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
2012-07-08 00:15:42 C 20 08 45.26 +01 45 15.2 u I76
2012-07-08 00:16:49 C 20 08 45.40 +01 45 18.7 u I76
2012-07-08 00:17:54 C 20 08 45.56 +01 45 26.2 u I76
2012-07-08 00:19:01 C 20 08 45.77 +01 45 32.2 u I76
2012-07-08 00:20:07 C 20 08 45.99 +01 45 39.0 u I76
2012-07-08 00:23:24 C 20 08 46.53 +01 45 58.9 u I76
2012-07-08 00:24:31 C 20 08 46.77 +01 46 05.3 u I76
2012-07-08 01:58:56 C 20 09 07.00 +01 55 22.3 u I42
2012-07-08 02:07:02 C 20 09 08.47 +01 56 09.2 u I42
2012-07-08 05:52:57 C 20 09 49.97 +02 18 54.5 u H21
2012-07-08 05:55:42 C 20 09 50.45 +02 19 11.2 u H21
2012-07-08 06:09:15 C 20 09 52.87 +02 20 34.1 u H21
2012-07-08 06:12:17 C 20 09 53.41 +02 20 52.6 u H21
2012-07-08 06:14:44 C 20 09 53.85 +02 21 07.8 u H21
2012-07-08 07:41:19 C 20 10 11.14 +02 29 58.6 16.1 r 718
2012-07-08 07:46:54 C 20 10 12.07 +02 30 32.5 16.6 r 718
2012-07-08 07:52:27 C 20 10 13.10 +02 31 06.9 16.5 r 718
2012-07-08 23:35:36 C 20 13 31.79 +04 13 41.9 u I76
2012-07-08 23:36:42 C 20 13 32.01 +04 13 48.3 u I76
2012-07-08 23:37:47 C 20 13 32.23 +04 13 57.1 u I76
2012-07-08 23:39:59 C 20 13 32.67 +04 14 11.6 u I76
2012-07-08 23:41:07 C 20 13 32.84 +04 14 18.4 u I76
2012-07-09 09:17:16 C 20 15 42.48 +05 22 43.8 16.2 r 718
2012-07-09 09:25:05 C 20 15 44.18 +05 23 42.6 16.4 r 718
2012-07-09 09:37:35 C 20 15 46.91 +05 25 14.5 16.3 r 718
2012-07-09 21:07:10 C 20 18 43.26 +06 53 36.2 o C77
2012-07-09 21:08:21 C 20 18 43.61 +06 53 44.9 o C77
2012-07-09 21:09:33 C 20 18 43.85 +06 53 54.7 o C77
2012-07-09 21:17:57 C 20 18 45.97 +06 55 03.1 o C77
2012-07-09 21:19:09 C 20 18 46.27 +06 55 13.0 o C77
2012-07-09 21:20:20 C 20 18 46.54 +06 55 21.2 o C77
2012-07-09 21:21:31 C 20 18 46.83 +06 55 31.0 o C77
2012-07-09 21:22:44 C 20 18 47.16 +06 55 41.1 o C77
2012-07-09 22:01:37 C 20 18 56.80 +07 00 54.9 o C77
2012-07-09 22:02:49 C 20 18 57.06 +07 01 05.0 o C77
2012-07-09 22:04:01 C 20 18 57.36 +07 01 12.5 o C77
2012-07-09 22:05:13 C 20 18 57.69 +07 01 25.5 o C77
2012-07-10 06:28:38 C 20 21 12.06 +08 11 24.5 u H21
2012-07-10 06:30:17 C 20 21 12.49 +08 11 38.6 u H21
2012-07-10 06:31:56 C 20 21 12.92 +08 11 52.8 u H21
2012-07-10 06:34:07 C 20 21 13.48 +08 12 11.7 u H21
2012-07-10 06:36:02 C 20 21 13.98 +08 12 28.1 u H21
2012-07-10 06:38:13 C 20 21 14.54 +08 12 46.9 u H21
2012-07-10 06:42:02 C 20 21 15.54 +08 13 19.7 u H21
2012-07-10 06:43:57 C 20 21 16.03 +08 13 36.2 u H21
2012-07-10 07:59:28 C 20 21 37.82 +08 24 27.1 16.1 r 718
2012-07-10 08:10:36 C 20 21 40.72 +08 26 03.3 16.0 r 718
2012-07-10 08:21:43 C 20 21 43.66 +08 27 40.3 16.1 r 718
2012-07-11 06:08:36 C 20 28 33.15 +11 53 37.3 u H21
2012-07-11 06:11:36 C 20 28 34.11 +11 54 08.1 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)