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
2012-07-11 06:13:30 C 20 28 34.71 +11 54 27.6 u H21
2012-07-11 06:17:35 C 20 28 36.02 +11 55 09.5 u H21
2012-07-11 06:21:41 C 20 28 37.34 +11 55 51.7 u H21
2012-07-11 06:23:51 C 20 28 38.03 +11 56 14.0 u H21
2012-07-11 06:27:56 C 20 28 39.33 +11 56 56.0 u H21
2012-07-11 06:31:09 C 20 28 40.36 +11 57 28.9 u H21
2012-07-11 06:32:15 C 20 28 43.77 +11 57 38.4 t G56
2012-07-11 06:32:44 C 20 28 40.87 +11 57 45.4 u H21
2012-07-11 06:34:35 C 20 28 44.56 +11 58 02.8 t G56
2012-07-11 06:40:34 C 20 28 46.43 +11 59 04.8 t G56
2012-07-11 06:44:15 C 20 28 47.66 +11 59 42.6 t G56
2012-07-11 08:52:48 C 20 29 26.32 +12 21 56.4 u H21
2012-07-11 08:56:53 C 20 29 27.67 +12 22 38.8 u H21
2012-07-11 09:00:57 C 20 29 29.01 +12 23 21.4 u H21
2012-07-11 09:04:59 C 20 29 30.35 +12 24 03.4 u H21
2012-07-11 09:09:04 C 20 29 31.70 +12 24 46.0 u H21
2012-07-11 21:55:04 C 20 34 25.05 +14 44 57.4 t J84
2012-07-11 22:07:01 C 20 34 29.62 +14 47 16.2 t J84
2012-07-11 22:17:59 C 20 34 33.85 +14 49 23.7 t J84
2012-07-11 22:23:57 C 20 34 36.14 +14 50 33.3 t J84
2012-07-11 22:29:56 C 20 34 38.45 +14 51 42.9 t J84
2012-07-12 02:27:13 C 20 36 10.08 +15 38 46.1 u I56
2012-07-12 02:31:18 C 20 36 11.65 +15 39 34.7 u I56
2012-07-12 02:35:24 C 20 36 13.20 +15 40 24.0 u I56
2012-07-12 02:39:30 C 20 36 14.78 +15 41 12.0 u I56
2012-07-12 06:09:06 C 20 37 47.11 +16 23 32.9 u H21
2012-07-12 06:11:54 C 20 37 48.24 +16 24 07.4 u H21
2012-07-12 06:13:40 C 20 37 48.96 +16 24 29.2 u H21
2012-07-12 06:15:42 C 20 37 49.78 +16 24 54.3 u H21
2012-07-12 06:17:29 C 20 37 50.50 +16 25 16.1 u H21
2012-07-12 06:19:31 C 20 37 51.32 +16 25 41.2 u H21
2012-07-12 06:21:17 C 20 37 52.04 +16 26 03.2 u H21
2012-07-12 06:23:18 C 20 37 52.85 +16 26 28.1 u H21
2012-07-12 06:25:03 C 20 37 53.56 +16 26 49.6 u H21
2012-07-12 06:27:32 C 20 37 54.56 +16 27 20.4 u H21
2012-07-12 07:48:07 C 20 38 27.40 +16 43 59.0 u H21
2012-07-12 07:49:28 C 20 38 31.69 +16 44 16.8 t G58
2012-07-12 07:49:35 C 20 38 31.74 +16 44 18.5 t G58
2012-07-12 07:52:50 C 20 38 29.34 +16 44 57.5 u H21
2012-07-12 07:54:43 C 20 38 30.12 +16 45 21.0 u H21
2012-07-12 07:56:22 C 20 38 30.80 +16 45 41.5 u H21
2012-07-12 07:56:22 C 20 38 34.54 +16 45 43.5 t G58
2012-07-12 07:58:15 C 20 38 31.58 +16 46 05.0 u H21
2012-07-12 08:02:01 C 20 38 33.14 +16 46 52.0 u H21
2012-07-12 08:02:11 C 20 38 36.91 +16 46 56.2 t G58
2012-07-12 08:03:40 C 20 38 33.83 +16 47 12.6 u H21
2012-07-12 08:06:16 C 20 38 34.90 +16 47 44.9 u H21
2012-07-12 08:09:52 C 20 38 40.11 +16 48 32.4 t G58
2012-07-14 06:55:43 C 21 05 23.56 +28 24 31.6 u H21
2012-07-14 06:59:17 C 21 05 26.08 +28 25 33.6 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)