418849 (2008 WM64)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1063807079 ± 1.75e-08
Semi-major axis (a)1.0059771785 AU ± 2.92e-10
Inclination (i)33.52300852° ± 6.68e-06
Long. of Asc. Node (Ω)91.42917188° ± 6.33e-07
Arg. of Perihelion (ω)256.77340913° ± 1.57e-06
Mean Anomaly (M)36.71145430° ± 3.98e-06
Mean Motion (n)0.9768549543°/day ± 4.25e-10
Perihelion dist (q)0.89896061 AU ± 1.76e-08
Aphelion dist (Q)1.11299374 AU ± 1.76e-08
Orbital Period1.00897915 yr ± 4.39e-10
Physical Parameters
H (abs. magnitude)20.47
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.283″
Uncertainty0
Orbit TypeApollo
MOID0.034485 AU
Observations Used292
Radar Obs Used5
Oppositions1
Arc Total2008-2024
First Observation Used2008-11-24
Last Observation Used2024-01-11
Observations (328)
Date Type RA Dec Mag Band Observatory
2008-11-24 11:42:46 C 10 54 01.08 +04 25 28.1 r G96
2008-11-24 11:55:32 C 10 54 03.13 +04 25 53.2 r G96
2008-11-24 12:08:09 C 10 54 05.11 +04 26 17.7 r G96
2008-11-24 12:20:49 C 10 54 07.23 +04 26 42.9 r G96
2008-11-25 11:32:47 C 10 58 01.86 +05 12 27.5 r H36
2008-11-26 10:16:01 C 11 01 54.96 +05 57 53.3 o H55
2008-11-26 10:44:26 C 11 01 59.76 +05 58 50.6 o H55
2008-11-26 10:58:10 C 11 02 02.00 +05 59 18.1 o H55
2008-11-26 11:12:46 C 11 02 04.45 +05 59 47.8 o H55
2008-11-27 10:26:49 C 11 06 06.20 +06 46 52.0 o H55
2008-11-27 10:52:16 C 11 06 10.66 +06 47 43.3 r H36
2008-11-27 10:52:27 C 11 06 10.57 +06 47 44.4 o H55
2008-11-27 11:20:18 C 11 06 15.30 +06 48 41.0 o H55
2008-11-27 11:45:45 C 11 06 19.78 +06 49 34.1 r H36
2008-11-30 12:00:15 C 11 19 12.60 +09 19 41.3 r G96
2008-11-30 12:08:02 C 11 19 13.88 +09 19 53.7 r G96
2008-11-30 12:15:46 C 11 19 15.18 +09 20 10.3 r G96
2008-11-30 12:23:35 C 11 19 16.56 +09 20 24.9 r G96
2008-12-01 10:47:53 C 11 23 23.07 +10 07 57.4 o 291
2008-12-01 10:53:22 C 11 23 23.98 +10 08 08.3 o 291
2008-12-01 10:59:12 C 11 23 25.03 +10 08 21.6 o 291
2008-12-02 12:15:42 C 11 28 06.12 +11 02 30.7 o 291
2008-12-02 12:22:02 C 11 28 07.04 +11 02 43.5 o 291
2008-12-02 12:28:40 C 11 28 08.36 +11 02 59.3 o 291
2008-12-21 12:44:35 C 13 03 26.24 +27 39 31.4 o 291
2008-12-21 12:50:36 C 13 03 27.42 +27 39 44.6 o 291
2008-12-21 12:56:37 C 13 03 28.88 +27 39 55.7 o 291
2008-12-22 10:17:13 C 13 08 21.74 +28 23 27.2 o 291
2008-12-22 10:23:17 C 13 08 23.04 +28 23 40.2 o 291
2008-12-22 10:29:25 C 13 08 24.50 +28 23 52.4 o 291
2008-12-29 10:53:15 C 13 47 27.78 +33 43 40.8 o 291
2008-12-29 10:59:37 C 13 47 29.15 +33 43 51.3 o 291
2008-12-29 11:06:25 C 13 47 30.64 +33 44 04.6 o 291
2009-02-23 11:07:08 C 17 54 56.32 +51 21 57.2 o H55
2009-02-23 11:16:23 C 17 54 57.40 +51 22 00.2 o H55
2009-02-23 11:25:04 C 17 54 58.36 +51 22 02.9 o H55
2009-05-15 07:32:35 C 19 49 24.16 +61 21 57.8 o H55
2009-05-15 07:45:45 C 19 49 24.44 +61 22 04.8 o H55
2009-05-15 07:59:13 C 19 49 24.72 +61 22 11.6 o H55
2009-05-24 22:56:22 C 19 57 35.52 +63 36 07.7 o A74
2009-05-24 23:58:59 C 19 57 37.69 +63 36 58.1 o A74
2009-05-25 00:59:13 C 19 57 39.84 +63 37 45.6 o A74
2009-06-01 23:44:23 C 20 10 12.91 +66 41 10.0 c B11
2009-06-01 23:55:07 C 20 10 13.85 +66 41 24.9 c B11
2009-06-02 00:05:33 C 20 10 14.75 +66 41 39.3 c B11
2009-06-04 22:34:28 C 20 19 05.75 +68 25 06.2 o A13
2009-06-04 23:08:32 C 20 19 10.97 +68 26 08.6 o A13
2009-06-14 00:25:15 C 22 30 44.25 +78 34 01.7 o A17
2009-06-14 00:42:14 C 22 31 18.42 +78 35 06.2 o A17
2009-06-14 00:59:14 C 22 31 52.72 +78 36 10.9 o A17
Radar Observations (6)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-12-18 10:08:00 65153.9382 0.2 Hz 2380 -1 -1
2016-12-21 09:40:00 71749535.73 4 us 2380 -1 -1
2017-12-21 06:26:00 40756829.46 0.5 us 2380 -1 -1
2017-12-21 06:26:00 79324.838 0.2 Hz 2380 -1 -1
2019-12-27 22:43:00 -110336.0455 0.05 Hz 2380 -1 -1
2019-12-27 23:14:00 85381813.12 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)