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
2003-12-25 20:10:14 C 01 08 03.89 +08 31 27.1 r 170
2003-12-25 20:12:50 C 01 08 03.75 +08 31 26.9 r 170
2003-12-25 20:15:27 C 01 08 03.59 +08 31 26.6 r 170
2004-01-03 18:38:45 C 00 59 08.54 +08 10 42.3 r 941
2004-01-03 18:40:24 C 00 59 08.48 +08 10 42.2 r 941
2004-01-03 18:42:02 C 00 59 08.42 +08 10 42.1 r 941
2004-01-03 18:43:41 C 00 59 08.36 +08 10 41.9 r 941
2004-01-03 18:45:19 C 00 59 08.28 +08 10 41.8 r 941
2004-01-03 18:46:58 C 00 59 08.24 +08 10 41.7 r 941
2004-02-10 02:05:02 C 00 53 38.00 +10 00 14.3 r 448
2004-02-10 02:19:58 C 00 53 38.02 +10 00 18.3 r 448
2004-02-10 02:33:20 C 00 53 38.15 +10 00 21.1 r 448
2004-07-14 19:15:21 C 00 45 35.11 -09 14 35.2 r 413
2004-07-14 19:30:20 C 00 45 34.79 -09 14 40.7 r 413
2004-07-19 14:43:49 C 00 42 47.715 -09 59 01.38 o 568
2004-07-19 14:47:15 C 00 42 47.606 -09 59 02.85 o 568
2004-07-21 12:49:28 C 00 41 26.514 -10 18 02.69 o 568
2004-07-21 12:52:37 C 00 41 26.404 -10 18 04.04 o 568
2007-09-11 10:25:52 C 04 06 42.90 +18 58 54.5 o 291
2007-09-11 10:49:56 C 04 06 43.29 +18 58 55.6 o 291
2007-09-11 11:06:30 C 04 06 43.56 +18 58 57.8 o 291
2007-10-17 10:07:19 C 04 01 41.08 +19 31 06.3 r G96
2007-10-17 10:16:42 C 04 01 40.72 +19 31 06.0 r G96
2007-10-17 10:26:10 C 04 01 40.33 +19 31 06.0 r G96
2007-10-17 10:35:38 C 04 01 39.97 +19 31 05.9 r G96
2007-10-30 07:13:59 C 03 44 24.38 +19 15 23.4 o 691
2007-10-30 07:39:23 C 03 44 22.47 +19 15 20.7 o 691
2007-10-30 08:04:46 C 03 44 20.48 +19 15 18.5 o 691
2007-10-30 10:21:23 C 03 44 09.96 +19 15 04.8 r G96
2007-10-30 10:40:01 C 03 44 08.48 +19 15 03.0 r G96
2007-10-30 10:58:46 C 03 44 07.04 +19 15 01.1 r G96
2007-10-30 11:17:12 C 03 44 05.64 +19 14 59.2 r G96
2007-11-03 05:54:10 C 03 36 41.10 +19 04 43.0 o 691
2007-11-03 06:19:34 C 03 36 38.79 +19 04 39.9 o 691
2007-11-03 06:45:06 C 03 36 36.47 +19 04 37.1 o 691
2007-11-03 09:20:02 C 03 36 22.46 +19 04 15.3 w 699
2007-11-03 09:46:22 C 03 36 20.11 +19 04 12.2 w 699
2007-11-03 10:12:42 C 03 36 17.67 +19 04 07.8 w 699
2007-11-03 10:39:03 C 03 36 15.27 +19 04 04.6 w 699
2007-11-05 06:15:10 C 03 32 15.12 +18 57 51.2 18.7 c 704
2007-11-05 06:32:50 C 03 32 13.41 +18 57 49.4 19.4 c 704
2007-11-05 06:50:12 C 03 32 11.67 +18 57 46.2 19.2 c 704
2007-11-05 07:07:35 C 03 32 09.99 +18 57 43.5 19.4 c 704
2007-11-05 07:25:08 C 03 32 08.28 +18 57 40.8 19.1 c 704
2007-11-11 00:04:07 C 03 17 45.71 +18 32 00.0 c A24
2007-11-11 00:05:34 C 03 17 45.57 +18 31 59.7 c A24
2007-11-11 00:23:26 C 03 17 43.47 +18 31 55.8 c A24
2007-11-11 00:42:46 C 03 17 41.26 +18 31 51.5 c A24
2007-11-11 01:00:38 C 03 17 39.10 +18 31 47.6 c A24
2007-11-11 01:02:06 C 03 17 39.08 +18 31 46.6 c A24
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)