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
2017-12-25 11:55:14 C 07 02 48.60 +58 10 26.1 U T05
2017-12-25 12:18:43 C 07 02 23.28 +58 18 38.0 U T05
2017-12-25 12:23:20 C 07 02 18.28 +58 20 14.5 U T05
2017-12-29 10:02:18 C 04 40 10.31 +76 50 35.2 U T05
2017-12-29 10:27:13 C 04 39 17.05 +76 52 33.6 U T05
2017-12-29 10:28:31 C 04 39 14.06 +76 52 40.0 U T05
2017-12-29 10:41:56 C 04 38 45.42 +76 53 42.9 U T05
2018-12-19 10:17:29 C 05 16 00.84 -43 21 17.4 V T08
2018-12-19 10:30:07 C 05 15 49.98 -43 18 05.3 V T08
2018-12-19 10:38:45 C 05 15 42.54 -43 15 52.9 V T08
2018-12-19 10:42:46 C 05 15 39.14 -43 14 52.5 V T08
2018-12-19 10:51:23 C 05 15 31.66 -43 12 39.8 V T08
2018-12-19 10:55:21 C 05 15 28.27 -43 11 39.1 V T08
2018-12-19 11:04:00 C 05 15 20.82 -43 09 26.7 V T08
2018-12-19 11:16:38 C 05 15 09.94 -43 06 11.5 V T08
2018-12-20 00:48:51 C 05 04 20.03 -39 20 15.7 V 822
2018-12-20 00:54:44 C 05 04 14.96 -39 18 32.1 V 822
2018-12-20 01:00:35 C 05 04 09.89 -39 16 48.4 V 822
2018-12-20 03:59:14 C 05 01 35.15 -38 23 02.0 V W87
2018-12-20 04:00:01 C 05 01 34.47 -38 22 47.6 V W87
2018-12-20 04:00:48 C 05 01 33.77 -38 22 33.2 V W87
2018-12-20 04:01:35 C 05 01 33.10 -38 22 18.6 V W87
2018-12-20 04:02:22 C 05 01 32.42 -38 22 04.1 V W87
2018-12-20 04:03:08 C 05 01 31.74 -38 21 49.6 V W87
2018-12-21 09:57:00 C 04 36 28.26 -27 35 25.2 V T05
2018-12-21 10:08:54 C 04 36 17.54 -27 30 26.4 V T05
2018-12-21 10:21:31 C 04 36 06.18 -27 25 09.0 V T05
2018-12-21 10:33:28 C 04 35 55.45 -27 20 07.9 V T05
2018-12-24 08:53:36 C 03 37 21.04 +07 57 10.8 V T08
2018-12-24 09:05:14 C 03 37 11.08 +08 03 06.7 V T08
2018-12-24 09:16:45 C 03 37 01.21 +08 08 59.5 V T08
2018-12-24 21:33:40 C 03 27 18.18 +14 12 28.3 V 595
2018-12-24 21:34:39 C 03 27 17.36 +14 12 56.6 V 595
2018-12-24 21:35:38 C 03 27 16.55 +14 13 24.5 V 595
2018-12-24 21:36:37 C 03 27 15.77 +14 13 52.8 V 595
2018-12-24 21:37:35 C 03 27 14.94 +14 14 20.7 V 595
2018-12-25 17:12:14 C 03 12 22.21 +22 57 11.5 q C23
2018-12-25 17:16:45 C 03 12 18.70 +22 59 04.1 q C23
2018-12-25 17:22:31 C 03 12 14.24 +23 01 26.8 q C23
2018-12-25 17:42:01 C 03 11 59.09 +23 09 29.3 q C23
2018-12-25 17:44:29 C 03 11 57.17 +23 10 30.4 q C23
2018-12-25 17:47:22 C 03 11 54.94 +23 11 41.4 q C23
2018-12-25 19:20:04 C 03 10 42.61 +23 49 30.3 q C23
2018-12-25 19:23:07 C 03 10 40.25 +23 50 44.0 q C23
2018-12-25 19:25:34 C 03 10 38.33 +23 51 43.6 q C23
2018-12-25 20:55:20 C 03 09 27.11 +24 28 02.2 q 160
2018-12-25 20:58:44 C 03 09 24.44 +24 29 23.0 q 160
2018-12-25 21:02:03 C 03 09 21.85 +24 30 42.0 q 160
2018-12-26 17:42:34 C 02 54 31.01 +31 56 52.3 q C23
2018-12-26 17:44:38 C 02 54 29.52 +31 57 32.5 q C23
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)