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
2021-06-20 05:54:02 S 17 01 28.296 -68 48 43.56 – V C57
2021-06-20 05:54:02 s 1 -148925.66 9 +326659.96 2170.0 – C57
2021-06-20 06:04:02 S 17 01 29.251 -68 48 40.90 – V C57
2021-06-20 06:04:02 s 1 -149191.03 8 +326279.62 1040.0 – C57
2021-06-20 07:14:02 S 17 01 42.058 -68 48 33.44 – V C57
2021-06-20 07:14:02 s 1 -151035.57 4 +323589.75 2800.0 – C57
2021-06-20 07:24:02 S 17 01 44.266 -68 48 35.21 – V C57
2021-06-20 07:24:02 s 1 -151297.19 5 +323201.55 100.0 – C57
2021-06-20 07:34:02 S 17 01 46.212 -68 48 31.86 – V C57
2021-06-20 07:34:02 s 1 -151558.34 0 +322812.37 5920.0 – C57
2021-06-20 07:44:02 S 17 01 47.844 -68 48 31.86 – V C57
2021-06-20 07:44:02 s 1 -151819.00 6 +322422.21 280.0 – C57
2021-06-20 07:54:02 S 17 01 49.735 -68 48 30.96 – V C57
2021-06-20 07:54:02 s 1 -152079.19 4 +322031.05 3160.0 – C57
2021-06-20 08:04:02 S 17 01 51.466 -68 48 30.60 – V C57
2021-06-20 08:04:02 s 1 -152338.90 0 +321638.91 4550.0 – C57
2021-06-20 08:14:02 S 17 01 53.256 -68 48 26.24 – V C57
2021-06-20 08:14:02 s 1 -152598.12 3 +321245.78 4460.0 – C57
2021-06-20 08:24:02 S 17 01 54.878 -68 48 25.34 – V C57
2021-06-20 08:24:02 s 1 -152856.86 2 +320851.67 2870.0 – C57
2021-06-20 08:54:02 S 17 02 00.365 -68 48 22.68 – V C57
2021-06-20 08:54:02 s 1 -153630.15 2 +319663.38 9110.0 – C57
2021-06-20 09:04:02 S 17 02 01.841 -68 48 21.46 – V C57
2021-06-20 09:04:02 s 1 -153886.93 5 +319265.31 1500.0 – C57
2021-06-20 09:14:02 S 17 02 03.674 -68 48 19.76 – V C57
2021-06-20 09:14:02 s 1 -154143.22 4 +318866.24 2380.0 – C57
2021-06-20 09:34:02 S 17 02 07.541 -68 48 18.43 – V C57
2021-06-20 09:34:02 s 1 -154654.31 6 +318065.12 9560.0 – C57
2021-06-20 09:44:02 S 17 02 09.110 -68 48 14.62 – V C57
2021-06-20 09:44:02 s 1 -154909.11 4 +317663.08 5850.0 – C57
2021-06-20 10:24:02 S 17 02 16.457 -68 48 12.06 – V C57
2021-06-20 10:24:02 s 1 -155923.28 7 +316044.93 5580.0 – C57
2021-06-20 10:34:02 S 17 02 18.115 -68 48 10.48 – V C57
2021-06-20 10:34:02 s 1 -156175.56 5 +315637.90 4130.0 – C57
2021-06-20 10:44:02 S 17 02 20.074 -68 48 09.25 – V C57
2021-06-20 10:44:02 s 1 -156427.33 4 +315229.88 1110.0 – C57
2021-06-20 10:54:02 S 17 02 21.631 -68 48 08.64 – V C57
2021-06-20 10:54:02 s 1 -156678.59 2 +314820.85 6530.0 – C57
2021-06-20 11:04:02 S 17 02 23.556 -68 48 09.65 – V C57
2021-06-20 11:04:02 s 1 -156929.33 7 +314410.82 370.0 – C57
2021-06-20 11:14:02 S 17 02 25.404 -68 48 07.45 – V C57
2021-06-20 11:14:02 s 1 -157179.56 7 +313999.80 2630.0 – C57
2021-06-20 11:24:02 S 17 02 27.084 -68 48 03.49 – V C57
2021-06-20 11:24:02 s 1 -157429.28 0 +313587.77 3300.0 – C57
2021-06-20 11:34:02 S 17 02 28.793 -68 48 02.77 – V C57
2021-06-20 11:34:02 s 1 -157678.47 4 +313174.74 2380.0 – C57
2021-06-20 11:44:02 S 17 02 30.430 -68 48 02.05 – V C57
2021-06-20 11:44:02 s 1 -157927.14 8 +312760.71 9870.0 – C57
2021-06-20 11:54:02 S 17 02 32.208 -68 48 00.29 – V C57
2021-06-20 11:54:02 s 1 -158175.30 0 +312345.67 5760.0 – 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)