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
2012-07-14 07:02:50 C 21 05 28.60 +28 26 35.6 u H21
2012-07-14 07:06:39 C 21 05 31.30 +28 27 42.1 u H21
2012-07-14 07:14:16 C 21 05 36.70 +28 29 54.9 u H21
2012-07-14 07:18:05 C 21 05 39.40 +28 31 01.3 u H21
2012-07-14 07:21:54 C 21 05 42.11 +28 32 07.9 u H21
2012-07-14 07:24:57 C 21 05 44.27 +28 33 01.0 u H21
2012-07-14 23:15:05 C 21 18 55.00 +33 21 14.2 o J16
2012-07-14 23:17:58 C 21 18 57.60 +33 22 09.8 o J16
2012-07-14 23:23:53 C 21 19 02.87 +33 24 03.1 o J16
2012-07-15 08:05:24 C 21 27 25.93 +36 13 41.7 u H21
2012-07-15 08:08:29 C 21 27 29.01 +36 14 42.8 u H21
2012-07-15 08:10:34 C 21 27 31.07 +36 15 23.8 u H21
2012-07-15 08:12:10 C 21 27 32.66 +36 15 55.4 u H21
2012-07-15 08:14:00 C 21 27 34.48 +36 16 31.7 u H21
2012-07-15 08:17:27 C 21 27 37.91 +36 17 39.8 u H21
2012-07-15 08:18:50 C 21 27 39.29 +36 18 07.1 u H21
2012-07-15 08:20:53 C 21 27 41.35 +36 18 47.9 u H21
2012-07-15 23:50:49 C 21 45 47.93 +41 32 59.6 u 160
2012-07-15 23:52:29 C 21 45 50.04 +41 33 34.3 u 160
2012-07-15 23:54:16 C 21 45 52.31 +41 34 11.5 u 160
2012-07-15 23:56:11 C 21 45 54.69 +41 34 51.0 u 160
2012-07-16 20:32:53 C 22 17 29.66 +48 40 22.0 u 204
2012-07-16 20:34:07 C 22 17 31.84 +48 40 47.6 u 204
2012-07-16 20:36:22 C 22 17 35.85 +48 41 34.4 u 204
2012-07-16 20:38:29 C 22 17 39.58 +48 42 18.2 u 204
2012-07-16 21:01:12 C 22 18 20.02 +48 50 13.5 c A48
2012-07-16 21:02:04 C 22 18 21.56 +48 50 31.8 c A48
2012-07-16 21:02:56 C 22 18 23.15 +48 50 49.9 c A48
2012-07-16 21:03:48 C 22 18 24.67 +48 51 07.8 c A48
2012-07-16 22:54:44 C 22 21 43.94 +49 29 15.4 c A53
2012-07-16 22:58:45 C 22 21 51.23 +49 30 37.8 c A53
2012-07-16 23:00:48 C 22 21 54.98 +49 31 20.0 c A53
2012-07-16 23:04:50 C 22 22 02.22 +49 32 42.2 c A53
2012-07-17 00:37:22 C 22 24 51.85 +50 04 11.4 u 160
2012-07-17 00:38:00 C 22 24 53.00 +50 04 23.8 u 160
2012-07-17 00:39:10 C 22 24 55.15 +50 04 47.6 u 160
2012-07-17 00:40:57 C 22 24 58.47 +50 05 23.7 u 160
2012-07-17 00:41:40 C 22 24 59.81 +50 05 38.0 u 160
2012-07-17 01:07:33 C 22 25 47.79 +50 14 12.9 t B75
2012-07-17 01:08:09 C 22 25 49.34 +50 14 28.9 t B75
2012-07-17 01:08:49 C 22 25 50.37 +50 14 40.1 t B75
2012-07-17 01:09:21 C 22 25 51.57 +50 14 52.9 t B75
2012-07-17 01:10:09 C 22 25 52.96 +50 15 07.2 t B75
2012-07-17 01:11:15 C 22 25 55.11 +50 15 29.9 t B75
2012-07-17 02:00:12 C 22 27 26.76 +50 31 52.7 c A24
2012-07-17 02:00:34 C 22 27 27.38 +50 31 59.2 c A24
2012-07-17 02:00:56 C 22 27 28.12 +50 32 07.3 c A24
2012-07-17 08:56:31 C 22 41 36.36 +52 48 10.6 u H21
2012-07-17 08:57:42 C 22 41 38.82 +52 48 33.3 u H21
2012-07-17 09:00:17 C 22 41 44.26 +52 49 22.9 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)