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
2021-07-21 22:18:00 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:19:19 V 19 54 36.22 -13 50 58.6 13.0 V 247
2021-07-21 22:19:19 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:19:59 V 19 54 36.32 -13 50 53.0 13.0 V 247
2021-07-21 22:19:59 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:20:39 V 19 54 36.37 -13 50 45.4 13.0 V 247
2021-07-21 22:20:39 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:21:19 V 19 54 36.54 -13 50 39.6 13.2 V 247
2021-07-21 22:21:19 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:22:42 V 19 54 36.70 -13 50 24.5 13.1 V 247
2021-07-21 22:22:42 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:23:22 V 19 54 36.91 -13 50 17.6 13.0 V 247
2021-07-21 22:23:22 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:39:50 V 19 54 39.73 -13 47 22.0 13.0 V 247
2021-07-21 22:39:50 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:40:29 V 19 54 39.85 -13 47 15.4 12.8 V 247
2021-07-21 22:40:29 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:41:11 V 19 54 39.96 -13 47 08.9 13.0 V 247
2021-07-21 22:41:11 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:41:53 V 19 54 40.12 -13 47 00.9 12.9 V 247
2021-07-21 22:41:53 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:42:32 V 19 54 40.26 -13 46 53.8 13.0 V 247
2021-07-21 22:42:32 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:43:12 V 19 54 40.37 -13 46 46.9 12.8 V 247
2021-07-21 22:43:12 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:43:52 V 19 54 40.45 -13 46 40.1 12.9 V 247
2021-07-21 22:43:52 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:44:32 V 19 54 40.56 -13 46 33.3 13.0 V 247
2021-07-21 22:44:32 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:46:31 V 19 54 40.93 -13 46 11.5 13.0 V 247
2021-07-21 22:46:31 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:47:50 V 19 54 41.10 -13 45 58.4 13.5 V 247
2021-07-21 22:47:50 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:51:09 V 19 54 41.70 -13 45 22.5 12.6 V 247
2021-07-21 22:51:09 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:52:28 V 19 54 41.96 -13 45 08.7 13.4 V 247
2021-07-21 22:52:28 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:53:48 V 19 54 42.22 -13 44 54.5 13.1 V 247
2021-07-21 22:53:48 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:54:27 V 19 54 42.25 -13 44 49.1 13.3 V 247
2021-07-21 22:54:27 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:55:07 V 19 54 42.45 -13 44 41.0 13.2 V 247
2021-07-21 22:55:07 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:55:47 V 19 54 42.52 -13 44 33.6 13.4 V 247
2021-07-21 22:55:47 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:56:26 V 19 54 42.63 -13 44 27.1 13.3 V 247
2021-07-21 22:56:26 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:57:06 V 19 54 42.78 -13 44 20.5 13.2 V 247
2021-07-21 22:57:06 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:59:05 V 19 54 43.09 -13 43 59.0 13.0 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)