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
2021-06-20 17:04:02 S 17 03 27.487 -68 47 24.72 – V C57
2021-06-20 17:04:02 s 1 -165598.39 1 +298977.41 3120.0 – C57
2021-06-20 17:14:02 S 17 03 29.095 -68 47 23.35 – V C57
2021-06-20 17:14:02 s 1 -165828.79 6 +298529.84 4760.0 – C57
2021-06-20 17:24:02 S 17 03 31.130 -68 47 23.86 – V C57
2021-06-20 17:24:02 s 1 -166058.61 4 +298081.24 4600.0 – C57
2021-06-20 17:34:02 S 17 03 32.772 -68 47 20.72 – V C57
2021-06-20 17:34:02 s 1 -166287.84 1 +297631.60 2640.0 – C57
2021-06-20 17:44:02 S 17 03 34.390 -68 47 18.92 – V C57
2021-06-20 17:44:02 s 1 -166516.47 5 +297180.93 8870.0 – C57
2021-06-20 17:54:02 S 17 03 36.310 -68 47 16.40 – V C57
2021-06-20 17:54:02 s 1 -166744.51 5 +296729.24 3300.0 – C57
2021-06-20 18:04:02 S 17 03 38.222 -68 47 15.11 – V C57
2021-06-20 18:04:02 s 1 -166971.95 7 +296276.50 5900.0 – C57
2021-06-20 18:24:02 S 17 03 41.760 -68 47 15.25 – V C57
2021-06-20 18:24:02 s 1 -167425.04 3 +295367.93 5630.0 – C57
2021-06-20 18:34:02 S 17 03 43.392 -68 47 13.49 – V C57
2021-06-20 18:34:02 s 1 -167650.68 1 +294912.09 2740.0 – C57
2021-06-20 18:44:02 S 17 03 45.120 -68 47 13.09 – V C57
2021-06-20 18:44:02 s 1 -167875.71 4 +294455.21 8010.0 – C57
2021-06-20 18:54:02 S 17 03 47.126 -68 47 11.36 – V C57
2021-06-20 18:54:02 s 1 -168100.13 9 +293997.30 1420.0 – C57
2021-06-20 19:04:02 S 17 03 48.502 -68 47 09.46 – V C57
2021-06-20 19:04:02 s 1 -168323.95 4 +293538.34 2980.0 – C57
2021-06-20 19:14:02 S 17 03 50.359 -68 47 09.92 – V C57
2021-06-20 19:14:02 s 1 -168547.15 6 +293078.35 2680.0 – C57
2021-06-20 19:24:02 S 17 03 52.385 -68 47 08.09 – V C57
2021-06-20 19:24:02 s 1 -168769.74 3 +292617.31 500.0 – C57
2021-06-20 19:34:02 S 17 03 53.950 -68 47 06.58 – V C57
2021-06-20 19:34:02 s 1 -168991.71 4 +292155.24 6450.0 – C57
2021-06-20 19:54:02 S 17 03 57.180 -68 47 03.70 – V C57
2021-06-20 19:54:02 s 1 -169433.79 5 +291227.96 2700.0 – C57
2021-06-20 20:04:02 S 17 03 59.290 -68 47 02.11 – V C57
2021-06-20 20:04:02 s 1 -169653.90 2 +290762.75 2980.0 – C57
2021-06-20 20:14:02 S 17 04 01.207 -68 47 00.42 – V C57
2021-06-20 20:14:02 s 1 -169873.38 2 +290296.50 1350.0 – C57
2021-06-20 20:24:02 S 17 04 02.906 -68 46 58.87 – V C57
2021-06-20 20:24:02 s 1 -170092.23 3 +289829.20 7820.0 – C57
2021-06-20 20:44:02 S 17 04 06.269 -68 46 57.54 – V C57
2021-06-20 20:44:02 s 1 -170528.04 3 +288891.46 5000.0 – C57
2021-06-20 20:54:02 S 17 04 07.956 -68 46 56.75 – V C57
2021-06-20 20:54:02 s 1 -170744.99 5 +288421.02 5690.0 – C57
2021-06-20 21:04:02 S 17 04 09.886 -68 46 55.67 – V C57
2021-06-20 21:04:02 s 1 -170961.31 0 +287949.53 4450.0 – C57
2021-06-20 21:14:02 S 17 04 11.746 -68 46 53.80 – V C57
2021-06-20 21:14:02 s 1 -171176.98 5 +287476.98 1270.0 – C57
2021-06-20 21:34:02 S 17 04 15.082 -68 46 51.56 – V C57
2021-06-20 21:34:02 s 1 -171606.40 5 +286528.74 9040.0 – C57
2021-06-20 21:44:02 S 17 04 16.548 -68 46 49.80 – V C57
2021-06-20 21:44:02 s 1 -171820.14 5 +286053.04 9980.0 – 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)