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
2018-12-16 00:05:06 C 08 26 44.16 +09 24 43.8 q 157
2018-12-16 00:07:10 C 08 26 43.47 +09 24 46.7 q 157
2018-12-16 00:09:13 C 08 26 42.76 +09 24 49.4 q 157
2018-12-18 12:04:10 C 08 08 37.23 +10 30 13.5 V T05
2018-12-18 12:16:08 C 08 08 33.76 +10 30 25.1 V T05
2018-12-18 12:28:27 C 08 08 30.21 +10 30 37.0 V T05
2018-12-18 12:40:51 C 08 08 26.64 +10 30 48.9 V T05
2018-12-19 06:05:16 C 08 03 50.68 +10 46 53.4 V 703
2018-12-19 06:13:39 C 08 03 48.39 +10 47 01.3 V 703
2018-12-19 06:22:02 C 08 03 46.17 +10 47 09.3 V 703
2018-12-19 06:30:26 C 08 03 43.92 +10 47 17.3 V 703
2018-12-25 23:36:10 C 07 30 20.78 +12 41 25.5 17.5 q J43
2018-12-25 23:55:50 C 07 30 17.21 +12 41 39.7 17.4 q J43
2018-12-26 00:05:40 C 07 30 15.68 +12 41 41.2 17.3 q J43
2018-12-26 00:15:29 C 07 30 13.99 +12 41 45.8 17.5 q J43
2018-12-27 11:24:22 C 07 24 42.04 +13 00 33.2 V T05
2018-12-27 11:25:02 C 07 24 41.94 +13 00 33.8 V T05
2018-12-27 11:43:32 C 07 24 38.96 +13 00 43.3 V T05
2018-12-27 11:54:55 C 07 24 37.16 +13 00 49.1 V T05
2018-12-31 23:53:34 C 07 10 29.31 +13 49 25.2 q 160
2018-12-31 23:57:36 C 07 10 28.84 +13 49 26.3 q 160
2019-01-01 00:01:39 C 07 10 28.35 +13 49 28.7 q 160
2019-01-03 00:38:13 C 07 05 15.59 +14 08 13.6 q 160
2019-01-03 00:42:06 C 07 05 15.18 +14 08 15.5 q 160
2019-01-03 00:46:01 C 07 05 14.78 +14 08 16.8 q 160
2019-01-04 11:07:50 C 07 01 56.32 +14 20 46.3 V T05
2019-01-04 11:29:55 C 07 01 54.10 +14 20 53.7 V T05
2019-01-04 11:39:26 C 07 01 53.20 +14 20 56.9 V T05
2019-01-04 11:57:21 C 07 01 51.38 +14 21 03.2 V T05
2019-01-04 23:14:38 S 07 00 10.102 +14 34 56.21 V C57
2019-01-04 23:14:38 s 1 -184051.78 7 +174986.78 1410.0 C57
2019-01-05 00:44:38 S 07 00 02.434 +14 35 20.11 V C57
2019-01-05 00:44:38 s 1 -183704.31 6 +168872.48 9340.0 C57
2019-01-05 02:44:38 S 06 59 50.786 +14 35 50.03 V C57
2019-01-05 02:44:38 s 1 -183057.36 9 +160553.40 4160.0 C57
2019-01-05 03:14:38 S 06 59 47.978 +14 35 53.81 V C57
2019-01-05 03:14:38 s 1 -182861.50 4 +158443.59 5310.0 C57
2019-01-05 03:44:38 S 06 59 45.475 +14 36 04.39 V C57
2019-01-05 03:44:38 s 1 -182651.56 8 +156321.70 1190.0 C57
2019-01-05 04:14:38 S 06 59 42.492 +14 36 14.26 V C57
2019-01-05 04:14:38 s 1 -182427.34 0 +154187.66 610.0 C57
2019-01-05 10:44:38 S 06 59 07.826 +14 37 47.50 V C57
2019-01-05 10:44:38 s 1 -178101.56 8 +125324.67 250.0 C57
2019-01-06 00:10:51 C 06 58 40.96 +14 33 05.8 q 160
2019-01-06 00:14:46 C 06 58 40.56 +14 33 06.9 q 160
2019-01-06 23:06:20 C 06 56 49.46 +14 40 30.4 q 160
2019-01-06 23:09:08 C 06 56 49.24 +14 40 31.0 q 160
2019-01-06 23:12:30 C 06 56 48.98 +14 40 31.5 q 160
2019-01-12 10:34:08 C 06 48 07.77 +15 18 39.3 V T05
2019-01-12 10:39:57 C 06 48 07.36 +15 18 40.5 V T05
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)