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
2024-09-16 20:09:53 C 15 21 18.274 +10 13 25.72 Z C23
2024-09-18 19:22:53 C 15 14 54.852 +11 25 57.54 Z C23
2024-09-18 19:27:13 C 15 14 54.250 +11 26 04.45 Z C23
2024-09-18 19:30:26 C 15 14 53.858 +11 26 09.49 Z C23
2024-09-19 05:56:02 C 15 13 27.098 +11 41 51.72 V T05
2024-09-19 06:00:36 C 15 13 26.477 +11 41 58.74 V T05
2024-09-19 06:27:59 C 15 13 22.668 +11 42 39.38 V T05
2024-09-19 06:41:08 C 15 13 20.794 +11 42 58.61 V T05
2024-09-20 19:13:34 C 15 08 12.235 +12 36 07.42 Z C23
2024-09-20 19:41:18 C 15 08 08.230 +12 36 47.59 Z C23
2024-09-21 03:41:04 C 15 06 59.155 +12 48 10.80 V U52
2024-09-21 03:45:14 C 15 06 58.625 +12 48 16.31 V U52
2024-09-21 03:49:25 C 15 06 57.982 +12 48 22.25 V U52
2024-09-22 02:17:59 C 15 03 41.274 +13 19 44.36 V 703
2024-09-22 02:21:18 C 15 03 40.774 +13 19 49.37 V 703
2024-09-22 02:24:37 C 15 03 40.316 +13 19 53.08 V 703
2024-09-22 02:27:56 C 15 03 39.791 +13 19 58.66 V 703
2024-10-01 03:24:03 C 14 27 30.175 +17 20 20.76 V U52
2024-10-01 03:28:15 C 14 27 29.381 +17 20 23.82 V U52
2024-10-01 03:32:24 C 14 27 28.613 +17 20 27.46 V U52
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)