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
2021-07-22 01:10:43 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:11:23 V 19 55 06.02 -13 20 32.9 13.3 V 247
2021-07-22 01:11:23 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:12:03 V 19 55 06.10 -13 20 25.7 12.9 V 247
2021-07-22 01:12:03 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:12:42 V 19 55 06.19 -13 20 18.9 13.1 V 247
2021-07-22 01:12:42 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:13:22 V 19 55 06.33 -13 20 11.4 13.1 V 247
2021-07-22 01:13:22 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:14:02 V 19 55 06.46 -13 20 05.0 13.1 V 247
2021-07-22 01:14:02 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:14:41 V 19 55 06.55 -13 19 57.5 13.1 V 247
2021-07-22 01:14:41 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:15:21 V 19 55 06.67 -13 19 51.0 13.1 V 247
2021-07-22 01:15:21 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:16:01 V 19 55 06.76 -13 19 44.1 13.3 V 247
2021-07-22 01:16:01 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:16:41 V 19 55 06.92 -13 19 36.4 13.2 V 247
2021-07-22 01:16:41 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:17:20 V 19 55 06.99 -13 19 30.1 13.1 V 247
2021-07-22 01:17:20 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:18:00 V 19 55 07.13 -13 19 23.2 13.3 V 247
2021-07-22 01:18:00 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:18:40 V 19 55 07.26 -13 19 15.5 13.1 V 247
2021-07-22 01:18:40 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:19:20 V 19 55 07.35 -13 19 09.2 13.2 V 247
2021-07-22 01:19:20 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:19:59 V 19 55 07.48 -13 19 01.9 13.2 V 247
2021-07-22 01:19:59 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:20:39 V 19 55 07.60 -13 18 54.7 13.1 V 247
2021-07-22 01:20:39 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:21:19 V 19 55 07.69 -13 18 47.5 13.0 V 247
2021-07-22 01:21:19 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:21:58 V 19 55 07.78 -13 18 40.6 13.2 V 247
2021-07-22 01:21:58 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:22:38 V 19 55 07.96 -13 18 33.0 13.2 V 247
2021-07-22 01:22:38 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:25:16 V 19 55 08.39 -13 18 04.8 13.1 V 247
2021-07-22 01:25:16 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:25:56 V 19 55 08.53 -13 17 57.4 13.3 V 247
2021-07-22 01:25:56 v 1 357.57994 +47.25999 – – 247
2021-07-22 21:07:07 V 19 59 05.11 -09 49 29.1 13.1 V 247
2021-07-22 21:07:07 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:07:47 V 19 59 05.18 -09 49 22.9 13.1 V 247
2021-07-22 21:07:47 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:09:06 V 19 59 05.36 -09 49 08.9 13.2 V 247
2021-07-22 21:09:06 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:11:05 V 19 59 05.83 -09 48 48.9 13.0 V 247
2021-07-22 21:11:05 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:12:25 V 19 59 06.11 -09 48 33.9 13.6 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)