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 02:53:59 S 20 56 02.515 +37 23 55.36 – V C57
2021-08-11 02:53:59 s 1 +96591.771 0 +337624.90 9060.0 – C57
2021-08-11 03:03:59 S 20 56 03.413 +37 24 14.98 – V C57
2021-08-11 03:03:59 s 1 +96258.993 0 +337949.65 5680.0 – C57
2021-08-11 03:13:59 S 20 56 04.358 +37 24 35.42 – V C57
2021-08-11 03:13:59 s 1 +95925.903 0 +338273.29 1390.0 – C57
2021-08-11 03:23:59 S 20 56 05.297 +37 24 54.65 – V C57
2021-08-11 03:23:59 s 1 +95592.500 0 +338595.82 6210.0 – C57
2021-08-11 03:33:59 S 20 56 06.134 +37 25 15.24 – V C57
2021-08-11 03:33:59 s 1 +95258.788 0 +338917.23 130.0 – C57
2021-08-11 03:43:59 S 20 56 07.145 +37 25 34.68 – V C57
2021-08-11 03:43:59 s 1 +94924.767 0 +339237.53 3170.0 – C57
2021-08-11 03:53:59 S 20 56 08.078 +37 25 55.85 – V C57
2021-08-11 03:53:59 s 1 +94590.439 0 +339556.73 5330.0 – C57
2021-08-11 04:03:59 S 20 56 09.041 +37 26 13.63 – V C57
2021-08-11 04:03:59 s 1 +94255.806 0 +339874.81 6610.0 – C57
2021-08-11 04:13:59 S 20 56 10.032 +37 26 35.16 – V C57
2021-08-11 04:13:59 s 1 +93920.869 0 +340191.78 7020.0 – C57
2021-08-11 04:23:59 S 20 56 10.843 +37 26 55.46 – V C57
2021-08-11 04:23:59 s 1 +93585.631 0 +340507.65 6570.0 – C57
2021-08-11 04:43:59 S 20 56 12.720 +37 27 34.45 – V C57
2021-08-11 04:43:59 s 1 +92914.254 0 +341136.07 3080.0 – C57
2021-08-11 04:53:59 S 20 56 13.589 +37 27 55.48 – V C57
2021-08-11 04:53:59 s 1 +92578.120 0 +341448.63 60.0 – C57
2021-08-11 05:03:59 S 20 56 14.388 +37 28 15.38 – V C57
2021-08-11 05:03:59 s 1 +92241.690 0 +341760.07 6190.0 – C57
2021-08-11 05:33:59 S 20 56 17.335 +37 29 15.36 – V C57
2021-08-11 05:33:59 s 1 +91230.642 0 +342687.81 9550.0 – C57
2021-08-11 05:43:59 S 20 56 18.312 +37 29 34.15 – V C57
2021-08-11 05:43:59 s 1 +90893.046 0 +342994.86 2340.0 – C57
2021-08-11 05:53:59 S 20 56 19.193 +37 29 54.60 – V C57
2021-08-11 05:53:59 s 1 +90555.163 0 +343300.80 4310.0 – C57
2021-08-11 06:03:59 S 20 56 20.167 +37 30 14.51 – V C57
2021-08-11 06:03:59 s 1 +90216.993 0 +343605.65 5460.0 – C57
2021-08-11 06:13:59 S 20 56 21.086 +37 30 34.16 – V C57
2021-08-11 06:13:59 s 1 +89878.539 0 +343909.40 5800.0 – C57
2021-08-11 06:23:59 S 20 56 22.030 +37 30 55.01 – V C57
2021-08-11 06:23:59 s 1 +89539.802 0 +344212.06 5340.0 – C57
2021-08-11 06:33:59 S 20 56 22.970 +37 31 13.48 – V C57
2021-08-11 06:33:59 s 1 +89200.784 0 +344513.62 4070.0 – C57
2021-08-11 06:53:59 S 20 56 24.847 +37 31 52.61 – V C57
2021-08-11 06:53:59 s 1 +88521.909 0 +345113.45 9140.0 – C57
2021-08-11 07:03:59 S 20 56 25.814 +37 32 13.24 – V C57
2021-08-11 07:03:59 s 1 +88182.056 0 +345411.73 5490.0 – C57
2021-08-11 07:13:59 S 20 56 26.650 +37 32 33.07 – V C57
2021-08-11 07:13:59 s 1 +87841.928 0 +345708.92 1050.0 – C57
2021-08-11 07:23:59 S 20 56 27.622 +37 32 52.98 – V C57
2021-08-11 07:23:59 s 1 +87501.526 0 +346005.01 5840.0 – C57
2021-08-11 07:33:59 S 20 56 28.514 +37 33 12.67 – V C57
2021-08-11 07:33:59 s 1 +87160.852 0 +346300.02 9850.0 – 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)