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
2012-06-24 07:30:04 C 19 38 14.23 -13 22 31.5 18.6 c 704
2012-06-24 07:44:59 C 19 38 14.89 -13 22 12.4 19.0 c 704
2012-06-24 08:00:25 C 19 38 15.55 -13 21 53.0 18.7 c 704
2012-06-24 08:15:23 C 19 38 16.11 -13 21 33.6 18.5 c 704
2012-06-24 08:30:08 C 19 38 16.75 -13 21 14.8 18.6 c 704
2012-06-24 23:37:07 C 19 39 03.63 -13 01 26.9 u J95
2012-06-24 23:41:49 C 19 39 03.82 -13 01 20.4 u J95
2012-06-24 23:46:59 C 19 39 04.09 -13 01 13.2 u J95
2012-06-25 01:22:43 C 19 39 10.06 -12 58 15.2 u I39
2012-06-25 01:33:49 C 19 39 10.55 -12 58 01.0 u I39
2012-06-25 02:01:34 C 19 39 11.94 -12 57 24.3 u I39
2012-06-25 03:18:30 C 19 39 15.43 -12 55 39.2 u I39
2012-06-25 03:18:50 C 19 39 13.56 -12 56 21.7 r I89
2012-06-25 03:20:27 C 19 39 13.60 -12 56 19.2 r I89
2012-06-25 03:22:05 C 19 39 13.72 -12 56 17.4 r I89
2012-06-25 03:23:42 C 19 39 13.77 -12 56 15.1 r I89
2012-06-25 03:25:18 C 19 39 13.85 -12 56 12.7 r I89
2012-06-25 03:40:41 C 19 39 16.51 -12 55 09.9 u I39
2012-06-25 04:02:53 C 19 39 17.37 -12 54 39.9 u I39
2012-06-25 04:22:07 C 19 39 18.27 -12 54 13.9 u I39
2012-06-25 06:40:51 C 19 39 25.54 -12 51 44.0 u H36
2012-06-25 06:49:06 C 19 39 25.90 -12 51 32.4 u H36
2012-06-25 06:50:15 C 19 39 25.95 -12 51 30.9 u H36
2012-06-25 07:22:16 C 19 39 27.87 -12 50 43.9 18.4 c 704
2012-06-25 07:37:15 C 19 39 28.54 -12 50 22.9 18.6 c 704
2012-06-25 07:51:48 C 19 39 29.08 -12 50 02.4 18.5 c 704
2012-06-25 08:06:22 C 19 39 29.76 -12 49 42.7 18.5 c 704
2012-06-25 08:20:58 C 19 39 30.43 -12 49 23.1 18.8 c 704
2012-06-26 01:05:32 C 19 40 24.59 -12 25 29.6 v I93
2012-06-26 01:26:38 C 19 40 25.60 -12 24 58.5 v I93
2012-06-26 01:42:23 C 19 40 26.34 -12 24 35.3 v I93
2012-06-26 01:54:42 C 19 40 26.92 -12 24 17.0 v I93
2012-06-26 03:40:58 C 19 40 34.02 -12 20 52.1 u I48
2012-06-26 03:51:40 C 19 40 34.58 -12 20 36.6 u I48
2012-06-26 04:07:58 C 19 40 35.34 -12 20 11.8 u I48
2012-06-26 07:25:12 C 19 40 45.40 -12 16 02.3 r H21
2012-06-26 07:33:13 C 19 40 45.80 -12 15 50.2 r H21
2012-06-26 07:41:09 C 19 40 46.14 -12 15 37.7 r H21
2012-06-27 07:30:09 C 19 42 08.78 -11 38 08.3 u H21
2012-06-27 07:35:28 C 19 42 09.05 -11 37 59.5 u H21
2012-06-27 07:40:56 C 19 42 09.32 -11 37 50.5 u H21
2012-06-27 08:38:40 C 19 42 12.41 -11 36 13.0 u H45
2012-06-27 08:40:29 C 19 42 12.49 -11 36 10.1 u H45
2012-06-27 08:41:55 C 19 42 12.57 -11 36 07.2 u H45
2012-06-27 08:44:04 C 19 42 12.67 -11 36 04.4 u H45
2012-06-27 08:46:07 C 19 42 12.80 -11 36 00.3 u H45
2012-06-27 08:48:24 C 19 42 12.88 -11 35 57.2 u H45
2012-06-27 08:50:01 C 19 42 12.98 -11 35 54.1 u H45
2012-06-27 08:57:59 C 19 42 13.26 -11 35 42.9 u H21
2012-06-27 09:00:58 C 19 42 13.42 -11 35 37.8 u H21
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)