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
2015-07-22 01:25:39 C 15 43 13.29 -34 37 18.8 u 807
2015-07-22 01:30:44 C 15 43 13.57 -34 37 24.8 u 807
2015-07-23 00:03:12 C 15 44 40.33 -35 04 35.6 u 807
2015-07-23 00:08:17 C 15 44 40.66 -35 04 41.2 u 807
2015-07-23 00:13:25 C 15 44 40.91 -35 04 47.6 u 807
2018-09-09 08:44:48 C 03 38 08.79 -57 20 01.8 U 807
2018-09-09 08:52:37 C 03 38 09.15 -57 20 13.2 U 807
2018-09-09 09:01:16 C 03 38 09.54 -57 20 25.9 U 807
2020-05-02 10:57:49 C 22 56 17.82 +14 30 46.9 V G96
2020-05-02 11:03:16 C 22 56 17.57 +14 30 37.2 V G96
2020-05-02 11:08:44 C 22 56 17.34 +14 30 27.7 V G96
2020-05-02 11:14:11 C 22 56 17.12 +14 30 18.6 V G96
2020-05-18 19:23:49 C 22 46 14.52 +02 24 32.9 q D29
2020-05-18 19:39:06 C 22 46 14.21 +02 24 02.8 q D29
2020-05-18 19:54:21 C 22 46 13.79 +02 23 33.7 q D29
2020-05-24 14:14:52 C 22 43 26.855 -02 19 47.19 U F52
2020-05-24 14:20:29 C 22 43 26.703 -02 19 59.06 U F52
2020-05-24 14:26:07 C 22 43 26.557 -02 20 11.22 U F52
2020-05-24 14:31:44 C 22 43 26.403 -02 20 23.14 U F52
2020-05-29 14:03:07 C 22 40 19.829 -06 45 33.84 U F52
2020-05-29 14:09:39 C 22 40 19.607 -06 45 49.01 U F52
2020-05-29 14:16:12 C 22 40 19.381 -06 46 04.16 U F52
2020-05-29 14:22:45 C 22 40 19.158 -06 46 19.25 U F52
2020-06-29 01:16:56 C 21 37 28.39 -40 24 43.9 o K95
2020-06-29 01:26:55 C 21 37 26.64 -40 25 10.8 o K95
2024-10-29 00:45:53 C 21 37 19.560 -63 03 58.30 V 807
2024-10-29 00:53:52 C 21 37 19.420 -63 03 51.90 V 807
2024-10-29 01:01:51 C 21 37 19.290 -63 03 45.50 V 807
2025-07-02 14:00:06 C 22 51 31.897 -42 04 26.07 X F51
2025-07-02 14:09:17 C 22 51 31.520 -42 04 42.11 X F51
2025-07-02 14:18:26 C 22 51 31.076 -42 04 58.05 X F51
2025-07-02 14:27:33 C 22 51 30.622 -42 05 13.59 X F51
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)