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
2021-08-03 12:33:59 S 20 42 12.823 +26 18 07.99 – V C57
2021-08-03 12:33:59 s 1 -199299.34 0 +216284.44 8550.0 – C57
2021-08-03 12:43:59 S 20 42 14.585 +26 18 59.15 – V C57
2021-08-03 12:43:59 s 1 -199418.24 4 +215686.27 9600.0 – C57
2021-08-03 13:23:59 S 20 42 21.204 +26 22 20.39 – V C57
2021-08-03 13:23:59 s 1 -199883.27 3 +213282.22 9540.0 – C57
2021-08-03 14:13:59 S 20 42 29.563 +26 26 34.22 – V C57
2021-08-03 14:13:59 s 1 -200440.41 7 +210251.57 3880.0 – C57
2021-08-03 14:23:59 S 20 42 31.195 +26 27 23.62 – V C57
2021-08-03 14:23:59 s 1 -200548.58 3 +209642.02 200.0 – C57
2021-08-03 14:33:59 S 20 42 32.839 +26 28 14.30 – V C57
2021-08-03 14:33:59 s 1 -200655.65 0 +209031.32 2960.0 – C57
2021-08-03 14:43:59 S 20 42 34.546 +26 29 04.09 – V C57
2021-08-03 14:43:59 s 1 -200761.61 6 +208419.49 2170.0 – C57
2021-08-03 14:53:59 S 20 42 36.187 +26 29 54.92 – V C57
2021-08-03 14:53:59 s 1 -200866.47 4 +207806.51 7800.0 – C57
2021-08-03 15:13:59 S 20 42 39.535 +26 31 35.04 – V C57
2021-08-03 15:13:59 s 1 -201072.85 2 +206577.12 8260.0 – C57
2021-08-03 15:33:59 S 20 42 42.864 +26 33 15.73 – V C57
2021-08-03 15:33:59 s 1 -201274.74 7 +205343.15 4240.0 – C57
2021-08-03 15:53:59 S 20 42 46.171 +26 34 56.21 – V C57
2021-08-03 15:53:59 s 1 -201472.12 1 +204104.60 5620.0 – C57
2021-08-03 16:03:59 S 20 42 47.818 +26 35 45.89 – V C57
2021-08-03 16:03:59 s 1 -201569.10 2 +203483.60 5800.0 – C57
2021-08-03 16:13:59 S 20 42 49.450 +26 36 36.22 – V C57
2021-08-03 16:13:59 s 1 -201664.93 9 +202861.45 2280.0 – C57
2021-08-03 16:23:59 S 20 42 51.086 +26 37 27.37 – V C57
2021-08-03 16:23:59 s 1 -201759.62 7 +202238.15 5050.0 – C57
2021-08-03 16:33:59 S 20 42 52.771 +26 38 16.87 – V C57
2021-08-03 16:33:59 s 1 -201853.16 2 +201613.71 4100.0 – C57
2021-08-03 16:43:59 S 20 42 54.442 +26 39 07.70 – V C57
2021-08-03 16:43:59 s 1 -201945.53 8 +200988.11 9400.0 – C57
2021-08-03 16:53:59 S 20 42 56.114 +26 39 57.67 – V C57
2021-08-03 16:53:59 s 1 -202036.75 0 +200361.36 950.0 – C57
2021-08-03 17:03:59 S 20 42 57.773 +26 40 48.22 – V C57
2021-08-03 17:03:59 s 1 -202126.79 5 +199733.46 8730.0 – C57
2021-08-03 17:13:59 S 20 42 59.374 +26 41 37.93 – V C57
2021-08-03 17:13:59 s 1 -202215.66 7 +199104.40 2720.0 – C57
2021-08-03 17:23:59 S 20 43 01.061 +26 42 27.65 – V C57
2021-08-03 17:23:59 s 1 -202303.36 1 +198474.20 2910.0 – C57
2021-08-03 17:43:59 S 20 43 04.356 +26 44 08.30 – V C57
2021-08-03 17:43:59 s 1 -202475.19 6 +197210.32 1820.0 – C57
2021-08-03 17:53:59 S 20 43 06.034 +26 44 57.01 – V C57
2021-08-03 17:53:59 s 1 -202559.32 6 +196576.65 510.0 – C57
2021-08-03 18:03:59 S 20 43 07.663 +26 45 48.67 – V C57
2021-08-03 18:03:59 s 1 -202642.25 9 +195941.82 5330.0 – C57
2021-08-03 18:23:59 S 20 43 11.047 +26 47 28.21 – V C57
2021-08-03 18:23:59 s 1 -202804.51 2 +194668.70 3320.0 – C57
2021-08-03 18:33:59 S 20 43 12.648 +26 48 18.18 – V C57
2021-08-03 18:33:59 s 1 -202883.82 1 +194030.40 6450.0 – 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)