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
2021-07-30 21:46:18 V 20 30 53.24 +18 44 02.6 14.3 V 247
2021-07-30 21:46:18 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:47:18 V 20 30 53.35 +18 44 09.2 14.4 V 247
2021-07-30 21:47:18 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:48:20 C 20 30 50.82 +18 44 18.6 – V 089
2021-07-30 21:49:17 V 20 30 53.59 +18 44 22.5 14.7 V 247
2021-07-30 21:49:17 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:50:17 V 20 30 53.72 +18 44 29.3 14.0 V 247
2021-07-30 21:50:17 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:51:16 V 20 30 53.83 +18 44 36.1 13.6 V 247
2021-07-30 21:51:16 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:52:16 V 20 30 53.97 +18 44 43.1 13.5 V 247
2021-07-30 21:52:16 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:53:15 V 20 30 54.07 +18 44 49.2 13.7 V 247
2021-07-30 21:53:15 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:54:15 V 20 30 54.20 +18 44 56.3 14.5 V 247
2021-07-30 21:54:15 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:55:14 V 20 30 54.30 +18 45 02.7 15.0 V 247
2021-07-30 21:55:14 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:56:14 V 20 30 54.42 +18 45 09.7 14.6 V 247
2021-07-30 21:56:14 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:57:13 V 20 30 54.54 +18 45 16.4 14.3 V 247
2021-07-30 21:57:13 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:58:13 V 20 30 54.66 +18 45 22.8 14.3 V 247
2021-07-30 21:58:13 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:59:13 V 20 30 54.78 +18 45 29.8 14.2 V 247
2021-07-30 21:59:13 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:00:12 V 20 30 54.90 +18 45 36.6 14.2 V 247
2021-07-30 22:00:12 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:01:12 V 20 30 55.02 +18 45 43.3 14.2 V 247
2021-07-30 22:01:12 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:02:11 V 20 30 55.12 +18 45 49.5 14.3 V 247
2021-07-30 22:02:11 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:03:11 V 20 30 55.26 +18 45 56.7 14.4 V 247
2021-07-30 22:03:11 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:04:10 V 20 30 55.37 +18 46 03.1 14.6 V 247
2021-07-30 22:04:10 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:05:10 V 20 30 55.49 +18 46 10.0 15.0 V 247
2021-07-30 22:05:10 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:06:10 V 20 30 55.61 +18 46 16.5 14.6 V 247
2021-07-30 22:06:10 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:07:09 V 20 30 55.71 +18 46 22.9 14.3 V 247
2021-07-30 22:07:09 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:08:09 V 20 30 55.84 +18 46 29.9 13.9 V 247
2021-07-30 22:08:09 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:09:08 V 20 30 55.94 +18 46 36.7 13.7 V 247
2021-07-30 22:09:08 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:10:08 V 20 30 56.07 +18 46 43.1 13.8 V 247
2021-07-30 22:10:08 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:11:07 V 20 30 56.18 +18 46 49.8 14.3 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)