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
2021-08-05 00:56:26 V 20 46 12.03 +29 48 04.1 12.8 V 247
2021-08-05 00:56:26 v 1 358.77189 +51.76602 – – 247
2021-08-05 00:58:25 V 20 46 12.10 +29 48 12.8 12.8 V 247
2021-08-05 00:58:25 v 1 358.77189 +51.76602 – – 247
2021-08-05 00:59:24 V 20 46 12.18 +29 48 16.3 12.8 V 247
2021-08-05 00:59:24 v 1 358.77189 +51.76602 – – 247
2021-08-05 01:03:59 S 20 48 01.051 +29 18 22.75 – V C57
2021-08-05 01:03:59 s 1 -189665.42 0 +57601.558 4400.0 – C57
2021-08-05 01:13:59 S 20 48 02.510 +29 19 11.17 – V C57
2021-08-05 01:13:59 s 1 -189386.37 5 +56754.297 40.0 – C57
2021-08-05 01:23:59 S 20 48 03.938 +29 19 59.95 – V C57
2021-08-05 01:23:59 s 1 -189104.25 1 +55906.119 5870.0 – C57
2021-08-05 01:33:59 S 20 48 05.417 +29 20 49.09 – V C57
2021-08-05 01:33:59 s 1 -188819.02 8 +55057.031 1840.0 – C57
2021-08-05 01:43:59 S 20 48 06.854 +29 21 36.90 – V C57
2021-08-05 01:43:59 s 1 -188530.68 7 +54207.040 7890.0 – C57
2021-08-05 02:03:59 S 20 48 09.720 +29 23 14.42 – V C57
2021-08-05 02:03:59 s 1 -187944.57 6 +52504.379 9980.0 – C57
2021-08-05 02:13:59 S 20 48 11.186 +29 24 04.10 – V C57
2021-08-05 02:13:59 s 1 -187646.76 8 +51651.723 5910.0 – C57
2021-08-05 02:23:59 S 20 48 12.619 +29 24 52.16 – V C57
2021-08-05 02:23:59 s 1 -187345.76 6 +50798.194 1670.0 – C57
2021-08-05 02:33:59 S 20 48 14.146 +29 25 42.35 – V C57
2021-08-05 02:33:59 s 1 -187041.55 0 +49943.800 7220.0 – C57
2021-08-05 02:43:59 S 20 48 15.547 +29 26 31.06 – V C57
2021-08-05 02:43:59 s 1 -186734.10 1 +49088.548 2470.0 – C57
2021-08-05 02:53:59 S 20 48 17.006 +29 27 20.16 – V C57
2021-08-05 02:53:59 s 1 -186423.39 8 +48232.447 7390.0 – C57
2021-08-05 03:03:59 S 20 48 18.403 +29 28 08.58 – V C57
2021-08-05 03:03:59 s 1 -186109.42 3 +47375.506 1890.0 – C57
2021-08-05 03:23:59 S 20 48 21.259 +29 29 46.00 – V C57
2021-08-05 03:23:59 s 1 -185471.57 0 +45659.134 9420.0 – C57
2021-08-05 03:33:59 S 20 48 22.661 +29 30 35.57 – V C57
2021-08-05 03:33:59 s 1 -185147.65 2 +44799.721 2320.0 – C57
2021-08-05 03:43:59 S 20 48 24.101 +29 31 25.43 – V C57
2021-08-05 03:43:59 s 1 -184820.37 9 +43939.502 4560.0 – C57
2021-08-05 03:53:59 S 20 48 25.522 +29 32 13.24 – V C57
2021-08-05 03:53:59 s 1 -184489.73 1 +43078.486 6060.0 – C57
2021-08-05 03:54:26 V 20 46 35.04 +30 00 56.9 15.2 V 247
2021-08-05 03:54:26 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:03:59 S 20 48 26.914 +29 33 02.63 – V C57
2021-08-05 04:03:59 s 1 -184155.68 6 +42216.683 6780.0 – C57
2021-08-05 04:04:21 V 20 46 35.86 +30 01 38.9 15.5 V 247
2021-08-05 04:04:21 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:08:20 V 20 46 36.23 +30 01 56.0 15.6 V 247
2021-08-05 04:08:20 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:09:19 V 20 46 36.32 +30 02 00.3 15.2 V 247
2021-08-05 04:09:19 v 1 276.64224 +33.90559 – – 247
2021-08-05 04:10:19 V 20 46 36.42 +30 02 04.4 14.9 V 247
2021-08-05 04:10:19 v 1 276.64224 +33.90559 – – 247
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)