5660 (1974 MA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7619876248 ± 1.39e-08
Semi-major axis (a)1.7855677359 AU ± 5.75e-10
Inclination (i)38.14409051° ± 1.85e-06
Long. of Asc. Node (Ω)302.10920117° ± 2.25e-06
Arg. of Perihelion (ω)127.05563510° ± 2.86e-06
Mean Anomaly (M)163.32307503° ± 1.20e-06
Mean Motion (n)0.4130929482°/day ± 1.99e-10
Perihelion dist (q)0.42498722 AU ± 2.48e-08
Aphelion dist (Q)3.14614825 AU ± 2.48e-08
Orbital Period2.38596734 yr ± 1.15e-09
Physical Parameters
H (abs. magnitude)15.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.111″
Uncertainty0
Orbit TypeApollo
MOID0.162108 AU
Observations Used510
Radar Obs Used2
Gaia Obs Used51
Oppositions25
Arc Total1974-2024
First Observation Used1974-06-26
Last Observation Used2024-10-01
Observations (570)
Date Type RA Dec Mag Band Observatory
2012-07-08 06:10:04 C 19 47 21.53 -43 09 21.2 u 844
2012-08-31 02:03:06 C 17 00 02.18 -23 54 40.9 u H21
2012-08-31 02:08:18 C 17 00 01.95 -23 54 34.0 u H21
2012-08-31 02:13:47 C 17 00 01.64 -23 54 27.9 u H21
2012-09-02 05:26:22 c 16 57 36.606 -22 52 59.21 L F51
2012-09-02 05:42:55 c 16 57 35.827 -22 52 39.39 L F51
2013-03-01 08:06:33 C 15 41 27.80 -69 12 40.0 u 807
2013-03-01 08:11:30 C 15 41 27.60 -69 12 44.4 u 807
2013-03-01 08:16:27 C 15 41 27.39 -69 12 48.9 u 807
2013-03-01 08:21:27 C 15 41 27.18 -69 12 53.3 u 807
2013-03-01 08:26:25 C 15 41 26.97 -69 12 57.6 u 807
2014-08-08 01:06:29 C 16 26 41.05 -48 37 52.3 u 807
2014-08-08 01:14:08 C 16 26 40.93 -48 37 47.4 u 807
2014-08-08 01:23:20 C 16 26 40.71 -48 37 41.3 u 807
2017-05-27 10:24:54 C 22 47 04.37 -12 47 35.2 q 703
2017-05-27 10:27:49 C 22 47 04.64 -12 47 32.2 q 703
2017-05-27 10:30:44 C 22 47 04.93 -12 47 29.6 q 703
2017-05-27 10:33:40 C 22 47 05.20 -12 47 26.3 q 703
2017-06-02 00:15:48 S 22 58 58.358 -10 02 20.62 L C51
2017-06-02 03:24:18 S 22 59 15.850 -09 58 08.87 L C51
2017-06-02 12:49:48 S 23 00 08.48 -09 45 23.5 L C51
2017-06-02 12:49:59 S 23 00 08.52 -09 45 23.7 L C51
2017-06-02 15:58:29 S 23 00 26.13 -09 41 06.0 L C51
2017-06-03 01:23:59 S 23 01 19.33 -09 28 07.9 L C51
2017-06-03 01:24:10 S 23 01 19.30 -09 28 07.0 L C51
2017-06-03 04:32:40 S 23 01 37.08 -09 23 46.9 L C51
2017-06-03 06:06:55 S 23 01 45.97 -09 21 35.3 L C51
2017-06-03 07:41:10 S 23 01 54.88 -09 19 25.2 L C51
2017-06-03 09:15:26 S 23 02 03.73 -09 17 13.1 L C51
2017-06-03 13:58:10 S 23 02 30.64 -09 10 35.6 L C51
2017-06-03 13:58:22 S 23 02 30.68 -09 10 35.3 L C51
2017-06-03 15:32:36 S 23 02 39.60 -09 08 22.7 L C51
2017-06-03 17:06:51 S 23 02 48.56 -09 06 09.5 L C51
2017-06-03 18:41:06 S 23 02 57.55 -09 03 56.2 L C51
2017-06-03 20:15:21 S 23 03 06.55 -09 01 42.6 L C51
2017-06-03 21:49:37 S 23 03 15.58 -08 59 29.7 L C51
2017-06-03 23:23:52 S 23 03 24.60 -08 57 15.2 L C51
2017-06-04 02:32:21 S 23 03 42.69 -08 52 45.6 L C51
2017-06-04 04:06:48 S 23 03 51.69 -08 50 30.1 L C51
2017-06-04 05:41:02 S 23 04 00.74 -08 48 15.1 L C51
2017-06-04 07:15:17 S 23 04 09.86 -08 45 59.0 L C51
2017-06-04 13:32:18 S 23 04 46.092 -08 36 55.01 L C51
2017-06-04 16:40:48 S 23 05 04.56 -08 32 19.8 L C51
2017-06-04 19:49:29 S 23 05 22.80 -08 27 44.8 L C51
2017-06-04 22:57:59 S 23 05 41.10 -08 23 08.1 L C51
2017-06-05 02:06:29 S 23 05 59.462 -08 18 29.20 L C51
2017-06-05 11:32:10 S 23 06 54.92 -08 04 29.0 L C51
2017-06-05 14:40:40 S 23 07 13.49 -07 59 48.0 L C51
2017-06-18 02:42:06 C 23 41 31.88 +01 26 38.2 q 160
2017-06-18 02:43:29 C 23 41 32.13 +01 26 41.5 q 160
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-07-25 06:18:00 285236.8573 1.5 Hz 2380 -1 -1
2005-07-25 07:10:00 224161128.6 5 us 2380 -1 -1
2005-07-25.262500 28523686 150 Hz 2380 251 251
2005-07-25.298611 22416112860 5000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)