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
2012-06-27 09:03:27 C 19 42 13.55 -11 35 33.9 u H21
2012-06-27 09:05:55 C 19 42 13.67 -11 35 29.6 u H21
2012-06-28 06:01:52 C 19 43 32.97 -10 59 28.6 u H21
2012-06-28 06:06:46 C 19 43 33.24 -10 59 20.0 u H21
2012-06-28 06:11:21 C 19 43 33.48 -10 59 11.7 u H21
2012-06-28 06:16:33 C 19 43 33.76 -10 59 02.4 u H21
2012-06-28 06:21:03 C 19 43 34.00 -10 58 54.4 u H21
2012-06-28 06:27:17 C 19 43 34.35 -10 58 43.2 u H21
2012-06-28 08:24:17 C 19 43 40.86 -10 55 10.2 u H45
2012-06-28 08:28:19 C 19 43 41.08 -10 55 02.9 u H45
2012-06-28 08:29:45 C 19 43 41.17 -10 55 00.1 u H45
2012-06-28 08:31:06 C 19 43 41.27 -10 54 58.2 u H45
2012-06-28 08:32:35 C 19 43 41.34 -10 54 55.1 u H45
2012-06-28 08:34:01 C 19 43 41.40 -10 54 52.7 u H45
2012-06-28 08:35:30 C 19 43 41.48 -10 54 50.1 u H45
2012-06-28 22:18:21 C 19 44 37.31 -10 29 25.4 u 104
2012-06-28 22:23:31 C 19 44 37.74 -10 29 14.6 u 104
2012-06-28 23:07:17 C 19 44 40.30 -10 27 51.7 u 204
2012-06-28 23:19:39 C 19 44 41.02 -10 27 28.6 u 204
2012-06-29 05:42:44 C 19 45 07.22 -10 15 01.4 u H21
2012-06-29 05:46:25 C 19 45 07.44 -10 14 53.9 u H21
2012-06-29 05:50:21 C 19 45 07.68 -10 14 46.1 u H21
2012-06-29 07:49:10 C 19 45 15.91 -10 10 50.8 w G68
2012-06-29 07:52:31 C 19 45 16.20 -10 10 44.6 w G68
2012-06-29 07:55:50 C 19 45 16.36 -10 10 38.5 w G68
2012-06-29 07:59:11 C 19 45 16.62 -10 10 31.2 w G68
2012-06-29 08:00:50 C 19 45 16.62 -10 10 28.3 w G68
2012-06-29 08:04:11 C 19 45 16.87 -10 10 21.4 w G68
2012-06-29 08:07:30 C 19 45 17.06 -10 10 14.9 w G68
2012-06-29 08:19:20 C 19 45 16.65 -10 09 49.5 u H45
2012-06-29 08:25:50 C 19 45 17.02 -10 09 36.3 u H45
2012-06-29 08:27:44 C 19 45 17.16 -10 09 32.3 u H45
2012-06-29 08:29:58 C 19 45 17.26 -10 09 27.9 u H45
2012-06-29 08:31:46 C 19 45 17.39 -10 09 24.3 u H45
2012-06-29 08:32:56 C 19 45 17.45 -10 09 22.0 u H45
2012-06-29 08:34:04 C 19 45 17.56 -10 09 19.5 u H45
2012-06-30 06:01:35 C 19 46 51.70 -09 24 41.1 u H21
2012-06-30 06:08:29 C 19 46 52.15 -09 24 26.3 u H21
2012-06-30 06:15:22 C 19 46 52.60 -09 24 11.3 u H21
2012-06-30 06:22:23 C 19 46 53.05 -09 23 55.9 u H21
2012-06-30 06:28:34 C 19 46 53.46 -09 23 42.7 u H21
2012-06-30 08:18:17 C 19 47 00.74 -09 19 39.5 u H45
2012-06-30 08:20:42 C 19 47 00.88 -09 19 33.8 u H45
2012-06-30 08:24:05 C 19 47 01.10 -09 19 26.5 u H45
2012-06-30 08:25:53 C 19 47 01.22 -09 19 22.9 u H45
2012-06-30 08:52:03 C 19 47 02.94 -09 18 24.9 u H45
2012-06-30 08:53:17 C 19 47 02.99 -09 18 22.0 u H45
2012-06-30 08:56:03 C 19 47 03.15 -09 18 16.1 u H45
2012-06-30 08:58:04 C 19 47 03.30 -09 18 11.7 u H45
2012-06-30 09:00:01 C 19 47 03.42 -09 18 07.2 u H45
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)