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
2021-06-23 04:34:02 S 17 12 59.412 -68 41 11.40 – V C57
2021-06-23 04:34:02 s 1 -182902.30 8 +66155.756 8670.0 – C57
2021-06-23 04:44:02 S 17 13 00.545 -68 41 09.49 – V C57
2021-06-23 04:44:02 s 1 -182628.54 3 +65281.734 530.0 – C57
2021-06-23 04:54:02 S 17 13 01.687 -68 41 08.38 – V C57
2021-06-23 04:54:02 s 1 -182351.54 7 +64406.565 3030.0 – C57
2021-06-23 05:04:02 S 17 13 03.182 -68 41 09.31 – V C57
2021-06-23 05:04:02 s 1 -182071.29 7 +63530.255 6110.0 – C57
2021-06-23 05:14:02 S 17 13 04.020 -68 41 07.12 – V C57
2021-06-23 05:14:02 s 1 -181787.77 1 +62652.810 9700.0 – C57
2021-06-23 05:24:02 S 17 13 05.237 -68 41 06.50 – V C57
2021-06-23 05:24:02 s 1 -181500.94 7 +61774.237 3750.0 – C57
2021-06-23 05:34:02 S 17 13 06.506 -68 41 06.18 – V C57
2021-06-23 05:34:02 s 1 -181210.80 2 +60894.541 8180.0 – C57
2021-06-23 05:44:02 S 17 13 07.901 -68 41 03.37 – V C57
2021-06-23 05:44:02 s 1 -180917.31 2 +60013.729 2940.0 – C57
2021-06-23 05:54:02 S 17 13 08.813 -68 41 03.52 – V C57
2021-06-23 05:54:02 s 1 -180620.45 6 +59131.809 7960.0 – C57
2021-06-23 06:04:02 S 17 13 10.075 -68 41 02.26 – V C57
2021-06-23 06:04:02 s 1 -180320.20 8 +58248.786 3170.0 – C57
2021-06-23 06:14:02 S 17 13 11.232 -68 41 02.15 – V C57
2021-06-23 06:14:02 s 1 -180016.54 7 +57364.668 8520.0 – C57
2021-06-23 06:24:02 S 17 13 12.365 -68 40 59.59 – V C57
2021-06-23 06:24:02 s 1 -179709.44 8 +56479.462 3920.0 – C57
2021-06-23 06:34:02 S 17 13 13.510 -68 40 59.74 – V C57
2021-06-23 06:34:02 s 1 -179398.88 6 +55593.176 9320.0 – C57
2021-06-23 06:44:02 S 17 13 14.722 -68 40 57.72 – V C57
2021-06-23 06:44:02 s 1 -179084.83 8 +54705.817 4640.0 – C57
2021-06-23 06:54:02 S 17 13 16.078 -68 40 57.22 – V C57
2021-06-23 06:54:02 s 1 -178767.28 0 +53817.393 9820.0 – C57
2021-06-23 07:04:02 S 17 13 17.081 -68 40 56.35 – V C57
2021-06-23 07:04:02 s 1 -178446.18 6 +52927.912 4790.0 – C57
2021-06-23 07:14:02 S 17 13 18.257 -68 40 55.67 – V C57
2021-06-23 07:14:02 s 1 -178121.53 1 +52037.382 9480.0 – C57
2021-06-23 07:24:02 S 17 13 19.649 -68 40 54.84 – V C57
2021-06-23 07:24:02 s 1 -177793.29 1 +51145.812 3820.0 – C57
2021-06-23 07:34:02 S 17 13 20.448 -68 40 54.12 – V C57
2021-06-23 07:34:02 s 1 -177461.44 0 +50253.210 7740.0 – C57
2021-06-23 07:44:02 S 17 13 21.595 -68 40 52.68 – V C57
2021-06-23 07:44:02 s 1 -177125.95 3 +49359.586 1160.0 – C57
2021-06-23 07:54:02 S 17 13 22.692 -68 40 50.81 – V C57
2021-06-23 07:54:02 s 1 -176786.80 3 +48464.948 4010.0 – C57
2021-06-23 08:04:02 S 17 13 23.794 -68 40 48.61 – V C57
2021-06-23 08:04:02 s 1 -176443.96 4 +47569.305 6230.0 – C57
2021-06-23 08:14:02 S 17 13 25.195 -68 40 46.42 – V C57
2021-06-23 08:14:02 s 1 -176097.41 0 +46672.668 7740.0 – C57
2021-06-23 08:24:02 S 17 13 25.824 -68 40 46.45 – V C57
2021-06-23 08:24:02 s 1 -175747.11 4 +45775.046 8450.0 – C57
2021-06-23 08:34:02 S 17 13 27.307 -68 40 44.08 – V C57
2021-06-23 08:34:02 s 1 -175393.05 0 +44876.450 8310.0 – 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)