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
1993-08-31 00:24:14 C 15 38 12.12 +10 17 18.2 z 786
1993-08-31 00:30:09 C 15 38 10.88 +10 17 30.9 z 786
1993-09-01 20:49:27 C 15 29 00.02 +11 52 29.1 587
1993-09-01 20:58:30 C 15 28 58.27 +11 52 46.1 587
1993-09-04 19:19:14 C 15 14 59.14 +14 11 14.6 587
1993-09-04 19:25:30 C 15 14 57.92 +14 11 26.3 587
1993-09-04 19:32:19 C 15 14 56.52 +14 11 38.6 587
1994-05-02 14:18:16 C 13 03 34.18 -71 03 10.6 413
1994-05-02 14:26:18 C 13 03 33.14 -71 03 04.2 413
1995-06-05 16:54:55 C 19 02 04.55 -55 46 02.3 413
1995-06-05 17:02:11 C 19 02 03.76 -55 46 02.9 413
1995-06-08 19:20:53 C 18 55 23.98 -56 00 23.4 413
1995-06-08 19:28:10 C 18 55 23.31 -56 00 24.6 413
1995-06-19 15:32:20 C 18 28 29.09 -56 22 25.4 413
1995-06-19 15:36:41 C 18 28 28.60 -56 22 25.6 413
1995-07-06 13:41:53 C 17 42 11.80 -55 02 39.6 413
1995-07-06 13:47:58 C 17 42 11.17 -55 02 37.4 413
1996-05-03 02:45:38 C 07 03 32.32 -21 52 28.6 z 709
1996-05-03 02:49:30 C 07 03 32.90 -21 52 31.5 z 709
1996-05-03 02:52:27 C 07 03 33.64 -21 52 34.8 z 709
1996-05-03 02:56:29 C 07 03 34.36 -21 52 38.5 z 709
1996-05-03 03:01:28 C 07 03 35.27 -21 52 39.4 z 709
1996-05-03 03:04:33 C 07 03 35.68 -21 52 43.2 z 709
1996-05-03 03:09:14 C 07 03 36.72 -21 52 47.1 z 709
1996-05-03 03:12:41 C 07 03 37.48 -21 52 51.2 z 709
1996-05-28 09:17:04 C 08 40 34.71 -27 00 42.0 413
1996-05-28 09:20:45 C 08 40 35.23 -27 00 43.2 413
2001-01-20 06:58:47 C 15 48 43.51 -51 53 12.0 844
2001-01-20 07:02:21 C 15 48 43.55 -51 53 18.9 844
2001-01-20 07:11:26 C 15 48 43.66 -51 53 36.4 844
2003-06-11 08:11:01 C 07 41 16.61 +03 18 13.0 c E14
2003-06-11 08:21:14 C 07 41 18.58 +03 17 56.5 c E14
2003-06-11 08:31:26 C 07 41 20.43 +03 17 39.8 c E14
2005-06-02 16:50:19 C 22 13 11.09 -22 43 55.2 r E12
2005-06-02 17:02:35 C 22 13 11.67 -22 43 48.6 r E12
2005-06-02 17:27:09 C 22 13 12.69 -22 43 34.9 r E12
2005-06-23 10:49:08 C 22 32 54.45 -16 33 05.8 16.6 o 644
2005-06-23 11:07:10 C 22 32 55.02 -16 32 47.0 16.5 o 644
2005-06-23 11:21:26 C 22 32 55.47 -16 32 32.1 16.6 o 644
2005-07-03 09:14:13 C 22 40 20.19 -11 14 54.8 16.1 c 704
2005-07-03 09:29:33 C 22 40 20.58 -11 14 28.9 16.3 c 704
2005-07-03 09:44:55 C 22 40 20.96 -11 14 02.6 16.5 c 704
2005-07-03 10:00:07 C 22 40 21.31 -11 13 37.0 16.7 c 704
2005-07-03 10:15:17 C 22 40 21.67 -11 13 10.7 16.4 c 704
2005-07-07 08:24:55 C 22 42 50.95 -08 10 44.2 o 699
2005-07-07 08:51:13 C 22 42 51.54 -08 09 46.9 o 699
2005-07-07 09:17:33 C 22 42 52.09 -08 08 49.2 o 699
2005-07-07 09:43:53 C 22 42 52.62 -08 07 51.4 o 699
2005-07-10 08:58:06 C 22 44 34.04 -05 14 24.5 r 703
2005-07-10 09:07:22 C 22 44 34.22 -05 13 59.6 r 703
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)