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
2021-07-29 22:58:20 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:59:20 V 20 27 36.39 +16 05 06.0 14.2 V 247
2021-07-29 22:59:20 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:00:19 V 20 27 36.52 +16 05 13.4 15.1 V 247
2021-07-29 23:00:19 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:06:17 V 20 27 37.23 +16 05 56.0 14.4 V 247
2021-07-29 23:06:17 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:07:16 V 20 27 37.34 +16 06 02.7 14.2 V 247
2021-07-29 23:07:16 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:08:16 V 20 27 37.47 +16 06 10.3 14.3 V 247
2021-07-29 23:08:16 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:09:15 V 20 27 37.58 +16 06 17.5 14.5 V 247
2021-07-29 23:09:15 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:11:15 V 20 27 37.82 +16 06 32.3 14.5 V 247
2021-07-29 23:11:15 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:12:14 V 20 27 37.95 +16 06 39.1 14.4 V 247
2021-07-29 23:12:14 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:13:14 V 20 27 38.07 +16 06 46.2 14.3 V 247
2021-07-29 23:13:14 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:14:13 V 20 27 38.16 +16 06 53.3 14.3 V 247
2021-07-29 23:14:13 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:15:13 V 20 27 38.33 +16 07 00.9 14.3 V 247
2021-07-29 23:15:13 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:16:12 V 20 27 38.42 +16 07 07.4 14.4 V 247
2021-07-29 23:16:12 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:17:12 V 20 27 38.54 +16 07 14.8 14.5 V 247
2021-07-29 23:17:12 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:18:11 V 20 27 38.67 +16 07 22.3 14.4 V 247
2021-07-29 23:18:11 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:19:11 V 20 27 38.84 +16 07 29.3 14.1 V 247
2021-07-29 23:19:11 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:20:11 V 20 27 38.92 +16 07 37.2 14.1 V 247
2021-07-29 23:20:11 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:22:10 V 20 27 39.15 +16 07 51.4 14.6 V 247
2021-07-29 23:22:10 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:29:15 V 20 27 40.12 +16 08 41.1 14.1 V 247
2021-07-29 23:29:15 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:31:14 V 20 27 40.33 +16 08 56.7 14.1 V 247
2021-07-29 23:31:14 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:32:14 V 20 27 40.48 +16 09 02.7 14.1 V 247
2021-07-29 23:32:14 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:36:12 V 20 27 40.92 +16 09 33.2 14.1 V 247
2021-07-29 23:36:12 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:37:12 V 20 27 41.02 +16 09 40.3 14.2 V 247
2021-07-29 23:37:12 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:38:11 V 20 27 41.12 +16 09 47.3 14.1 V 247
2021-07-29 23:38:11 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:39:11 V 20 27 41.28 +16 09 54.3 14.1 V 247
2021-07-29 23:39:11 v 1 016.41060 +47.95355 – – 247
2021-07-29 23:40:10 V 20 27 41.38 +16 10 01.1 14.4 V 247
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)