5645 (1990 SP)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3873146300 ± 1.01e-08
Semi-major axis (a)1.3545419449 AU ± 5.68e-10
Inclination (i)13.50517209° ± 2.14e-06
Long. of Asc. Node (Ω)45.70240895° ± 6.76e-06
Arg. of Perihelion (ω)48.28455414° ± 7.07e-06
Mean Anomaly (M)54.54806058° ± 1.90e-06
Mean Motion (n)0.6252066507°/day ± 3.94e-10
Perihelion dist (q)0.82990803 AU ± 1.37e-08
Aphelion dist (Q)1.87917586 AU ± 1.37e-08
Orbital Period1.57648080 yr ± 9.92e-10
Physical Parameters
H (abs. magnitude)17.23
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.239″
Uncertainty0
Orbit TypeApollo
MOID0.054890 AU
Observations Used1586
Radar Obs Used1
Gaia Obs Used22
Oppositions15
Arc Total1974-2024
First Observation Used1974-08-13
Last Observation Used2024-09-26
Observations (1904)
Date Type RA Dec Mag Band Observatory
2002-03-21 09:09:00 C 15 44 24.06 +12 49 05.7 15.9 c 704
2002-03-21 09:25:38 C 15 44 21.91 +12 48 54.0 16.6 c 704
2002-03-21 09:42:20 C 15 44 19.65 +12 48 44.0 16.0 c 704
2002-03-21 09:59:02 C 15 44 17.44 +12 48 33.3 16.1 c 704
2002-03-21 11:07:41 C 15 44 08.22 +12 47 50.1 d 711
2002-03-21 11:13:01 C 15 44 07.53 +12 47 46.4 d 711
2002-03-21 11:18:20 C 15 44 06.84 +12 47 42.9 d 711
2002-03-21 11:23:40 C 15 44 06.11 +12 47 39.3 d 711
2002-03-22 09:48:04 C 15 41 15.74 +12 32 39.4 16.7 c 704
2002-03-22 10:10:56 C 15 41 12.63 +12 32 23.4 16.7 c 704
2002-03-22 11:00:05 C 15 41 05.86 +12 31 50.4 16.5 c 704
2002-03-22 11:20:07 C 15 41 03.27 +12 31 37.1 16.3 c 704
2002-03-25 00:23:12 C 15 32 59.18 +11 49 04.2 c 084
2002-03-25 00:40:49 C 15 32 56.69 +11 48 52.4 c 084
2002-04-03 01:15:24 C 15 01 36.20 +09 00 59.3 c 084
2002-04-05 21:34:00 C 14 51 15.02 +08 02 56.1 d 557
2002-04-05 22:36:25 C 14 51 05.28 +08 02 02.6 d 557
2002-04-05 23:32:47 C 14 50 56.45 +08 01 14.1 d 557
2002-04-06 00:31:46 C 14 50 47.20 +08 00 23.2 d 557
2002-04-06 01:26:09 C 14 50 38.62 +07 59 35.8 d 557
2002-04-06 02:16:46 C 14 50 30.73 +07 58 52.1 d 557
2002-04-06 07:53:58 C 14 49 40.21 +07 54 05.6 16.5 c 704
2002-04-06 08:10:49 C 14 49 37.53 +07 53 51.2 16.2 c 704
2002-04-06 08:27:39 C 14 49 34.86 +07 53 36.3 16.2 c 704
2002-04-06 22:12:07 C 14 47 30.04 +07 41 31.5 c 215
2002-04-06 22:13:16 C 14 47 29.87 +07 41 30.6 c 215
2002-04-06 22:13:56 C 14 47 29.75 +07 41 30.1 c 215
2002-04-06 22:32:38 C 14 47 26.91 +07 41 13.0 c 127
2002-04-06 22:49:28 C 14 47 24.30 +07 40 58.1 c 127
2002-04-06 23:50:31 C 14 47 14.26 +07 40 02.2 c 084
2002-04-07 21:45:16 C 14 43 55.40 +07 20 49.3 d 557
2002-04-07 22:07:33 C 14 43 52.01 +07 20 29.6 c 127
2002-04-07 22:13:41 C 14 43 51.06 +07 20 24.6 c 127
2002-04-07 22:20:46 C 14 43 49.96 +07 20 18.2 c 127
2002-04-07 22:32:31 C 14 43 48.04 +07 20 08.0 d 557
2002-04-08 00:27:31 C 14 43 30.03 +07 18 26.9 d 557
2002-04-08 02:24:18 C 14 43 11.76 +07 16 43.5 d 557
2002-04-08 21:21:31 C 14 40 21.04 +06 59 54.5 d 557
2002-04-08 22:54:44 C 14 40 06.59 +06 58 31.9 d 557
2002-04-09 00:14:55 C 14 39 54.11 +06 57 20.9 d 557
2002-04-09 01:43:41 C 14 39 40.28 +06 56 01.6 d 557
2002-04-09 03:11:39 C 14 39 26.66 +06 54 43.1 d 557
2002-04-09 21:53:33 C 14 36 39.30 +06 38 00.5 d 557
2002-04-10 01:29:46 C 14 36 05.90 +06 34 47.4 d 557
2002-04-10 02:22:51 C 14 35 57.69 +06 33 59.5 d 557
2002-04-10 02:33:44 C 14 35 56.01 +06 33 49.7 d 557
2002-04-11 09:30:35 C 14 31 19.82 +06 06 05.2 15.4 d 644
2002-04-11 09:45:39 C 14 31 17.49 +06 05 51.6 15.3 d 644
2002-04-11 10:02:31 C 14 31 14.89 +06 05 36.3 15.4 d 644
2002-04-15 08:28:39 C 14 17 36.61 +04 39 54.2 c 699
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2020-10-15 15:20:00 87074.9 0.4 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)