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
2021-06-19 19:24:02 S 16 59 35.501 -68 50 02.72 – V C57
2021-06-19 19:24:02 s 1 -131342.31 1 +348675.53 8180.0 – C57
2021-06-19 19:34:02 S 16 59 37.548 -68 50 00.89 – V C57
2021-06-19 19:34:02 s 1 -131633.75 6 +348355.61 8210.0 – C57
2021-06-19 19:44:02 S 16 59 39.019 -68 49 59.12 – V C57
2021-06-19 19:44:02 s 1 -131924.83 1 +348034.75 7070.0 – C57
2021-06-19 19:54:02 S 16 59 41.110 -68 49 58.12 – V C57
2021-06-19 19:54:02 s 1 -132215.53 5 +347712.95 4770.0 – C57
2021-06-19 20:04:02 S 16 59 42.862 -68 49 56.68 – V C57
2021-06-19 20:04:02 s 1 -132505.86 7 +347390.20 1300.0 – C57
2021-06-19 20:14:02 S 16 59 44.482 -68 49 55.70 – V C57
2021-06-19 20:14:02 s 1 -132795.82 5 +347066.52 6660.0 – C57
2021-06-19 20:24:02 S 16 59 46.375 -68 49 54.52 – V C57
2021-06-19 20:24:02 s 1 -133085.40 7 +346741.89 850.0 – C57
2021-06-19 20:34:02 S 16 59 48.367 -68 49 53.04 – V C57
2021-06-19 20:34:02 s 1 -133374.61 4 +346416.31 3850.0 – C57
2021-06-19 20:44:02 S 16 59 49.812 -68 49 49.94 – V C57
2021-06-19 20:44:02 s 1 -133663.44 2 +346089.79 5660.0 – C57
2021-06-19 20:54:02 S 16 59 52.013 -68 49 51.35 – V C57
2021-06-19 20:54:02 s 1 -133951.89 2 +345762.33 6290.0 – C57
2021-06-19 21:04:02 S 16 59 53.083 -68 49 51.64 – V C57
2021-06-19 21:04:02 s 1 -134239.96 0 +345433.92 5730.0 – C57
2021-06-19 21:54:02 S 17 00 01.788 -68 49 44.98 – V C57
2021-06-19 21:54:02 s 1 -135674.54 8 +343777.67 4890.0 – C57
2021-06-19 22:24:02 S 17 00 07.579 -68 49 39.86 – V C57
2021-06-19 22:24:02 s 1 -136530.64 7 +342772.54 7830.0 – C57
2021-06-19 22:34:02 S 17 00 09.670 -68 49 39.32 – V C57
2021-06-19 22:34:02 s 1 -136815.22 9 +342435.60 6360.0 – C57
2021-06-19 22:44:02 S 17 00 11.402 -68 49 37.13 – V C57
2021-06-19 22:44:02 s 1 -137099.41 6 +342097.70 3650.0 – C57
2021-06-19 22:54:02 S 17 00 13.378 -68 49 36.95 – V C57
2021-06-19 22:54:02 s 1 -137383.20 8 +341758.85 9710.0 – C57
2021-06-19 23:14:02 S 17 00 16.855 -68 49 32.48 – V C57
2021-06-19 23:14:02 s 1 -137949.59 9 +341078.30 8110.0 – C57
2021-06-19 23:24:02 S 17 00 18.650 -68 49 32.84 – V C57
2021-06-19 23:24:02 s 1 -138232.19 5 +340736.60 430.0 – C57
2021-06-19 23:34:02 S 17 00 20.287 -68 49 30.07 – V C57
2021-06-19 23:34:02 s 1 -138514.38 9 +340393.94 1510.0 – C57
2021-06-19 23:44:02 S 17 00 21.960 -68 49 28.13 – V C57
2021-06-19 23:44:02 s 1 -138796.18 0 +340050.32 1330.0 – C57
2021-06-19 23:54:02 S 17 00 23.935 -68 49 29.75 – V C57
2021-06-19 23:54:02 s 1 -139077.56 8 +339705.75 9880.0 – C57
2021-06-20 00:04:02 S 17 00 25.740 -68 49 27.12 – V C57
2021-06-20 00:04:02 s 1 -139358.54 9 +339360.23 7180.0 – C57
2021-06-20 00:14:02 S 17 00 27.605 -68 49 26.65 – V C57
2021-06-20 00:14:02 s 1 -139639.12 3 +339013.75 3200.0 – C57
2021-06-20 00:24:02 S 17 00 29.218 -68 49 24.89 – V C57
2021-06-20 00:24:02 s 1 -139919.28 9 +338666.31 7950.0 – C57
2021-06-20 00:34:02 S 17 00 30.840 -68 49 23.41 – V C57
2021-06-20 00:34:02 s 1 -140199.04 4 +338317.91 1420.0 – 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)