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
2002-04-15 08:57:01 C 14 17 32.51 +04 39 28.3 c 699
2002-04-15 09:25:21 C 14 17 28.22 +04 39 02.7 c 699
2002-04-15 09:53:42 C 14 17 24.15 +04 38 37.0 c 699
2002-04-15 21:43:11 C 14 15 46.26 +04 27 46.8 d 557
2002-04-15 21:54:56 C 14 15 44.61 +04 27 36.3 d 557
2002-04-15 22:45:19 C 14 15 37.38 +04 26 50.6 d 557
2002-04-15 22:57:04 C 14 15 35.69 +04 26 40.0 d 557
2002-04-16 00:24:21 C 14 15 23.18 +04 25 20.3 d 557
2002-04-16 01:19:07 C 14 15 15.36 +04 24 30.8 d 557
2002-04-16 02:16:37 C 14 15 07.17 +04 23 38.4 d 557
2002-04-16 07:38:02 C 14 14 23.57 +04 18 51.9 15.9 c 704
2002-04-16 07:57:41 C 14 14 20.70 +04 18 34.3 15.7 c 704
2002-04-16 08:17:58 C 14 14 17.78 +04 18 16.1 15.9 c 704
2002-04-16 08:37:55 C 14 14 14.91 +04 17 57.9 15.8 c 704
2002-04-16 08:58:31 C 14 14 11.97 +04 17 39.2 15.7 c 704
2002-04-17 06:23:51 C 14 11 17.45 +03 58 12.6 16.4 c 704
2002-04-17 06:43:12 C 14 11 14.73 +03 57 55.2 16.6 c 704
2002-04-17 07:03:31 C 14 11 11.87 +03 57 36.8 16.7 c 704
2002-04-17 07:23:13 C 14 11 09.08 +03 57 18.9 16.5 c 704
2002-04-17 07:42:34 C 14 11 06.37 +03 57 01.4 16.7 c 704
2002-04-21 19:55:18 C 13 57 14.98 +02 19 58.2 d 557
2002-04-21 20:06:04 C 13 57 13.62 +02 19 49.0 d 557
2002-04-22 06:44:59 C 13 55 56.42 +02 10 30.5 16.8 c 704
2002-04-22 07:04:16 C 13 55 54.00 +02 10 12.8 17.0 c 704
2002-04-22 07:23:23 C 13 55 51.62 +02 09 56.3 16.5 c 704
2002-04-22 07:43:37 C 13 55 49.10 +02 09 38.7 16.4 c 704
2002-04-23 07:28:53 C 13 53 02.22 +01 48 50.2 15.7 c 644
2002-04-23 08:03:09 C 13 52 58.05 +01 48 20.2 16.4 c 644
2002-04-23 08:51:19 C 13 52 52.19 +01 47 38.4 17.9 c 644
2002-05-02 04:50:46 C 13 31 54.10 -01 08 15.2 c 699
2002-05-02 05:13:44 C 13 31 52.08 -01 08 33.0 c 699
2002-05-02 05:36:46 C 13 31 50.01 -01 08 52.8 c 699
2002-05-02 05:59:50 C 13 31 48.07 -01 09 09.9 c 699
2002-05-02 21:32:23 C 13 30 32.45 -01 21 20.1 d 557
2002-05-02 21:35:06 C 13 30 32.20 -01 21 21.9 d 557
2002-05-02 23:32:03 C 13 30 22.48 -01 22 52.8 d 557
2002-05-03 04:36:22 C 13 29 59.20 -01 26 42.2 m 333
2002-05-03 05:10:37 C 13 29 56.36 -01 27 08.3 m 333
2002-05-03 05:44:19 C 13 29 53.58 -01 27 34.6 m 333
2002-05-03 21:58:58 C 13 28 37.93 -01 40 07.9 d 557
2002-05-03 23:31:37 C 13 28 30.58 -01 41 18.4 d 557
2002-05-07 04:44:36 C 13 23 06.91 -02 38 45.9 16.9 c 644
2002-05-07 05:15:14 C 13 23 04.84 -02 39 08.2 16.7 c 644
2002-05-07 05:43:31 C 13 23 02.90 -02 39 28.8 16.8 c 644
2002-05-07 20:37:54 C 13 22 06.55 -02 50 20.3 d 557
2002-05-07 21:20:20 C 13 22 03.76 -02 50 50.6 d 557
2002-05-07 21:49:03 C 13 22 01.90 -02 51 11.4 d 557
2002-05-07 23:04:43 C 13 21 57.01 -02 52 05.8 d 557
2002-05-07 23:58:33 C 13 21 53.55 -02 52 44.5 d 557
2002-05-08 05:14:12 C 13 21 34.82 -02 56 28.1 17.8 c 704
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)