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 22:36:44 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:37:32 C 20 30 59.27 +18 49 39.3 – V Z80
2021-07-30 22:37:43 V 20 30 59.38 +18 49 49.5 14.6 V 247
2021-07-30 22:37:43 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:38:43 V 20 30 59.49 +18 49 56.1 14.6 V 247
2021-07-30 22:38:43 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:39:42 V 20 30 59.61 +18 50 02.9 14.5 V 247
2021-07-30 22:39:42 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:40:42 V 20 30 59.71 +18 50 09.3 14.4 V 247
2021-07-30 22:40:42 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:41:42 V 20 30 59.84 +18 50 16.0 14.4 V 247
2021-07-30 22:41:42 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:42:41 V 20 30 59.94 +18 50 22.5 14.6 V 247
2021-07-30 22:42:41 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:43:41 V 20 31 00.07 +18 50 29.2 14.7 V 247
2021-07-30 22:43:41 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:44:40 V 20 31 00.17 +18 50 35.7 14.7 V 247
2021-07-30 22:44:40 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:45:40 V 20 31 00.30 +18 50 42.6 14.7 V 247
2021-07-30 22:45:40 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:46:39 V 20 31 00.42 +18 50 49.4 14.5 V 247
2021-07-30 22:46:39 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:47:39 V 20 31 00.53 +18 50 56.0 14.4 V 247
2021-07-30 22:47:39 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:48:39 V 20 31 00.65 +18 51 02.5 14.5 V 247
2021-07-30 22:48:39 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:49:38 V 20 31 00.76 +18 51 09.2 14.4 V 247
2021-07-30 22:49:38 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:50:38 V 20 31 00.87 +18 51 15.7 14.5 V 247
2021-07-30 22:50:38 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:51:37 V 20 31 00.99 +18 51 22.4 14.3 V 247
2021-07-30 22:51:37 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:52:37 V 20 31 01.11 +18 51 29.3 14.4 V 247
2021-07-30 22:52:37 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:53:36 V 20 31 01.23 +18 51 35.8 14.7 V 247
2021-07-30 22:53:36 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:54:36 V 20 31 01.35 +18 51 42.5 14.4 V 247
2021-07-30 22:54:36 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:55:36 V 20 31 01.46 +18 51 48.9 14.0 V 247
2021-07-30 22:55:36 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:57:35 V 20 31 01.62 +18 52 01.9 14.0 V 247
2021-07-30 22:57:35 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:58:34 V 20 31 01.81 +18 52 09.1 14.0 V 247
2021-07-30 22:58:34 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:59:34 V 20 31 01.92 +18 52 15.1 14.3 V 247
2021-07-30 22:59:34 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:00:33 V 20 31 02.04 +18 52 22.6 14.5 V 247
2021-07-30 23:00:33 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:04:11 V 20 31 02.45 +18 52 47.0 14.6 V 247
2021-07-30 23:04:11 v 1 000.64801 +45.99236 – – 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)