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
2021-01-10 02:40:30 C 01 04 51.29 +37 17 50.2 U I41
2021-01-10 02:42:31 C 01 04 51.23 +37 17 59.0 U I41
2021-01-10 03:48:56 C 01 04 48.99 +37 22 49.0 U I41
2021-01-10 03:50:21 C 01 04 48.93 +37 22 55.1 U I41
2021-01-16 02:51:20 C 01 02 57.17 +45 53 07.3 V G96
2021-01-16 02:59:39 C 01 02 57.03 +45 53 30.9 V G96
2021-01-16 03:07:59 C 01 02 56.92 +45 53 54.7 V G96
2021-01-16 03:16:19 C 01 02 56.79 +45 54 18.3 V G96
2022-01-04 03:51:01 C 01 05 11.59 +10 46 00.3 V 703
2022-01-04 04:15:42 C 01 05 11.50 +10 48 57.2 V 703
2022-01-06 02:11:56 C 01 05 36.03 +16 01 45.5 V G96
2022-01-06 02:20:08 C 01 05 36.03 +16 02 38.0 V G96
2022-01-06 02:28:19 C 01 05 36.03 +16 03 31.2 V G96
2022-01-06 02:36:30 C 01 05 36.01 +16 04 24.2 V G96
2022-01-14 02:55:37 C 01 08 29.90 +32 40 15.7 V G96
2022-01-14 03:02:31 C 01 08 29.99 +32 40 43.6 V G96
2022-01-14 03:09:23 C 01 08 30.07 +32 41 11.3 V G96
2022-01-14 03:16:15 C 01 08 30.16 +32 41 38.9 V G96
2022-01-21 03:20:05 C 01 12 43.69 +42 08 32.7 V G96
2022-01-21 03:27:33 C 01 12 43.87 +42 08 53.4 V G96
2022-01-21 03:42:26 C 01 12 44.23 +42 09 34.3 V G96
2023-12-30 02:16:34 C 00 45 06.830 -17 56 22.90 V 807
2023-12-30 02:20:50 C 00 45 07.120 -17 55 56.50 V 807
2023-12-30 02:25:13 C 00 45 07.400 -17 55 29.60 V 807
2024-01-11 01:44:19 C 01 03 53.770 +09 23 19.25 V G96
2024-01-11 01:52:28 C 01 03 54.212 +09 23 59.71 V G96
2024-01-11 02:00:36 C 01 03 54.673 +09 24 40.25 V G96
2024-01-11 02:08:45 C 01 03 55.120 +09 25 20.89 V G96
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)