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
2021-06-11 18:54:03 S 16 29 36.226 -69 24 54.58 – V C57
2021-06-11 18:54:03 s 1 +180283.60 8 +90804.169 3450.0 – C57
2021-06-11 19:04:03 S 16 29 36.737 -69 24 48.64 – V C57
2021-06-11 19:04:03 s 1 +180446.87 7 +91692.419 3020.0 – C57
2021-06-11 19:14:03 S 16 29 38.710 -69 24 45.79 – V C57
2021-06-11 19:14:03 s 1 +180607.24 0 +92579.195 5250.0 – C57
2021-06-11 19:24:03 S 16 29 39.060 -69 24 38.27 – V C57
2021-06-11 19:24:03 s 1 +180764.71 7 +93464.493 190.0 – C57
2021-06-11 22:44:03 S 16 30 00.614 -69 23 23.42 – V C57
2021-06-11 22:44:03 s 1 +183337.18 8 +110856.96 4270.0 – C57
2021-06-11 22:54:03 S 16 30 01.766 -69 23 21.95 – V C57
2021-06-11 22:54:03 s 1 +183438.34 0 +111710.78 7390.0 – C57
2021-06-11 23:04:03 S 16 30 03.144 -69 23 18.28 – V C57
2021-06-11 23:04:03 s 1 +183537.00 0 +112563.08 4260.0 – C57
2021-06-11 23:24:03 S 16 30 04.622 -69 23 08.45 – V C57
2021-06-11 23:24:03 s 1 +183726.91 0 +114263.15 9420.0 – C57
2021-06-11 23:44:03 S 16 30 07.106 -69 23 00.71 – V C57
2021-06-11 23:44:03 s 1 +183907.04 7 +115957.16 80.0 – C57
2021-06-11 23:54:03 S 16 30 08.578 -69 22 59.30 – V C57
2021-06-11 23:54:03 s 1 +183993.48 9 +116801.88 6330.0 – C57
2021-06-12 00:04:03 S 16 30 09.576 -69 22 56.68 – V C57
2021-06-12 00:04:03 s 1 +184077.53 6 +117645.09 6580.0 – C57
2021-06-12 00:14:03 S 16 30 10.169 -69 22 49.84 – V C57
2021-06-12 00:14:03 s 1 +184159.20 1 +118486.78 870.0 – C57
2021-06-12 00:24:03 S 16 30 12.060 -69 22 45.52 – V C57
2021-06-12 00:24:03 s 1 +184238.50 0 +119326.96 9240.0 – C57
2021-06-12 00:34:03 S 16 30 12.845 -69 22 45.98 – V C57
2021-06-12 00:34:03 s 1 +184315.44 9 +120165.61 1730.0 – C57
2021-06-12 00:44:03 S 16 30 13.452 -69 22 40.26 – V C57
2021-06-12 00:44:03 s 1 +184390.06 2 +121002.74 8370.0 – C57
2021-06-12 00:54:03 S 16 30 14.482 -69 22 35.87 – V C57
2021-06-12 00:54:03 s 1 +184462.35 4 +121838.36 9220.0 – C57
2021-06-12 01:04:03 S 16 30 15.703 -69 22 33.17 – V C57
2021-06-12 01:04:03 s 1 +184532.33 9 +122672.45 4300.0 – C57
2021-06-12 01:14:03 S 16 30 16.543 -69 22 31.12 – V C57
2021-06-12 01:14:03 s 1 +184600.03 3 +123505.03 3660.0 – C57
2021-06-12 01:24:03 S 16 30 17.839 -69 22 27.12 – V C57
2021-06-12 01:24:03 s 1 +184665.45 0 +124336.09 7330.0 – C57
2021-06-12 01:34:03 S 16 30 19.063 -69 22 25.64 – V C57
2021-06-12 01:34:03 s 1 +184728.60 5 +125165.62 5350.0 – C57
2021-06-12 01:44:03 S 16 30 20.230 -69 22 19.88 – V C57
2021-06-12 01:44:03 s 1 +184789.51 0 +125993.64 7760.0 – C57
2021-06-12 01:54:03 S 16 30 21.530 -69 22 15.28 – V C57
2021-06-12 01:54:03 s 1 +184848.18 1 +126820.14 4590.0 – C57
2021-06-12 02:04:03 S 16 30 22.620 -69 22 14.02 – V C57
2021-06-12 02:04:03 s 1 +184904.63 2 +127645.11 5880.0 – C57
2021-06-12 02:24:03 S 16 30 25.123 -69 22 04.84 – V C57
2021-06-12 02:24:03 s 1 +185010.92 7 +129290.51 2000.0 – C57
2021-06-14 22:04:02 S 16 39 44.306 -69 06 10.91 – V C57
2021-06-14 22:04:02 s 1 +108380.85 6 +352498.20 5160.0 – 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)