 57.7 r 448
2003-12-17 04:33:22 C 01 20 25.99 +09 11 54.5 r 448
2003-12-21 03:16:43 C 01 14 19.84 +08 51 03.4 19.6 c 704
2003-12-21 03:36:25 C 01 14 18.59 +08 50 59.4 20.1 c 704
2003-12-21 03:56:06 C 01 14 17.36 +08 50 55.7 19.9 c 704
2003-12-21 04:34:24 C 01 14 14.96 +08 50 48.5 20.2 c 704
2003-12-25 20:07:37 C 01 08 04.01 +08 31 27.7 r 170
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2011-12-08 21:50:00 26286.3197 0.25 Hz 2380 -1 -1
2011-12-08 23:07:00 122256038.1 2 us 2380 -1 -1
2011-12-13 21:11:00 142882995.43 0.4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)