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
2017-06-18 02:44:54 C 23 41 32.34 +01 26 44.7 q 160
2017-06-20 01:17:39 C 23 48 02.36 +03 20 58.1 q 160
2017-06-20 01:19:43 C 23 48 02.64 +03 21 03.4 q 160
2017-06-20 01:21:41 C 23 48 02.92 +03 21 08.5 q 160
2017-06-21 01:58:13 C 23 51 39.87 +04 25 08.8 q 160
2017-06-21 02:00:16 C 23 51 40.17 +04 25 14.2 q 160
2017-06-21 02:02:19 C 23 51 40.47 +04 25 19.5 q 160
2017-06-23 10:12:07 C 00 00 27.68 +07 01 28.3 q 703
2017-06-23 10:19:07 C 00 00 28.80 +07 01 48.7 q 703
2017-06-23 10:26:10 C 00 00 29.95 +07 02 09.2 q 703
2017-06-23 10:33:09 C 00 00 31.09 +07 02 29.8 q 703
2017-06-28 10:01:08 C 00 22 16.89 +13 25 32.5 q 703
2017-06-28 10:08:49 C 00 22 18.41 +13 25 59.4 q 703
2017-06-28 10:16:29 C 00 22 19.97 +13 26 27.1 q 703
2017-06-28 10:24:10 C 00 22 21.50 +13 26 53.4 q 703
2017-07-01 00:19:34 C 00 35 46.38 +17 14 23.5 U 089
2017-07-01 00:35:08 C 00 35 49.96 +17 15 23.1 U 089
2017-07-01 00:37:59 C 00 35 50.59 +17 15 34.5 U 089
2017-07-01 00:47:50 C 00 35 52.86 +17 16 12.3 U 089
2017-07-01 00:50:41 C 00 35 53.52 +17 16 23.0 U 089
2017-07-01 09:22:00 C 00 37 53.03 +17 49 18.0 q 703
2017-07-01 09:29:43 C 00 37 54.84 +17 49 48.0 q 703
2017-07-01 09:37:30 C 00 37 56.65 +17 50 18.4 q 703
2017-07-01 09:45:12 C 00 37 58.47 +17 50 48.6 q 703
2017-07-04 02:09:24 C 00 54 16.48 +22 10 35.2 q 160
2017-07-04 02:11:22 C 00 54 17.00 +22 10 43.4 q 160
2017-07-04 02:13:18 C 00 54 17.53 +22 10 51.6 q 160
2017-07-05 23:54:49 C 01 07 24.45 +25 25 43.8 q 089
2017-07-05 23:59:49 C 01 07 25.99 +25 26 05.0 q 089
2017-07-06 00:17:42 C 01 07 31.36 +25 27 23.0 q 089
2017-07-06 00:20:34 C 01 07 32.20 +25 27 35.2 q 089
2017-07-06 01:47:07 C 01 07 58.54 +25 33 52.4 q 160
2017-07-06 01:49:06 C 01 07 59.15 +25 34 01.1 q 160
2017-07-06 01:51:04 C 01 07 59.75 +25 34 09.6 q 160
2017-07-07 00:58:39 C 01 15 13.78 +27 15 27.5 q 160
2017-07-07 01:00:24 C 01 15 14.34 +27 15 35.4 q 160
2017-07-07 01:02:20 C 01 15 14.96 +27 15 43.9 q 160
2017-07-09 01:37:24 C 01 31 49.91 +30 51 52.6 q 160
2017-07-09 01:39:09 C 01 31 50.54 +30 52 00.4 q 160
2017-07-09 01:41:45 C 01 31 51.40 +30 52 11.7 q 160
2017-07-11 00:27:45 C 01 49 47.57 +34 20 40.1 q 089
2017-07-11 00:30:37 C 01 49 48.79 +34 20 52.2 q 089
2017-07-11 00:33:28 C 01 49 49.91 +34 21 05.7 q 089
2017-07-11 00:36:19 C 01 49 51.09 +34 21 18.1 q 089
2017-07-11 01:00:05 C 01 50 00.73 +34 23 03.6 q 089
2017-07-11 01:02:56 C 01 50 01.85 +34 23 15.7 q 089
2017-07-11 01:05:47 C 01 50 02.96 +34 23 29.3 q 089
2017-07-15 01:48:15 C 02 34 09.85 +41 11 15.1 q 160
2017-07-15 01:50:16 C 02 34 10.88 +41 11 23.0 q 160
2017-07-15 01:52:22 C 02 34 11.95 +41 11 31.2 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)