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
2024-07-29 12:16:12 C 19 04 57.790 -29 22 49.01 V E62
2024-07-29 12:36:50 C 19 04 52.409 -29 22 21.90 V E62
2024-07-30 03:47:17 C 19 01 01.363 -29 02 04.60 V W68
2024-07-30 03:52:32 C 19 00 59.998 -29 01 57.36 V W68
2024-07-30 04:01:06 C 19 00 57.768 -29 01 45.62 V W68
2024-07-30 04:16:44 C 19 00 53.693 -29 01 24.17 V W68
2024-07-31 01:52:47 B 18 55 22.84 -28 31 08.2 Z X33
2024-07-31 01:55:05 B 18 55 22.29 -28 31 05.9 Z X33
2024-07-31 01:57:07 B 18 55 21.68 -28 31 02.9 Z X33
2024-08-01 21:02:57 C 18 44 13.699 -27 25 07.07 V M22
2024-08-01 21:15:45 C 18 44 10.306 -27 24 46.55 V M22
2024-08-01 21:33:38 C 18 44 05.575 -27 24 17.68 V M22
2024-08-08 02:52:19 C 18 05 31.910 -22 47 12.12 V W68
2024-08-08 02:56:22 C 18 05 30.866 -22 47 03.80 V W68
2024-08-08 03:03:42 C 18 05 28.978 -22 46 48.43 V W68
2024-08-08 03:32:48 C 18 05 21.478 -22 45 47.66 V W68
2024-08-08 19:54:39 C 18 01 14.59 -22 11 46.1 V G17
2024-08-08 19:57:31 C 18 01 13.87 -22 11 40.1 V G17
2024-08-08 20:03:14 C 18 01 12.42 -22 11 27.7 V G17
2024-08-08 20:06:05 C 18 01 11.67 -22 11 22.0 V G17
2024-08-11 02:04:05 C 17 47 51.252 -20 13 23.45 V W68
2024-08-11 02:31:56 C 17 47 44.347 -20 12 20.95 V W68
2024-08-11 02:49:52 C 17 47 39.914 -20 11 40.74 V W68
2024-08-11 19:31:38 C 17 43 38.63 -19 34 30.3 X G02
2024-08-11 19:37:48 C 17 43 37.13 -19 34 16.5 X G02
2024-08-11 19:43:41 C 17 43 35.71 -19 34 03.4 X G02
2024-08-12 01:16:12 C 17 42 16.226 -19 21 07.99 V W68
2024-08-12 01:28:57 C 17 42 13.118 -19 20 39.05 V W68
2024-08-12 01:43:08 C 17 42 09.655 -19 20 06.76 V W68
2024-08-12 19:30:50 C 17 37 56.626 -18 39 27.50 V M22
2024-08-12 19:35:22 C 17 37 55.541 -18 39 16.88 V M22
2024-08-12 19:46:07 C 17 37 52.949 -18 38 52.26 V M22
2024-08-12 20:00:25 C 17 37 49.514 -18 38 19.43 V M22
2024-08-16 21:14:42 C 17 15 55.010 -14 50 38.90 V M22
2024-08-16 21:16:00 C 17 15 54.742 -14 50 35.48 V M22
2024-08-16 21:56:19 C 17 15 45.948 -14 48 59.51 V M22
2024-08-17 19:39:32 C 17 11 09.85 -13 57 55.6 M32
2024-08-17 19:40:28 C 17 11 09.69 -13 57 53.3 M32
2024-08-17 19:41:51 C 17 11 09.38 -13 57 49.8 M32
2024-08-17 19:42:19 C 17 11 09.28 -13 57 48.8 M32
2024-08-17 19:42:47 C 17 11 09.21 -13 57 48.3 M32
2024-08-17 19:43:43 C 17 11 09.02 -13 57 45.5 M32
2024-08-17 19:44:11 C 17 11 08.93 -13 57 44.6 M32
2024-08-17 19:44:38 C 17 11 08.79 -13 57 43.3 M32
2024-08-17 19:45:07 C 17 11 08.73 -13 57 42.4 M32
2024-08-17 22:05:04 C 17 10 38.808 -13 51 45.32 V M22
2024-08-17 22:50:12 C 17 10 29.294 -13 49 57.47 V M22
2024-08-17 22:56:25 C 17 10 27.974 -13 49 42.71 V M22
2024-08-18 19:55:58 C 17 06 08.050 -12 59 59.60 V M22
2024-08-18 20:00:31 C 17 06 07.099 -12 59 48.80 V M22
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)