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
2021-08-04 05:43:59 S 20 45 01.930 +27 43 42.38 – V C57
2021-08-04 05:43:59 s 1 -205136.02 3 +148599.30 6220.0 – C57
2021-08-04 05:53:59 S 20 45 03.514 +27 44 32.57 – V C57
2021-08-04 05:53:59 s 1 -205118.98 4 +147881.14 9310.0 – C57
2021-08-04 06:03:59 S 20 45 05.136 +27 45 21.42 – V C57
2021-08-04 06:03:59 s 1 -205100.29 2 +147161.79 7100.0 – C57
2021-08-04 06:13:59 S 20 45 06.725 +27 46 10.09 – V C57
2021-08-04 06:13:59 s 1 -205079.94 0 +146441.26 9550.0 – C57
2021-08-04 06:33:59 S 20 45 09.919 +27 47 49.09 – V C57
2021-08-04 06:33:59 s 1 -205034.22 2 +144996.65 8370.0 – C57
2021-08-04 06:53:59 S 20 45 13.133 +27 49 26.80 – V C57
2021-08-04 06:53:59 s 1 -204981.76 6 +143547.30 5550.0 – C57
2021-08-04 07:03:59 S 20 45 14.726 +27 50 17.09 – V C57
2021-08-04 07:03:59 s 1 -204952.99 2 +142820.85 970.0 – C57
2021-08-04 07:13:59 S 20 45 16.315 +27 51 06.55 – V C57
2021-08-04 07:13:59 s 1 -204922.50 8 +142093.22 900.0 – C57
2021-08-04 07:33:59 S 20 45 19.526 +27 52 45.77 – V C57
2021-08-04 07:33:59 s 1 -204856.38 0 +140634.41 4210.0 – C57
2021-08-04 07:43:59 S 20 45 21.118 +27 53 33.58 – V C57
2021-08-04 07:43:59 s 1 -204820.71 9 +139903.23 7530.0 – C57
2021-08-04 07:53:59 S 20 45 22.726 +27 54 23.47 – V C57
2021-08-04 07:53:59 s 1 -204783.31 6 +139170.86 5270.0 – C57
2021-08-04 08:03:59 S 20 45 24.324 +27 55 11.93 – V C57
2021-08-04 08:03:59 s 1 -204744.16 2 +138437.32 7380.0 – C57
2021-08-04 08:13:59 S 20 45 25.915 +27 56 00.96 – V C57
2021-08-04 08:13:59 s 1 -204703.24 9 +137702.59 3850.0 – C57
2021-08-04 08:23:59 S 20 45 27.449 +27 56 50.39 – V C57
2021-08-04 08:23:59 s 1 -204660.56 7 +136966.68 4650.0 – C57
2021-08-04 08:33:59 S 20 45 29.107 +27 57 38.74 – V C57
2021-08-04 08:33:59 s 1 -204616.10 8 +136229.58 9750.0 – C57
2021-08-04 08:43:59 S 20 45 30.670 +27 58 28.85 – V C57
2021-08-04 08:43:59 s 1 -204569.86 4 +135491.31 9120.0 – C57
2021-08-04 08:53:59 S 20 45 32.285 +27 59 16.98 – V C57
2021-08-04 08:53:59 s 1 -204521.82 6 +134751.86 2740.0 – C57
2021-08-04 09:03:59 S 20 45 33.859 +28 00 06.55 – V C57
2021-08-04 09:03:59 s 1 -204471.98 4 +134011.22 570.0 – C57
2021-08-04 09:13:59 S 20 45 35.477 +28 00 55.19 – V C57
2021-08-04 09:13:59 s 1 -204420.33 0 +133269.41 2600.0 – C57
2021-08-04 09:23:59 S 20 45 37.070 +28 01 44.69 – V C57
2021-08-04 09:23:59 s 1 -204366.85 5 +132526.41 8780.0 – C57
2021-08-04 09:33:59 S 20 45 38.645 +28 02 32.96 – V C57
2021-08-04 09:33:59 s 1 -204311.55 0 +131782.24 9100.0 – C57
2021-08-04 09:43:59 S 20 45 40.147 +28 03 21.67 – V C57
2021-08-04 09:43:59 s 1 -204254.40 6 +131036.89 3520.0 – C57
2021-08-04 09:53:59 S 20 45 41.806 +28 04 11.75 – V C57
2021-08-04 09:53:59 s 1 -204195.41 3 +130290.36 2010.0 – C57
2021-08-04 10:03:59 S 20 45 43.438 +28 05 00.35 – V C57
2021-08-04 10:03:59 s 1 -204134.56 2 +129542.65 4550.0 – C57
2021-08-04 10:23:59 S 20 45 46.606 +28 06 38.92 – V C57
2021-08-04 10:23:59 s 1 -204007.25 0 +128043.70 1650.0 – 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)