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
2021-06-22 12:54:02 S 17 10 49.466 -68 42 42.59 – V C57
2021-06-22 12:54:02 s 1 -196779.54 1 +142733.59 4130.0 – C57
2021-06-22 13:04:02 S 17 10 51.154 -68 42 42.05 – V C57
2021-06-22 13:04:02 s 1 -196733.97 6 +141979.14 2150.0 – C57
2021-06-22 13:14:02 S 17 10 52.514 -68 42 40.43 – V C57
2021-06-22 13:14:02 s 1 -196686.58 5 +141223.39 4800.0 – C57
2021-06-22 13:24:02 S 17 10 54.070 -68 42 40.25 – V C57
2021-06-22 13:24:02 s 1 -196637.35 8 +140466.34 2050.0 – C57
2021-06-22 13:34:02 S 17 10 55.421 -68 42 39.20 – V C57
2021-06-22 13:34:02 s 1 -196586.28 6 +139707.99 3870.0 – C57
2021-06-22 13:54:02 S 17 10 58.565 -68 42 37.08 – V C57
2021-06-22 13:54:02 s 1 -196478.56 5 +138187.36 1100.0 – C57
2021-06-22 14:24:02 S 17 11 02.822 -68 42 33.95 – V C57
2021-06-22 14:24:02 s 1 -196302.88 8 +135896.63 500.0 – C57
2021-06-22 14:34:02 S 17 11 04.322 -68 42 32.94 – V C57
2021-06-22 14:34:02 s 1 -196240.52 9 +135130.45 9120.0 – C57
2021-06-22 14:44:02 S 17 11 05.798 -68 42 31.43 – V C57
2021-06-22 14:44:02 s 1 -196176.25 2 +134362.95 2110.0 – C57
2021-06-22 14:54:02 S 17 11 07.454 -68 42 31.10 – V C57
2021-06-22 14:54:02 s 1 -196110.04 7 +133594.15 9430.0 – C57
2021-06-22 15:04:02 S 17 11 09.019 -68 42 30.64 – V C57
2021-06-22 15:04:02 s 1 -196041.90 3 +132824.04 1060.0 – C57
2021-06-22 15:14:02 S 17 11 10.354 -68 42 29.34 – V C57
2021-06-22 15:14:02 s 1 -195971.80 9 +132052.62 6960.0 – C57
2021-06-22 15:34:02 S 17 11 13.258 -68 42 27.29 – V C57
2021-06-22 15:34:02 s 1 -195825.72 9 +130505.86 1440.0 – C57
2021-06-22 15:54:02 S 17 11 16.682 -68 42 25.09 – V C57
2021-06-22 15:54:02 s 1 -195671.71 7 +128953.87 2630.0 – C57
2021-06-22 16:24:02 S 17 11 20.686 -68 42 23.26 – V C57
2021-06-22 16:24:02 s 1 -195425.63 2 +126616.07 5190.0 – C57
2021-06-22 16:34:02 S 17 11 22.320 -68 42 22.28 – V C57
2021-06-22 16:34:02 s 1 -195339.54 0 +125834.19 4120.0 – C57
2021-06-22 16:44:02 S 17 11 23.712 -68 42 22.72 – V C57
2021-06-22 16:44:02 s 1 -195251.39 7 +125051.00 7030.0 – C57
2021-06-22 16:54:02 S 17 11 25.272 -68 42 20.88 – V C57
2021-06-22 16:54:02 s 1 -195161.19 2 +124266.50 3890.0 – C57
2021-06-22 17:04:02 S 17 11 26.638 -68 42 18.40 – V C57
2021-06-22 17:04:02 s 1 -195068.91 2 +123480.70 4660.0 – C57
2021-06-22 17:14:02 S 17 11 27.919 -68 42 17.82 – V C57
2021-06-22 17:14:02 s 1 -194974.54 6 +122693.58 9320.0 – C57
2021-06-22 17:24:02 S 17 11 29.390 -68 42 15.08 – V C57
2021-06-22 17:24:02 s 1 -194878.08 1 +121905.16 7820.0 – C57
2021-06-22 17:34:02 S 17 11 30.893 -68 42 15.37 – V C57
2021-06-22 17:34:02 s 1 -194779.50 6 +121115.43 130.0 – C57
2021-06-22 17:44:02 S 17 11 32.306 -68 42 14.54 – V C57
2021-06-22 17:44:02 s 1 -194678.80 8 +120324.39 6220.0 – C57
2021-06-22 17:54:02 S 17 11 33.778 -68 42 14.98 – V C57
2021-06-22 17:54:02 s 1 -194575.97 5 +119532.05 6060.0 – C57
2021-06-22 18:04:02 S 17 11 35.261 -68 42 11.38 – V C57
2021-06-22 18:04:02 s 1 -194470.99 4 +118738.40 9600.0 – 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)