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
2021-08-08 07:33:59 s 1 +173457.77 5 +100762.55 8060.0 – C57
2021-08-08 07:43:59 S 20 51 16.082 +34 49 24.20 – V C57
2021-08-08 07:43:59 s 1 +173553.14 7 +101650.29 5860.0 – C57
2021-08-08 07:53:59 S 20 51 16.385 +34 49 51.38 – V C57
2021-08-08 07:53:59 s 1 +173645.76 1 +102536.41 5120.0 – C57
2021-08-08 08:03:59 S 20 51 16.790 +34 50 18.28 – V C57
2021-08-08 08:03:59 s 1 +173735.63 8 +103420.89 5880.0 – C57
2021-08-08 09:33:59 S 20 51 20.194 +34 54 21.67 – V C57
2021-08-08 09:33:59 s 1 +174424.37 3 +111307.80 300.0 – C57
2021-08-08 09:43:59 S 20 51 20.494 +34 54 48.38 – V C57
2021-08-08 09:43:59 s 1 +174487.87 8 +112175.94 9340.0 – C57
2021-08-08 09:53:59 S 20 51 20.909 +34 55 15.56 – V C57
2021-08-08 09:53:59 s 1 +174548.84 3 +113042.42 520.0 – C57
2021-08-08 10:13:59 S 20 51 21.715 +34 56 09.78 – V C57
2021-08-08 10:13:59 s 1 +174663.22 1 +114770.47 9490.0 – C57
2021-08-08 11:43:59 S 20 51 25.406 +35 00 07.31 – V C57
2021-08-08 11:43:59 s 1 +175056.59 1 +122465.16 9470.0 – C57
2021-08-08 11:53:59 S 20 51 25.793 +35 00 33.48 – V C57
2021-08-08 11:53:59 s 1 +175088.36 6 +123311.87 340.0 – C57
2021-08-08 12:33:59 S 20 51 27.564 +35 02 19.43 – V C57
2021-08-08 12:33:59 s 1 +175192.32 0 +126682.25 2330.0 – C57
2021-08-08 13:33:59 S 20 51 30.125 +35 04 55.92 – V C57
2021-08-08 13:33:59 s 1 +175280.46 6 +131688.28 970.0 – C57
2021-08-08 13:43:59 S 20 51 30.677 +35 05 21.44 – V C57
2021-08-08 13:43:59 s 1 +175287.43 5 +132516.85 5240.0 – C57
2021-08-08 13:53:59 S 20 51 31.106 +35 05 48.70 – V C57
2021-08-08 13:53:59 s 1 +175292.23 6 +133343.76 2810.0 – C57
2021-08-08 15:13:59 S 20 51 34.836 +35 09 16.56 – V C57
2021-08-08 15:13:59 s 1 +175254.21 6 +139899.75 7740.0 – C57
2021-08-08 16:03:59 S 20 51 37.200 +35 11 24.61 – V C57
2021-08-08 16:03:59 s 1 +175163.47 4 +143943.78 1890.0 – C57
2021-08-08 16:23:59 S 20 51 38.129 +35 12 16.42 – V C57
2021-08-08 16:23:59 s 1 +175113.20 0 +145549.91 2500.0 – C57
2021-08-08 16:33:59 S 20 51 38.294 +35 12 43.70 – V C57
2021-08-08 16:33:59 s 1 +175085.11 8 +146350.51 8740.0 – C57
2021-08-08 17:03:59 S 20 51 40.147 +35 13 59.34 – V C57
2021-08-08 17:03:59 s 1 +174989.23 6 +148742.50 1640.0 – C57
2021-08-08 17:13:59 S 20 51 40.680 +35 14 24.50 – V C57
2021-08-08 17:13:59 s 1 +174953.43 7 +149536.55 4130.0 – C57
2021-08-08 17:33:59 S 20 51 41.666 +35 15 15.26 – V C57
2021-08-08 17:33:59 s 1 +174876.15 1 +151119.77 1620.0 – C57
2021-08-08 20:22:31 C 20 55 42.19 +35 13 30.0 – V 089
2021-08-08 20:25:49 C 20 55 42.46 +35 13 40.1 – V 089
2021-08-08 20:29:07 C 20 55 42.71 +35 13 49.8 – V 089
2021-08-08 20:32:25 C 20 55 42.98 +35 13 59.8 – V 089
2021-08-08 20:35:44 C 20 55 43.24 +35 14 09.8 – V 089
2021-08-08 20:39:02 C 20 55 43.49 +35 14 19.4 – V 089
2021-08-08 20:42:21 C 20 55 43.76 +35 14 29.6 – V 089
2021-08-08 20:45:40 C 20 55 44.02 +35 14 39.3 – V 089
2021-08-08 22:53:59 S 20 51 58.855 +35 28 40.19 – V 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)