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
2021-06-01 15:34:03 S 16 20 07.337 -67 56 21.66 – V C57
2021-06-01 15:34:03 s 1 +44379.463 0 +394396.57 4170.0 – C57
2021-06-01 15:44:03 S 16 20 07.555 -67 56 24.36 – V C57
2021-06-01 15:44:03 s 1 +44027.990 0 +394534.90 8360.0 – C57
2021-06-01 15:54:03 S 16 20 09.082 -67 56 29.40 – V C57
2021-06-01 15:54:03 s 1 +43676.412 0 +394672.33 2420.0 – C57
2021-06-01 16:34:03 S 16 20 11.890 -67 56 51.43 – V C57
2021-06-01 16:34:03 s 1 +42269.066 0 +395213.09 7360.0 – C57
2021-06-01 16:44:03 S 16 20 12.293 -67 56 52.80 – V C57
2021-06-01 16:44:03 s 1 +41916.975 0 +395346.05 780.0 – C57
2021-06-01 17:14:03 S 16 20 13.668 -67 57 13.39 – V C57
2021-06-01 17:14:03 s 1 +40860.108 0 +395739.53 330.0 – C57
2021-06-01 17:34:03 S 16 20 15.883 -67 57 19.80 – V C57
2021-06-01 17:34:03 s 1 +40155.041 0 +395997.38 6120.0 – C57
2021-06-01 17:44:03 S 16 20 16.056 -67 57 22.93 – V C57
2021-06-01 17:44:03 s 1 +39802.365 0 +396124.97 8850.0 – C57
2021-06-01 17:54:03 S 16 20 16.805 -67 57 28.51 – V C57
2021-06-01 17:54:03 s 1 +39449.593 0 +396251.66 1470.0 – C57
2021-06-01 18:34:03 S 16 20 20.002 -67 57 49.79 – V C57
2021-06-01 18:34:03 s 1 +38037.578 0 +396749.51 930.0 – C57
2021-06-01 18:44:03 S 16 20 20.134 -67 57 50.22 – V C57
2021-06-01 18:44:03 s 1 +37684.346 0 +396871.74 3050.0 – C57
2021-06-01 18:54:03 S 16 20 21.816 -67 57 58.50 – V C57
2021-06-01 18:54:03 s 1 +37331.025 0 +396993.08 5080.0 – C57
2021-06-01 19:24:03 S 16 20 23.890 -67 58 13.58 – V C57
2021-06-01 19:24:03 s 1 +36270.532 0 +397351.76 610.0 – C57
2021-06-01 19:34:03 S 16 20 24.713 -67 58 14.66 – V C57
2021-06-01 19:34:03 s 1 +35916.862 0 +397469.53 2280.0 – C57
2021-06-01 20:14:03 S 16 20 27.314 -67 58 31.37 – V C57
2021-06-01 20:14:03 s 1 +34501.335 0 +397931.75 1860.0 – C57
2021-06-01 21:14:03 S 16 20 31.306 -67 59 04.99 – V C57
2021-06-01 21:14:03 s 1 +32375.609 0 +398598.42 5260.0 – C57
2021-06-01 22:24:03 S 16 20 36.751 -67 59 38.83 – V C57
2021-06-01 22:24:03 s 1 +29892.116 0 +399335.85 340.0 – C57
2021-06-01 22:34:03 S 16 20 36.938 -67 59 49.20 – V C57
2021-06-01 22:34:03 s 1 +29537.042 0 +399437.66 9840.0 – C57
2021-06-01 22:44:03 S 16 20 37.080 -67 59 54.13 – V C57
2021-06-01 22:44:03 s 1 +29181.897 0 +399538.58 9390.0 – C57
2021-06-01 22:54:03 S 16 20 38.316 -67 59 50.82 – V C57
2021-06-01 22:54:03 s 1 +28826.683 0 +399638.61 8980.0 – C57
2021-06-01 23:04:03 S 16 20 38.323 -67 59 57.73 – V C57
2021-06-01 23:04:03 s 1 +28471.400 0 +399737.76 8610.0 – C57
2021-06-01 23:44:03 S 16 20 41.760 -68 00 20.34 – V C57
2021-06-01 23:44:03 s 1 +27049.604 0 +400125.53 7490.0 – C57
2021-06-01 23:54:03 S 16 20 41.894 -68 00 26.06 – V C57
2021-06-01 23:54:03 s 1 +26693.992 0 +400220.27 7290.0 – C57
2021-06-02 00:04:03 S 16 20 43.133 -68 00 25.24 – V C57
2021-06-02 00:04:03 s 1 +26338.317 0 +400314.12 7120.0 – C57
2021-06-02 00:14:03 S 16 20 44.486 -68 00 33.52 – V C57
2021-06-02 00:14:03 s 1 +25982.580 0 +400407.08 6970.0 – 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)