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
2021-05-23 05:24:02 S 14 50 09.065 -22 43 03.04 V C57
2021-05-23 05:24:02 s 1 -171926.52 1 +266622.66 7470.0 C57
2021-05-23 05:34:02 S 14 50 08.482 -22 42 55.19 V C57
2021-05-23 05:34:02 s 1 -172129.53 4 +266103.74 580.0 C57
2021-05-23 05:44:02 S 14 50 07.831 -22 42 57.31 V C57
2021-05-23 05:44:02 s 1 -172331.78 2 +265583.65 1660.0 C57
2021-05-23 06:14:02 S 14 50 04.692 -22 43 09.91 V C57
2021-05-23 06:14:02 s 1 -172933.90 4 +264016.40 2650.0 C57
2021-05-23 06:24:02 S 14 50 03.914 -22 43 08.18 V C57
2021-05-23 06:24:02 s 1 -173133.06 0 +263491.64 5530.0 C57
2021-05-23 06:34:02 S 14 50 02.558 -22 43 07.03 V C57
2021-05-23 06:34:02 s 1 -173331.43 6 +262965.71 6330.0 C57
2021-05-23 07:24:02 S 14 49 58.610 -22 43 16.86 V C57
2021-05-23 07:24:02 s 1 -174311.48 9 +260318.44 9030.0 C57
2021-05-23 07:44:02 S 14 49 56.988 -22 43 17.44 V C57
2021-05-23 07:44:02 s 1 -174697.93 1 +259251.30 3320.0 C57
2021-05-23 08:14:02 S 14 49 54.094 -22 43 19.81 V C57
2021-05-23 08:14:02 s 1 -175271.53 4 +257641.72 8720.0 C57
2021-05-23 08:34:02 S 14 49 52.006 -22 43 27.95 V C57
2021-05-23 08:34:02 s 1 -175649.85 8 +256562.74 1520.0 C57
2021-05-23 09:24:02 S 14 49 47.453 -22 43 32.02 V C57
2021-05-23 09:24:02 s 1 -176581.19 0 +253844.51 5240.0 C57
2021-05-23 10:04:02 S 14 49 44.093 -22 43 38.32 V C57
2021-05-23 10:04:02 s 1 -177311.13 8 +251648.45 250.0 C57
2021-05-23 10:24:02 S 14 49 42.338 -22 43 37.42 V C57
2021-05-23 10:24:02 s 1 -177670.99 5 +250543.23 4230.0 C57
2021-05-23 10:34:02 S 14 49 41.275 -22 43 41.09 V C57
2021-05-23 10:34:02 s 1 -177849.63 2 +249988.82 2820.0 C57
2021-05-23 11:04:02 S 14 49 38.623 -22 43 46.96 V C57
2021-05-23 11:04:02 s 1 -178380.33 0 +248318.38 4810.0 C57
2021-05-23 11:14:02 S 14 49 37.555 -22 43 48.43 V C57
2021-05-23 11:14:02 s 1 -178555.48 1 +247759.16 4190.0 C57
2021-05-23 11:24:02 S 14 49 36.749 -22 43 48.22 V C57
2021-05-23 11:24:02 s 1 -178729.75 0 +247198.72 1250.0 C57
2021-05-23 11:34:02 S 14 49 35.940 -22 43 46.85 V C57
2021-05-23 11:34:02 s 1 -178903.13 5 +246637.08 5980.0 C57
2021-05-23 11:44:02 S 14 49 34.913 -22 43 48.79 V C57
2021-05-23 11:44:02 s 1 -179075.63 2 +246074.23 8360.0 C57
2021-05-23 11:54:02 S 14 49 34.176 -22 43 52.75 V C57
2021-05-23 11:54:02 s 1 -179247.23 6 +245510.17 8400.0 C57
2021-05-23 12:04:02 S 14 49 33.439 -22 43 57.00 V C57
2021-05-23 12:04:02 s 1 -179417.94 5 +244944.90 6070.0 C57
2021-05-23 12:14:02 S 14 49 32.174 -22 44 00.24 V C57
2021-05-23 12:14:02 s 1 -179587.75 4 +244378.41 1370.0 C57
2021-05-23 12:24:02 S 14 49 31.469 -22 43 54.08 V C57
2021-05-23 12:24:02 s 1 -179756.65 9 +243810.71 4290.0 C57
2021-05-23 12:34:02 S 14 49 30.559 -22 43 56.71 V C57
2021-05-23 12:34:02 s 1 -179924.65 7 +243241.79 4820.0 C57
2021-05-23 12:44:02 S 14 49 29.647 -22 44 01.64 V C57
2021-05-23 12:44:02 s 1 -180091.74 4 +242671.66 2950.0 C57
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)