IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-06-18 03:04:02 S 16 52 27.170 -68 55 09.80 – V C57
2021-06-18 03:04:02 s 1 -52666.124 0 +399396.60 6620.0 – C57
2021-06-18 03:14:02 S 16 52 29.090 -68 55 08.33 – V C57
2021-06-18 03:14:02 s 1 -53014.935 0 +399293.56 6950.0 – C57
2021-06-18 03:24:02 S 16 52 30.701 -68 55 07.03 – V C57
2021-06-18 03:24:02 s 1 -53363.620 0 +399189.66 6800.0 – C57
2021-06-18 03:34:02 S 16 52 32.647 -68 55 09.16 – V C57
2021-06-18 03:34:02 s 1 -53712.180 0 +399084.89 6170.0 – C57
2021-06-18 03:44:02 S 16 52 34.159 -68 55 07.03 – V C57
2021-06-18 03:44:02 s 1 -54060.612 0 +398979.25 5060.0 – C57
2021-06-18 03:54:02 S 16 52 35.806 -68 55 05.30 – V C57
2021-06-18 03:54:02 s 1 -54408.917 0 +398872.74 3470.0 – C57
2021-06-18 04:14:02 S 16 52 39.480 -68 55 02.50 – V C57
2021-06-18 04:14:02 s 1 -55105.139 0 +398657.12 8830.0 – C57
2021-06-18 04:24:02 S 16 52 41.436 -68 54 59.29 – V C57
2021-06-18 04:24:02 s 1 -55453.055 0 +398548.00 5780.0 – C57
2021-06-18 04:34:02 S 16 52 42.804 -68 54 58.36 – V C57
2021-06-18 04:34:02 s 1 -55800.840 0 +398438.01 2230.0 – C57
2021-06-18 04:44:02 S 16 52 44.705 -68 54 56.77 – V C57
2021-06-18 04:44:02 s 1 -56148.494 0 +398327.15 8190.0 – C57
2021-06-18 04:54:02 S 16 52 46.771 -68 54 56.30 – V C57
2021-06-18 04:54:02 s 1 -56496.014 0 +398215.42 3650.0 – C57
2021-06-18 05:04:02 S 16 52 48.226 -68 54 54.61 – V C57
2021-06-18 05:04:02 s 1 -56843.401 0 +398102.83 8610.0 – C57
2021-06-18 05:14:02 S 16 52 49.819 -68 54 54.54 – V C57
2021-06-18 05:14:02 s 1 -57190.654 0 +397989.36 3070.0 – C57
2021-06-18 05:24:02 S 16 52 51.370 -68 54 54.07 – V C57
2021-06-18 05:24:02 s 1 -57537.771 0 +397875.02 7030.0 – C57
2021-06-18 05:34:02 S 16 52 53.422 -68 54 51.52 – V C57
2021-06-18 05:34:02 s 1 -57884.752 0 +397759.81 480.0 – C57
2021-06-18 05:44:02 S 16 52 55.428 -68 54 50.22 – V C57
2021-06-18 05:44:02 s 1 -58231.596 0 +397643.73 3420.0 – C57
2021-06-18 05:54:02 S 16 52 56.957 -68 54 48.82 – V C57
2021-06-18 05:54:02 s 1 -58578.303 0 +397526.78 5860.0 – C57
2021-06-18 06:04:02 S 16 52 58.675 -68 54 47.02 – V C57
2021-06-18 06:04:02 s 1 -58924.871 0 +397408.96 7780.0 – C57
2021-06-18 06:14:02 S 16 53 00.130 -68 54 44.42 – V C57
2021-06-18 06:14:02 s 1 -59271.300 0 +397290.27 9180.0 – C57
2021-06-18 06:24:02 S 16 53 02.167 -68 54 45.18 – V C57
2021-06-18 06:24:02 s 1 -59617.588 0 +397170.70 70.0 – C57
2021-06-18 06:34:02 S 16 53 04.078 -68 54 45.61 – V C57
2021-06-18 06:34:02 s 1 -59963.735 0 +397050.27 440.0 – C57
2021-06-18 06:44:02 S 16 53 05.822 -68 54 43.06 – V C57
2021-06-18 06:44:02 s 1 -60309.741 0 +396928.96 280.0 – C57
2021-06-18 06:54:02 S 16 53 07.361 -68 54 40.93 – V C57
2021-06-18 06:54:02 s 1 -60655.604 0 +396806.78 9610.0 – C57
2021-06-18 07:04:02 S 16 53 09.312 -68 54 40.10 – V C57
2021-06-18 07:04:02 s 1 -61001.323 0 +396683.74 8400.0 – C57
2021-06-18 07:14:02 S 16 53 10.721 -68 54 37.87 – V C57
2021-06-18 07:14:02 s 1 -61346.898 0 +396559.82 6670.0 – C57
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)