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
2021-06-15 09:54:02 S 16 41 35.299 -69 04 17.69 – V C57
2021-06-15 09:54:02 s 1 +85233.531 0 +372432.78 4430.0 – C57
2021-06-15 10:04:02 S 16 41 36.655 -69 04 14.20 – V C57
2021-06-15 10:04:02 s 1 +84898.649 0 +372678.52 2460.0 – C57
2021-06-15 10:14:02 S 16 41 37.968 -69 04 11.50 – V C57
2021-06-15 10:14:02 s 1 +84563.551 0 +372923.31 80.0 – C57
2021-06-15 10:24:02 S 16 41 40.058 -69 04 12.79 – V C57
2021-06-15 10:24:02 s 1 +84228.238 0 +373167.13 7310.0 – C57
2021-06-15 10:34:02 S 16 41 41.222 -69 04 10.67 – V C57
2021-06-15 10:34:02 s 1 +83892.710 0 +373410.01 4130.0 – C57
2021-06-15 10:44:02 S 16 41 43.147 -69 04 09.62 – V C57
2021-06-15 10:44:02 s 1 +83556.970 0 +373651.92 560.0 – C57
2021-06-15 10:54:02 S 16 41 44.734 -69 04 09.01 – V C57
2021-06-15 10:54:02 s 1 +83221.017 0 +373892.88 6590.0 – C57
2021-06-15 11:04:02 S 16 41 45.936 -69 04 05.56 – V C57
2021-06-15 11:04:02 s 1 +82884.854 0 +374132.88 2230.0 – C57
2021-06-15 11:14:02 S 16 41 47.678 -69 04 05.09 – V C57
2021-06-15 11:14:02 s 1 +82548.481 0 +374371.93 7480.0 – C57
2021-06-15 11:24:02 S 16 41 49.414 -69 04 01.49 – V C57
2021-06-15 11:24:02 s 1 +82211.900 0 +374610.03 2340.0 – C57
2021-06-15 11:44:02 S 16 41 52.680 -69 04 01.31 – V C57
2021-06-15 11:44:02 s 1 +81538.117 0 +375083.37 930.0 – C57
2021-06-15 12:24:02 S 16 41 58.608 -69 03 52.88 – V C57
2021-06-15 12:24:02 s 1 +80188.099 0 +376018.62 3590.0 – C57
2021-06-15 12:54:02 S 16 42 03.792 -69 03 50.62 – V C57
2021-06-15 12:54:02 s 1 +79173.477 0 +376710.08 9230.0 – C57
2021-06-15 13:04:02 S 16 42 04.913 -69 03 49.86 – V C57
2021-06-15 13:04:02 s 1 +78834.873 0 +376938.67 400.0 – C57
2021-06-15 13:14:02 S 16 42 06.456 -69 03 45.14 – V C57
2021-06-15 13:14:02 s 1 +78496.074 0 +377166.32 1210.0 – C57
2021-06-15 13:24:02 S 16 42 08.302 -69 03 43.70 – V C57
2021-06-15 13:24:02 s 1 +78157.079 0 +377393.01 1660.0 – C57
2021-06-15 13:34:02 S 16 42 10.092 -69 03 41.40 – V C57
2021-06-15 13:34:02 s 1 +77817.891 0 +377618.76 1770.0 – C57
2021-06-15 13:44:02 S 16 42 11.566 -69 03 40.57 – V C57
2021-06-15 13:44:02 s 1 +77478.510 0 +377843.57 1530.0 – C57
2021-06-15 13:54:02 S 16 42 13.435 -69 03 40.50 – V C57
2021-06-15 13:54:02 s 1 +77138.937 0 +378067.43 940.0 – C57
2021-06-15 14:04:02 S 16 42 14.045 -69 03 40.72 – V C57
2021-06-15 14:04:02 s 1 +76799.173 0 +378290.34 20.0 – C57
2021-06-15 14:14:02 S 16 42 16.574 -69 03 36.97 – V C57
2021-06-15 14:14:02 s 1 +76459.221 0 +378512.31 8760.0 – C57
2021-06-15 14:24:02 S 16 42 17.849 -69 03 35.60 – V C57
2021-06-15 14:24:02 s 1 +76119.079 0 +378733.34 7160.0 – C57
2021-06-15 14:34:02 S 16 42 19.219 -69 03 34.96 – V C57
2021-06-15 14:34:02 s 1 +75778.751 0 +378953.42 5230.0 – C57
2021-06-15 17:34:02 S 16 42 48.670 -69 03 07.56 – V C57
2021-06-15 17:34:02 s 1 +69622.034 0 +382754.23 6680.0 – C57
2021-06-15 17:44:02 S 16 42 49.819 -69 03 05.54 – V C57
2021-06-15 17:44:02 s 1 +69278.350 0 +382956.49 8940.0 – 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)