531277 (2012 MM11)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6481452183 ± 5.37e-09
Semi-major axis (a)2.1135617867 AU ± 6.70e-10
Inclination (i)3.18436077° ± 1.68e-06
Long. of Asc. Node (Ω)245.40424402° ± 2.99e-05
Arg. of Perihelion (ω)124.24761995° ± 2.99e-05
Mean Anomaly (M)109.70832634° ± 2.11e-06
Mean Motion (n)0.3207671266°/day ± 1.53e-10
Perihelion dist (q)0.74366682 AU ± 1.14e-08
Aphelion dist (Q)3.48345675 AU ± 1.14e-08
Orbital Period3.07271600 yr ± 1.46e-09
Physical Parameters
H (abs. magnitude)20.30
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.277″
Uncertainty0
Orbit TypeApollo
MOID0.011457 AU
Observations Used511
Radar Obs Used3
Oppositions1
Arc Total2012-2022
First Observation Used2012-06-24
Last Observation Used2022-02-03
Observations (556)
Date Type RA Dec Mag Band Observatory
2012-07-05 23:21:35 C 20 00 51.12 -02 21 43.0 o J13
2012-07-05 23:22:14 C 20 00 51.18 -02 21 40.4 o J13
2012-07-06 00:45:00 C 20 00 59.79 -02 15 54.3 u 160
2012-07-06 00:49:11 C 20 01 00.32 -02 15 36.1 u 160
2012-07-06 00:52:11 C 20 01 00.70 -02 15 23.0 u 160
2012-07-06 06:09:28 C 20 01 46.15 -01 50 32.2 u 807
2012-07-06 06:12:49 C 20 01 46.59 -01 50 17.0 u 807
2012-07-06 06:16:08 C 20 01 47.00 -01 50 01.8 u 807
2012-07-06 06:19:26 C 20 01 47.42 -01 49 47.0 u 807
2012-07-06 06:22:44 C 20 01 47.86 -01 49 32.1 u 807
2012-07-06 06:26:02 C 20 01 48.26 -01 49 17.1 u 807
2012-07-06 06:29:01 C 20 01 48.67 -01 49 03.5 u 807
2012-07-07 00:46:33 C 20 04 37.51 -00 22 55.0 u 160
2012-07-07 00:50:24 C 20 04 38.08 -00 22 35.6 u 160
2012-07-07 00:54:32 C 20 04 38.69 -00 22 14.6 u 160
2012-07-07 04:39:57 C 20 05 17.44 -00 01 32.7 u 807
2012-07-07 04:41:37 C 20 05 17.68 -00 01 24.1 u 807
2012-07-07 04:43:21 C 20 05 17.95 -00 01 15.4 u 807
2012-07-07 04:45:08 C 20 05 18.22 -00 01 06.1 u 807
2012-07-07 04:46:56 C 20 05 18.46 -00 00 56.6 u 807
2012-07-07 04:50:04 C 20 05 18.95 -00 00 40.6 u 807
2012-07-07 06:01:30 C 20 05 30.71 +00 04 08.3 u H21
2012-07-07 06:05:54 C 20 05 31.37 +00 04 31.1 u H21
2012-07-07 06:08:45 C 20 05 31.81 +00 04 46.2 u H21
2012-07-07 06:11:15 C 20 05 32.19 +00 04 59.1 u H21
2012-07-07 06:21:56 C 20 05 33.81 +00 05 55.0 u H21
2012-07-07 06:24:46 C 20 05 34.24 +00 06 10.0 u H21
2012-07-07 06:27:26 C 20 05 34.64 +00 06 24.0 u H21
2012-07-07 06:30:55 C 20 05 35.17 +00 06 42.2 u H21
2012-07-07 06:48:47 C 20 05 38.36 +00 08 16.6 u H36
2012-07-07 06:51:27 C 20 05 38.80 +00 08 31.0 u H36
2012-07-07 06:56:52 C 20 05 39.62 +00 08 59.6 u H36
2012-07-07 07:02:18 C 20 05 40.44 +00 09 28.1 u H36
2012-07-07 08:41:11 C 20 05 57.33 +00 18 11.9 t G58
2012-07-07 08:46:15 C 20 05 58.12 +00 18 38.7 t G58
2012-07-07 08:52:37 C 20 05 59.08 +00 19 12.5 t G58
2012-07-07 08:57:47 C 20 05 59.87 +00 19 40.0 t G58
2012-07-07 09:04:02 C 20 06 00.83 +00 20 13.2 t G58
2012-07-07 09:10:47 C 20 06 01.86 +00 20 49.1 t G58
2012-07-07 09:20:14 C 20 06 03.32 +00 21 39.6 t G58
2012-07-07 21:29:51 C 20 08 15.65 +01 29 02.1 c A53
2012-07-07 21:32:37 C 20 08 16.13 +01 29 18.0 c A53
2012-07-07 21:38:33 C 20 08 17.16 +01 29 52.2 c A53
2012-07-07 21:41:19 C 20 08 17.66 +01 30 08.4 c A53
2012-07-07 21:44:13 C 20 08 18.16 +01 30 25.2 c A53
2012-07-07 21:47:16 C 20 08 18.66 +01 30 42.9 c A53
2012-07-08 00:11:18 C 20 08 44.52 +01 44 47.9 u I76
2012-07-08 00:12:23 C 20 08 44.62 +01 44 53.9 u I76
2012-07-08 00:13:31 C 20 08 44.83 +01 45 01.2 u I76
2012-07-08 00:14:36 C 20 08 45.06 +01 45 07.5 u I76
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-07-13 05:20:00 180453.5456 0.5 Hz 2380 -1 -1
2012-07-13 05:37:00 69156556.02 4 us 2380 -1 -1
2012-07-13 06:10:00 69007705.6 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)