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
2012-07-17 09:01:55 C 22 41 47.67 +52 49 54.0 u H21
2012-07-17 09:03:17 C 22 41 50.55 +52 50 20.3 u H21
2012-07-17 09:04:26 C 22 41 52.97 +52 50 42.2 u H21
2012-07-17 09:05:35 C 22 41 55.37 +52 51 04.2 u H21
2012-07-18 01:17:42 C 23 21 28.42 +57 38 02.8 t B75
2012-07-18 01:18:15 C 23 21 29.96 +57 38 12.6 t B75
2012-07-18 01:18:50 C 23 21 31.46 +57 38 23.0 t B75
2012-07-18 01:19:23 C 23 21 33.41 +57 38 34.2 t B75
2012-07-18 01:19:56 C 23 21 34.51 +57 38 41.1 t B75
2012-07-18 01:20:30 C 23 21 36.44 +57 38 51.9 t B75
2012-07-18 01:21:04 C 23 21 37.81 +57 38 59.9 t B75
2012-07-18 01:21:37 C 23 21 39.38 +57 39 05.5 t B75
2012-07-18 01:22:10 C 23 21 40.81 +57 39 17.9 t B75
2012-07-18 01:22:42 C 23 21 42.26 +57 39 26.0 t B75
2012-07-18 01:24:44 C 23 21 47.05 +57 39 58.7 t 130
2012-07-18 01:26:55 C 23 21 52.92 +57 40 34.4 t 130
2012-07-18 01:28:53 C 23 21 58.14 +57 41 06.2 t 130
2012-07-18 01:30:50 C 23 22 03.47 +57 41 38.0 t 130
2012-07-18 02:04:57 C 23 23 35.24 +57 50 44.3 c A24
2012-07-18 02:05:20 C 23 23 36.22 +57 50 49.6 c A24
2012-07-18 02:05:41 C 23 23 37.11 +57 50 56.1 c A24
2012-07-18 02:06:04 C 23 23 38.15 +57 51 01.9 c A24
2012-07-18 02:06:26 C 23 23 39.19 +57 51 08.0 c A24
2012-07-18 02:06:48 C 23 23 40.13 +57 51 13.8 c A24
2012-07-18 07:52:18 C 23 40 11.00 +59 18 18.8 u H45
2012-07-18 07:53:47 C 23 40 15.20 +59 18 39.9 u H45
2012-07-18 07:54:19 C 23 40 16.79 +59 18 47.7 u H45
2012-07-18 07:54:57 C 23 40 18.61 +59 18 56.7 u H45
2012-07-18 07:55:52 C 23 40 21.33 +59 19 10.3 u H45
2012-07-18 07:56:59 C 23 40 24.51 +59 19 26.4 u H45
2012-07-18 07:57:51 C 23 40 27.04 +59 19 39.3 u H45
2012-07-18 07:59:09 C 23 40 30.80 +59 19 58.0 u H45
2012-07-18 08:00:12 C 23 40 33.85 +59 20 13.5 u H45
2012-07-18 08:01:46 C 23 40 38.39 +59 20 36.0 u H45
2012-07-18 08:51:15 C 23 43 06.34 +59 31 53.6 17.3 r 718
2012-07-18 08:52:28 C 23 43 09.98 +59 32 11.6 17.6 r 718
2012-07-18 08:53:43 C 23 43 13.51 +59 32 28.7 17.1 r 718
2012-07-18 08:54:16 C 23 43 09.23 +59 33 00.1 u H21
2012-07-18 08:54:56 C 23 43 17.28 +59 32 44.6 17.2 r 718
2012-07-18 08:58:38 C 23 43 21.98 +59 34 01.5 u H21
2012-07-18 09:02:31 C 23 43 33.32 +59 34 56.2 u H21
2012-07-18 09:06:09 C 23 43 43.90 +59 35 47.0 u H21
2012-07-18 09:09:46 C 23 43 54.53 +59 36 37.9 u H21
2012-07-18 09:13:24 C 23 44 05.18 +59 37 28.8 u H21
2012-07-18 09:15:49 C 23 44 12.28 +59 38 02.5 u H21
2012-07-18 09:18:14 C 23 44 19.34 +59 38 36.2 u H21
2012-07-19 00:00:51 C 00 31 55.64 +62 27 36.1 o B67
2012-07-19 00:04:45 C 00 32 08.79 +62 28 12.9 o B67
2012-07-19 00:08:38 C 00 32 21.95 +62 28 49.8 o B67
2012-07-19 01:47:38 C 00 37 57.92 +62 43 48.0 c A24
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)