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
2021-06-16 06:24:02 S 16 44 53.124 -69 01 12.86 – V C57
2021-06-16 06:24:02 s 1 +42745.338 0 +395631.04 8270.0 – C57
2021-06-16 06:34:02 S 16 44 54.473 -69 01 11.14 – V C57
2021-06-16 06:34:02 s 1 +42391.746 0 +395762.74 6320.0 – C57
2021-06-16 06:44:02 S 16 44 56.947 -69 01 11.28 – V C57
2021-06-16 06:44:02 s 1 +42038.061 0 +395893.53 4270.0 – C57
2021-06-16 06:54:02 S 16 44 58.625 -69 01 10.63 – V C57
2021-06-16 06:54:02 s 1 +41684.286 0 +396023.42 2140.0 – C57
2021-06-16 07:04:02 S 16 44 59.786 -69 01 08.44 – V C57
2021-06-16 07:04:02 s 1 +41330.420 0 +396152.41 9920.0 – C57
2021-06-16 07:14:02 S 16 45 01.594 -69 01 08.58 – V C57
2021-06-16 07:14:02 s 1 +40976.465 0 +396280.50 7620.0 – C57
2021-06-16 07:24:02 S 16 45 02.808 -69 01 05.45 – V C57
2021-06-16 07:24:02 s 1 +40622.421 0 +396407.69 5230.0 – C57
2021-06-16 07:34:02 S 16 45 04.843 -69 01 02.68 – V C57
2021-06-16 07:34:02 s 1 +40268.290 0 +396533.98 2760.0 – C57
2021-06-16 07:44:02 S 16 45 06.245 -69 01 03.25 – V C57
2021-06-16 07:44:02 s 1 +39914.071 0 +396659.37 210.0 – C57
2021-06-16 07:54:02 S 16 45 07.610 -69 01 01.85 – V C57
2021-06-16 07:54:02 s 1 +39559.767 0 +396783.86 7590.0 – C57
2021-06-16 08:24:02 S 16 45 12.739 -69 00 57.85 – V C57
2021-06-16 08:24:02 s 1 +38496.348 0 +397151.94 9290.0 – C57
2021-06-16 08:34:02 S 16 45 13.550 -69 00 54.36 – V C57
2021-06-16 08:34:02 s 1 +38141.709 0 +397272.84 6390.0 – C57
2021-06-16 08:44:02 S 16 45 15.727 -69 00 55.08 – V C57
2021-06-16 08:44:02 s 1 +37786.989 0 +397392.84 3420.0 – C57
2021-06-16 08:54:02 S 16 45 17.059 -69 01 03.25 – V C57
2021-06-16 08:54:02 s 1 +37432.188 0 +397511.94 390.0 – C57
2021-06-16 10:04:02 S 16 45 29.902 -69 00 41.76 – V C57
2021-06-16 10:04:02 s 1 +34946.398 0 +398320.58 2400.0 – C57
2021-06-16 10:24:02 S 16 45 32.299 -69 00 40.14 – V C57
2021-06-16 10:24:02 s 1 +34235.497 0 +398543.56 9340.0 – C57
2021-06-16 10:34:02 S 16 45 34.231 -69 00 40.97 – V C57
2021-06-16 10:34:02 s 1 +33879.938 0 +398653.71 2880.0 – C57
2021-06-16 11:14:02 S 16 45 40.186 -69 00 38.41 – V C57
2021-06-16 11:14:02 s 1 +32457.001 0 +399085.38 7370.0 – C57
2021-06-16 11:44:02 S 16 45 45.605 -69 00 24.91 – V C57
2021-06-16 11:44:02 s 1 +31389.087 0 +399399.76 8560.0 – C57
2021-06-16 11:54:02 S 16 45 47.359 -69 00 27.25 – V C57
2021-06-16 11:54:02 s 1 +31032.984 0 +399502.76 2330.0 – C57
2021-06-16 12:04:02 S 16 45 48.348 -69 00 26.78 – V C57
2021-06-16 12:04:02 s 1 +30676.817 0 +399604.88 6130.0 – C57
2021-06-16 12:14:02 S 16 45 50.681 -69 00 25.02 – V C57
2021-06-16 12:14:02 s 1 +30320.587 0 +399706.11 9950.0 – C57
2021-06-16 12:24:02 S 16 45 52.673 -69 00 21.74 – V C57
2021-06-16 12:24:02 s 1 +29964.294 0 +399806.44 3780.0 – C57
2021-06-16 12:54:02 S 16 45 57.103 -69 00 16.67 – V C57
2021-06-16 12:54:02 s 1 +28895.051 0 +400102.10 5350.0 – C57
2021-06-16 13:14:02 S 16 46 00.857 -69 00 18.25 – V C57
2021-06-16 13:14:02 s 1 +28181.925 0 +400294.76 3100.0 – 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)