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
2015-06-23 20:23:55 C 13 38 44.90 +55 38 03.3 17.4 q 089
2015-06-23 20:27:15 C 13 38 47.94 +55 37 00.7 16.7 q 089
2015-06-25 01:14:08 C 14 01 25.12 +46 12 44.6 q I15
2015-06-25 01:17:36 C 14 01 27.29 +46 11 33.4 q I15
2015-06-25 01:21:05 C 14 01 29.54 +46 10 21.8 q I15
2015-06-25 15:13:37 S 14 10 05.006 +41 22 25.54 L C51
2015-06-25 16:48:03 S 14 10 58.466 +40 49 27.98 L C51
2015-06-26 20:50:51 C 14 24 39.88 +31 02 39.1 q 160
2015-06-26 20:53:08 C 14 24 40.83 +31 01 51.5 q 160
2015-06-26 20:54:15 C 14 24 41.26 +31 01 28.8 q 160
2015-06-26 20:55:24 C 14 24 41.73 +31 01 05.1 q 160
2015-06-26 20:57:35 C 14 24 42.63 +31 00 19.5 q 160
2015-06-26 21:35:32 C 14 24 58.37 +30 47 12.0 q 203
2015-06-26 22:05:32 C 14 25 10.62 +30 36 51.1 q 203
2015-06-26 22:21:32 C 14 25 17.16 +30 31 19.9 q 203
2015-06-27 21:02:32 C 14 34 01.03 +22 56 28.9 q 160
2015-06-27 21:04:36 C 14 34 01.71 +22 55 48.5 q 160
2015-06-27 21:06:40 C 14 34 02.39 +22 55 08.4 q 160
2015-06-28 22:09:37 C 14 41 56.73 +15 12 20.8 q 160
2015-06-28 22:12:38 C 14 41 57.56 +15 11 27.7 q 160
2015-06-28 22:15:16 C 14 41 58.29 +15 10 41.4 q 160
2015-06-29 21:40:31 C 14 48 10.27 +08 44 55.6 q 160
2015-06-29 21:43:16 C 14 48 10.90 +08 44 13.2 q 160
2015-06-29 21:46:01 C 14 48 11.52 +08 43 30.2 q 160
2015-06-30 21:26:20 C 14 53 32.80 +03 01 41.7 q 203
2015-06-30 21:36:57 C 14 53 34.90 +02 59 18.8 q 203
2015-06-30 22:18:31 C 14 53 42.97 +02 50 03.2 q 160
2015-06-30 22:21:21 C 14 53 43.53 +02 49 25.2 q 160
2015-06-30 22:24:08 C 14 53 44.10 +02 48 48.2 q 160
2015-07-01 21:36:36 C 14 58 16.23 -02 00 11.7 q 160
2015-07-01 21:39:23 C 14 58 16.70 -02 00 44.0 q 160
2015-07-01 21:42:09 C 14 58 17.17 -02 01 16.0 q 160
2015-07-02 21:33:52 C 15 02 22.73 -06 17 28.6 q 160
2015-07-02 21:36:38 C 15 02 23.15 -06 17 56.0 q 160
2015-07-02 21:39:25 C 15 02 23.56 -06 18 23.6 q 160
2015-07-04 21:54:26 C 15 09 21.41 -13 12 40.3 q 160
2015-07-04 21:57:13 C 15 09 21.75 -13 13 00.9 q 160
2015-07-04 22:00:00 C 15 09 22.08 -13 13 21.2 q 160
2015-07-05 22:42:45 C 15 12 25.13 -16 02 45.4 q 160
2015-07-05 22:45:36 C 15 12 25.49 -16 03 03.9 q 160
2015-07-05 22:48:28 C 15 12 25.87 -16 03 22.4 q 160
2015-07-06 03:28:10 C 15 12 59.44 -16 32 39.8 u H21
2015-07-06 03:31:28 C 15 12 59.76 -16 33 00.1 u H21
2015-07-06 03:34:46 C 15 13 00.16 -16 33 20.5 u H21
2015-07-06 03:37:57 C 15 13 00.48 -16 33 40.4 u H21
2015-07-06 03:41:07 C 15 13 00.84 -16 33 59.5 u H21
2015-07-06 03:44:18 C 15 13 01.18 -16 34 19.1 u H21
2015-07-11 20:46:54 C 15 26 06.05 -26 35 52.8 t 204
2015-07-11 20:55:11 C 15 26 06.67 -26 36 18.2 t 204
2015-07-22 01:20:32 C 15 43 12.98 -34 37 12.5 u 807
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)