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
2021-06-07 02:04:03 S 16 28 47.316 -69 06 36.07 – V C57
2021-06-07 02:04:03 s 1 -193090.78 3 +228766.86 2690.0 – C57
2021-06-07 02:24:03 S 16 28 48.281 -69 06 52.06 – V C57
2021-06-07 02:24:03 s 1 -193353.34 1 +227573.66 800.0 – C57
2021-06-07 02:34:03 S 16 28 48.821 -69 06 56.30 – V C57
2021-06-07 02:34:03 s 1 -193483.13 3 +226975.30 5580.0 – C57
2021-06-07 02:54:03 S 16 28 49.039 -69 07 06.17 – V C57
2021-06-07 02:54:03 s 1 -193739.72 0 +225775.09 6580.0 – C57
2021-06-07 03:24:03 S 16 28 50.638 -69 07 26.04 – V C57
2021-06-07 03:24:03 s 1 -194117.04 7 +223965.99 6450.0 – C57
2021-06-07 03:34:03 S 16 28 51.401 -69 07 32.38 – V C57
2021-06-07 03:34:03 s 1 -194240.79 1 +223360.60 3930.0 – C57
2021-06-07 03:54:03 S 16 28 52.613 -69 07 44.83 – V C57
2021-06-07 03:54:03 s 1 -194485.20 6 +222146.31 100.0 – C57
2021-06-07 04:04:03 S 16 28 53.383 -69 07 48.07 – V C57
2021-06-07 04:04:03 s 1 -194605.86 8 +221537.39 8760.0 – C57
2021-06-07 04:34:03 S 16 28 54.053 -69 08 09.89 – V C57
2021-06-07 04:34:03 s 1 -194961.61 8 +219703.58 6930.0 – C57
2021-06-07 04:44:03 S 16 28 54.838 -69 08 08.45 – V C57
2021-06-07 04:44:03 s 1 -195078.10 8 +219089.94 3670.0 – C57
2021-06-07 05:44:03 S 16 28 57.533 -69 08 50.06 – V C57
2021-06-07 05:44:03 s 1 -195754.74 5 +215383.23 470.0 – C57
2021-06-07 06:14:03 S 16 28 59.436 -69 09 08.60 – V C57
2021-06-07 06:14:03 s 1 -196078.51 7 +213513.82 7380.0 – C57
2021-06-07 06:24:03 S 16 28 59.215 -69 09 14.33 – V C57
2021-06-07 06:24:03 s 1 -196184.25 4 +212888.30 3460.0 – C57
2021-06-07 06:34:03 S 16 29 00.367 -69 09 19.94 – V C57
2021-06-07 06:34:03 s 1 -196288.89 1 +212261.58 6390.0 – C57
2021-06-07 06:44:03 S 16 29 00.751 -69 09 27.61 – V C57
2021-06-07 06:44:03 s 1 -196392.42 1 +211633.67 6180.0 – C57
2021-06-07 07:14:03 S 16 29 02.045 -69 09 46.55 – V C57
2021-06-07 07:14:03 s 1 -196696.32 6 +209742.76 6510.0 – C57
2021-06-07 07:24:03 S 16 29 01.802 -69 09 48.06 – V C57
2021-06-07 07:24:03 s 1 -196795.38 2 +209110.05 3560.0 – C57
2021-06-07 07:34:03 S 16 29 02.640 -69 09 57.67 – V C57
2021-06-07 07:34:03 s 1 -196893.30 8 +208476.15 7400.0 – C57
2021-06-07 07:44:03 S 16 29 03.749 -69 10 01.16 – V C57
2021-06-07 07:44:03 s 1 -196990.09 8 +207841.04 8000.0 – C57
2021-06-07 08:04:03 S 16 29 04.200 -69 10 12.90 – V C57
2021-06-07 08:04:03 s 1 -197180.25 0 +206567.21 9470.0 – C57
2021-06-07 08:24:03 S 16 29 04.877 -69 10 24.82 – V C57
2021-06-07 08:24:03 s 1 -197365.79 8 +205288.56 7850.0 – C57
2021-06-07 08:34:03 S 16 29 05.657 -69 10 32.41 – V C57
2021-06-07 08:34:03 s 1 -197456.83 2 +204647.43 2100.0 – C57
2021-06-07 08:44:03 S 16 29 06.490 -69 10 37.88 – V C57
2021-06-07 08:44:03 s 1 -197546.70 0 +204005.09 3040.0 – C57
2021-06-07 08:54:03 S 16 29 07.034 -69 10 45.66 – V C57
2021-06-07 08:54:03 s 1 -197635.39 6 +203361.53 650.0 – C57
2021-06-07 09:04:03 S 16 29 06.869 -69 10 51.53 – V C57
2021-06-07 09:04:03 s 1 -197722.91 5 +202716.77 4920.0 – 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)