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
2021-05-30 07:54:03 S 16 16 21.749 -67 31 52.68 – V C57
2021-05-30 07:54:03 s 1 +149105.27 3 +294751.10 2600.0 – C57
2021-05-30 08:34:03 S 16 16 24.742 -67 32 12.95 – V C57
2021-05-30 08:34:03 s 1 +148101.57 6 +296628.19 50.0 – C57
2021-05-30 08:54:03 S 16 16 25.843 -67 32 17.99 – V C57
2021-05-30 08:54:03 s 1 +147596.23 9 +297559.88 1050.0 – C57
2021-05-30 09:04:03 S 16 16 25.992 -67 32 26.45 – V C57
2021-05-30 09:04:03 s 1 +147342.70 8 +298024.01 4640.0 – C57
2021-05-30 09:14:03 S 16 16 27.050 -67 32 29.08 – V C57
2021-05-30 09:14:03 s 1 +147088.60 4 +298487.01 6960.0 – C57
2021-05-30 09:24:03 S 16 16 27.799 -67 32 33.36 – V C57
2021-05-30 09:24:03 s 1 +146833.93 0 +298948.86 8030.0 – C57
2021-05-30 10:14:03 S 16 16 30.578 -67 32 52.62 – V C57
2021-05-30 10:14:03 s 1 +145552.10 2 +301241.14 4670.0 – C57
2021-05-30 10:44:03 S 16 16 32.484 -67 33 06.05 – V C57
2021-05-30 10:44:03 s 1 +144776.32 4 +302602.93 1910.0 – C57
2021-05-30 11:24:03 S 16 16 35.021 -67 33 17.78 – V C57
2021-05-30 11:24:03 s 1 +143734.29 2 +304402.90 4690.0 – C57
2021-05-30 11:44:03 S 16 16 36.600 -67 33 26.75 – V C57
2021-05-30 11:44:03 s 1 +143210.03 6 +305296.16 3950.0 – C57
2021-05-30 12:54:03 S 16 16 40.853 -67 33 54.11 – V C57
2021-05-30 12:54:03 s 1 +141358.44 0 +308387.36 9640.0 – C57
2021-05-30 14:44:03 S 16 16 49.198 -67 34 35.40 – V C57
2021-05-30 14:44:03 s 1 +138397.78 6 +313135.16 1050.0 – C57
2021-05-30 15:04:03 S 16 16 49.169 -67 34 46.63 – V C57
2021-05-30 15:04:03 s 1 +137852.97 8 +313984.08 5260.0 – C57
2021-05-30 15:44:03 S 16 16 53.059 -67 35 03.48 – V C57
2021-05-30 15:44:03 s 1 +136757.49 9 +315668.77 880.0 – C57
2021-05-30 15:54:03 S 16 16 52.826 -67 35 10.61 – V C57
2021-05-30 15:54:03 s 1 +136482.42 1 +316087.21 7150.0 – C57
2021-05-30 16:24:03 S 16 16 54.972 -67 35 18.64 – V C57
2021-05-30 16:24:03 s 1 +135654.31 6 +317336.01 9720.0 – C57
2021-05-30 16:34:03 S 16 16 56.158 -67 35 24.72 – V C57
2021-05-30 16:34:03 s 1 +135377.33 2 +317750.09 1850.0 – C57
2021-05-30 16:44:03 S 16 16 55.702 -67 35 29.36 – V C57
2021-05-30 16:44:03 s 1 +135099.87 7 +318163.10 2940.0 – C57
2021-05-30 16:54:03 S 16 16 57.773 -67 35 30.37 – V C57
2021-05-30 16:54:03 s 1 +134821.95 2 +318575.01 3020.0 – C57
2021-05-30 17:04:03 S 16 16 57.401 -67 35 36.13 – V C57
2021-05-30 17:04:03 s 1 +134543.56 0 +318985.85 2090.0 – C57
2021-05-30 17:14:03 S 16 16 57.780 -67 35 41.21 – V C57
2021-05-30 17:14:03 s 1 +134264.70 3 +319395.60 140.0 – C57
2021-05-30 17:54:03 S 16 17 00.504 -67 35 58.34 – V C57
2021-05-30 17:54:03 s 1 +133144.66 1 +321023.80 2340.0 – C57
2021-05-30 19:14:03 S 16 17 05.873 -67 36 35.71 – V C57
2021-05-30 19:14:03 s 1 +130882.84 3 +324228.55 9680.0 – C57
2021-05-30 19:54:03 S 16 17 08.645 -67 36 46.76 – V C57
2021-05-30 19:54:03 s 1 +129741.31 4 +325805.23 5400.0 – C57
2021-05-30 23:44:03 S 16 17 24.161 -67 38 24.72 – V C57
2021-05-30 23:44:03 s 1 +123046.82 2 +334542.45 4970.0 – 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)