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
2004-06-25 16:36:02 C 19 35 40.30 -23 27 57.6 r 428
2004-06-25 16:36:55 C 19 35 39.73 -23 28 05.4 r 428
2004-06-25 16:41:31 C 19 35 37.10 -23 28 42.1 r 428
2004-06-25 16:42:34 C 19 35 36.51 -23 28 50.4 r 428
2004-06-26 12:56:38 C 19 24 27.53 -26 04 40.5 r 428
2004-06-26 12:57:31 C 19 24 27.04 -26 04 47.3 r 428
2004-06-26 12:58:25 C 19 24 26.53 -26 04 54.3 r 428
2004-06-26 13:00:12 C 19 24 25.56 -26 05 06.6 r 428
2004-06-27 00:39:54 C 19 18 10.56 -27 28 10.7 r 170
2004-06-27 00:40:43 C 19 18 10.11 -27 28 16.5 r 170
2004-06-27 00:41:34 C 19 18 09.66 -27 28 21.9 r 170
2004-06-27 00:43:37 C 19 18 08.55 -27 28 36.0 r 170
2004-06-27 00:44:01 C 19 18 08.34 -27 28 38.8 r 170
2004-06-27 07:16:19 C 19 14 45.00 -28 12 14.3 c 670
2004-06-27 08:51:12 C 19 13 54.60 -28 22 34.7 c 670
2004-06-28 15:44:01 C 18 58 36.73 -31 24 57.0 r 428
2004-06-28 15:45:48 C 18 58 35.88 -31 25 06.0 r 428
2004-06-28 15:47:00 C 18 58 35.24 -31 25 13.1 r 428
2004-06-28 15:48:47 C 18 58 34.43 -31 25 22.2 r 428
2004-06-29 05:40:31 C 18 52 10.00 -32 37 48.2 r 649
2004-06-29 05:42:35 C 18 52 09.03 -32 37 58.4 r 649
2004-06-29 05:44:38 C 18 52 08.08 -32 38 08.6 r 649
2004-07-05 01:45:41 C 18 00 31.19 -40 21 16.5 r 859
2004-07-05 01:47:14 C 18 00 30.79 -40 21 20.4 r 859
2004-07-05 01:48:45 C 18 00 30.42 -40 21 24.2 r 859
2004-07-08 10:19:50 C 17 40 11.22 -42 35 15.7 r E14
2004-07-08 10:28:41 C 17 40 09.32 -42 35 27.8 r E14
2004-07-08 10:34:41 C 17 40 08.05 -42 35 36.9 r E14
2004-07-14 11:19:13 C 17 15 34.20 -44 45 22.6 r 428
2004-07-14 11:23:38 C 17 15 33.53 -44 45 24.5 r 428
2004-07-16 14:04:34 C 17 09 39.720 -45 11 35.63 r 413
2004-07-16 14:29:24 C 17 09 37.004 -45 11 45.90 r 413
2004-07-22 10:16:39 C 16 58 37.45 -45 56 40.6 r 474
2004-07-22 10:22:20 C 16 58 37.11 -45 56 41.5 r 474
2004-07-22 10:25:00 C 16 58 36.93 -45 56 42.1 r 474
2004-07-22 10:29:29 C 16 58 36.73 -45 56 43.7 r 474
2009-06-24 15:43:47 C 22 17 45.64 -36 10 56.7 r E12
2009-06-24 15:50:30 C 22 17 45.09 -36 11 13.0 r E12
2009-06-24 15:59:07 C 22 17 44.32 -36 11 33.1 r E12
2015-06-17 04:27:03 C 07 41 40.45 +76 29 07.8 o 291
2015-06-17 04:27:42 C 07 41 41.86 +76 29 09.5 o 291
2015-06-17 04:28:22 C 07 41 43.45 +76 29 11.5 o 291
2015-06-23 19:57:18 C 13 38 20.79 +55 46 19.7 16.5 q 089
2015-06-23 20:00:37 C 13 38 23.81 +55 45 17.7 16.8 q 089
2015-06-23 20:03:57 C 13 38 26.94 +55 44 15.5 17.0 q 089
2015-06-23 20:07:16 C 13 38 29.89 +55 43 13.6 17.0 q 089
2015-06-23 20:10:36 C 13 38 32.82 +55 42 11.7 16.7 q 089
2015-06-23 20:13:56 C 13 38 35.87 +55 41 09.5 16.8 q 089
2015-06-23 20:17:16 C 13 38 38.89 +55 40 07.1 17.0 q 089
2015-06-23 20:20:35 C 13 38 41.90 +55 39 05.4 17.0 q 089
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)