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
2021-08-11 14:43:59 S 20 57 09.552 +37 47 12.08 – V C57
2021-08-11 14:43:59 s 1 +72275.246 0 +357965.92 3020.0 – C57
2021-08-11 14:53:59 S 20 57 10.462 +37 47 31.42 – V C57
2021-08-11 14:53:59 s 1 +71924.033 0 +358213.78 7330.0 – C57
2021-08-11 15:03:59 S 20 57 11.443 +37 47 50.21 – V C57
2021-08-11 15:03:59 s 1 +71572.611 0 +358460.58 1060.0 – C57
2021-08-11 15:33:59 S 20 57 14.412 +37 48 48.13 – V C57
2021-08-11 15:33:59 s 1 +70517.107 0 +359194.67 8800.0 – C57
2021-08-11 15:43:59 S 20 57 15.274 +37 49 06.38 – V C57
2021-08-11 15:43:59 s 1 +70164.865 0 +359437.27 240.0 – C57
2021-08-11 15:53:59 S 20 57 16.279 +37 49 26.65 – V C57
2021-08-11 15:53:59 s 1 +69812.420 0 +359678.81 1130.0 – C57
2021-08-11 16:03:59 S 20 57 17.179 +37 49 45.77 – V C57
2021-08-11 16:03:59 s 1 +69459.775 0 +359919.30 1460.0 – C57
2021-08-11 16:13:59 S 20 57 18.281 +37 50 05.24 – V C57
2021-08-11 16:13:59 s 1 +69106.931 0 +360158.75 1240.0 – C57
2021-08-11 16:23:59 S 20 57 19.248 +37 50 24.29 – V C57
2021-08-11 16:23:59 s 1 +68753.888 0 +360397.14 470.0 – C57
2021-08-11 16:33:59 S 20 57 20.218 +37 50 43.33 – V C57
2021-08-11 16:33:59 s 1 +68400.649 0 +360634.49 9160.0 – C57
2021-08-11 16:43:59 S 20 57 21.130 +37 51 01.87 – V C57
2021-08-11 16:43:59 s 1 +68047.214 0 +360870.80 7300.0 – C57
2021-08-11 16:53:59 S 20 57 22.042 +37 51 21.92 – V C57
2021-08-11 16:53:59 s 1 +67693.585 0 +361106.05 4910.0 – C57
2021-08-11 17:23:59 S 20 57 25.025 +37 52 19.78 – V C57
2021-08-11 17:23:59 s 1 +66631.546 0 +361805.55 4560.0 – C57
2021-08-11 17:33:59 S 20 57 25.918 +37 52 38.89 – V C57
2021-08-11 17:33:59 s 1 +66277.153 0 +362036.63 70.0 – C57
2021-08-11 17:43:59 S 20 57 26.928 +37 52 57.22 – V C57
2021-08-11 17:43:59 s 1 +65922.572 0 +362266.66 5050.0 – C57
2021-08-11 17:53:59 S 20 57 27.982 +37 53 16.26 – V C57
2021-08-11 17:53:59 s 1 +65567.805 0 +362495.66 9530.0 – C57
2021-08-11 18:23:59 S 20 57 30.787 +37 54 14.58 – V C57
2021-08-11 18:23:59 s 1 +64502.396 0 +363176.39 9900.0 – C57
2021-08-11 18:33:59 S 20 57 31.757 +37 54 31.57 – V C57
2021-08-11 18:33:59 s 1 +64146.895 0 +363401.22 2360.0 – C57
2021-08-11 18:43:59 S 20 57 32.736 +37 54 51.30 – V C57
2021-08-11 18:43:59 s 1 +63791.213 0 +363625.02 4330.0 – C57
2021-08-11 18:53:59 S 20 57 33.718 +37 55 10.16 – V C57
2021-08-11 18:53:59 s 1 +63435.353 0 +363847.77 5800.0 – C57
2021-08-11 19:03:59 S 20 57 34.625 +37 55 31.01 – V C57
2021-08-11 19:03:59 s 1 +63079.314 0 +364069.49 6790.0 – C57
2021-08-11 19:13:59 S 20 57 35.647 +37 55 49.12 – V C57
2021-08-11 19:13:59 s 1 +62723.099 0 +364290.17 7300.0 – C57
2021-08-11 19:23:59 S 20 57 36.624 +37 56 06.86 – V C57
2021-08-11 19:23:59 s 1 +62366.709 0 +364509.82 7320.0 – C57
2021-08-11 19:33:59 S 20 57 37.558 +37 56 27.02 – V C57
2021-08-11 19:33:59 s 1 +62010.145 0 +364728.43 6870.0 – C57
2021-08-11 19:43:59 S 20 57 38.549 +37 56 46.03 – V C57
2021-08-11 19:43:59 s 1 +61653.407 0 +364946.00 5950.0 – 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)