612781 (2004 MW2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6383711698 ± 1.01e-07
Semi-major axis (a)1.1453395051 AU ± 7.69e-10
Inclination (i)35.09333652° ± 1.10e-05
Long. of Asc. Node (Ω)96.09520304° ± 2.01e-06
Arg. of Perihelion (ω)50.17920761° ± 8.57e-06
Mean Anomaly (M)221.51509169° ± 5.04e-06
Mean Motion (n)0.8041015794°/day ± 8.09e-10
Perihelion dist (q)0.41418779 AU ± 1.16e-07
Aphelion dist (Q)1.87649122 AU ± 1.16e-07
Orbital Period1.22574847 yr ± 1.23e-09
Physical Parameters
H (abs. magnitude)19.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.280″
Uncertainty0
Orbit TypeApollo
MOID0.071198 AU
Observations Used168
Radar Obs Used1
Oppositions2
Arc Total2004-2015
First Observation Used2004-06-20
Last Observation Used2025-07-02
Observations (182)
Date Type RA Dec Mag Band Observatory
2004-06-20 08:12:35 C 20 56 04.74 -00 48 23.4 17.2 c 704
2004-06-20 08:27:00 C 20 55 54.98 -00 51 20.4 17.4 c 704
2004-06-20 08:41:18 C 20 55 45.28 -00 54 15.1 17.4 c 704
2004-06-20 08:55:35 C 20 55 35.59 -00 57 10.0 17.6 c 704
2004-06-20 09:10:05 C 20 55 25.72 -01 00 08.0 17.6 c 704
2004-06-21 00:03:09 C 20 45 36.06 -04 01 37.9 c A50
2004-06-21 00:03:35 C 20 45 35.75 -04 01 43.3 c A50
2004-06-21 00:04:01 C 20 45 35.46 -04 01 48.8 c A50
2004-06-21 00:04:28 C 20 45 35.17 -04 01 54.2 c A50
2004-06-21 00:04:56 C 20 45 34.86 -04 01 59.6 c A50
2004-06-21 01:00:31 C 20 44 59.06 -04 13 12.2 r J95
2004-06-21 01:03:52 C 20 44 56.81 -04 13 52.8 r J95
2004-06-21 01:06:40 C 20 44 54.95 -04 14 26.5 r J95
2004-06-21 07:34:37 C 20 40 41.22 -05 31 53.7 c 854
2004-06-21 07:37:28 C 20 40 39.32 -05 32 28.1 c 854
2004-06-21 07:38:25 C 20 40 38.68 -05 32 39.4 c 854
2004-06-21 07:39:50 C 20 40 37.70 -05 32 58.7 o 699
2004-06-21 07:40:29 C 20 40 37.28 -05 33 07.1 o 699
2004-06-21 07:41:10 C 20 40 36.85 -05 33 14.7 o 699
2004-06-21 07:41:49 C 20 40 36.42 -05 33 23.0 o 699
2004-06-21 07:43:16 C 20 40 35.42 -05 33 40.1 o 699
2004-06-21 07:43:57 C 20 40 34.97 -05 33 48.4 o 699
2004-06-21 07:44:36 C 20 40 34.55 -05 33 55.8 o 699
2004-06-21 07:45:18 C 20 40 34.05 -05 34 04.5 o 699
2004-06-21 07:54:59 C 20 40 25.24 -05 36 06.2 785
2004-06-21 08:15:25 C 20 40 11.61 -05 40 09.6 c 785
2004-06-21 08:19:25 C 20 40 08.75 -05 40 58.5 c 785
2004-06-21 08:23:35 C 20 40 05.91 -05 41 48.3 c 785
2004-06-21 08:44:18 C 20 39 54.21 -05 45 49.0 16.6 c 704
2004-06-21 08:48:41 C 20 39 51.23 -05 46 41.2 16.1 c 704
2004-06-21 08:58:10 C 20 39 44.85 -05 48 34.9 17.0 c 704
2004-06-21 09:02:54 C 20 39 41.66 -05 49 31.2 16.6 c 704
2004-06-21 09:12:13 C 20 39 35.42 -05 51 22.7 16.4 c 704
2004-06-21 09:17:07 C 20 39 32.10 -05 52 20.8 16.4 c 704
2004-06-21 09:25:59 C 20 39 26.52 -05 54 07.9 19.1 c 704
2004-06-21 09:31:33 C 20 39 22.41 -05 55 13.1 16.7 c 704
2004-06-21 09:39:44 C 20 39 16.93 -05 56 51.0 16.7 c 704
2004-06-21 09:45:52 C 20 39 12.76 -05 58 04.2 16.3 c 704
2004-06-22 23:05:40 C 20 15 10.08 -13 05 06.1 r A13
2004-06-22 23:06:39 C 20 15 09.46 -13 05 17.5 r A13
2004-06-22 23:07:48 C 20 15 08.70 -13 05 29.6 r A13
2004-06-22 23:08:34 C 20 15 08.26 -13 05 38.2 r A13
2004-06-22 23:09:21 C 20 15 07.74 -13 05 45.8 r A13
2004-06-22 23:37:31 C 20 14 49.22 -13 10 53.1 c 246
2004-06-22 23:37:56 C 20 14 48.95 -13 10 57.5 c 246
2004-06-22 23:38:48 C 20 14 48.38 -13 11 06.9 c 246
2004-06-22 23:40:19 C 20 14 47.35 -13 11 24.2 c 246
2004-06-24 01:05:26 C 19 58 58.63 -17 34 13.2 r J95
2004-06-24 01:06:42 C 19 58 57.85 -17 34 25.0 r J95
2004-06-24 01:08:04 C 19 58 57.00 -17 34 38.6 r J95
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-06-28 00:26:00 -135990.4008 0.5 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)