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 22:11:07 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:12:07 V 20 30 56.29 +18 46 56.5 14.5 V 247
2021-07-30 22:12:07 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:13:07 V 20 30 56.42 +18 47 03.5 14.6 V 247
2021-07-30 22:13:07 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:14:06 V 20 30 56.54 +18 47 09.9 14.3 V 247
2021-07-30 22:14:06 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:15:06 V 20 30 56.65 +18 47 16.5 14.4 V 247
2021-07-30 22:15:06 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:16:05 V 20 30 56.78 +18 47 23.4 14.3 V 247
2021-07-30 22:16:05 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:17:05 V 20 30 56.90 +18 47 30.1 14.3 V 247
2021-07-30 22:17:05 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:18:04 V 20 30 57.00 +18 47 36.2 14.2 V 247
2021-07-30 22:18:04 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:19:04 V 20 30 57.12 +18 47 43.0 14.4 V 247
2021-07-30 22:19:04 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:21:50 V 20 30 57.50 +18 48 02.8 14.4 V 247
2021-07-30 22:21:50 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:22:50 V 20 30 57.62 +18 48 09.4 14.6 V 247
2021-07-30 22:22:50 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:23:49 V 20 30 57.74 +18 48 16.4 14.8 V 247
2021-07-30 22:23:49 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:24:49 V 20 30 57.86 +18 48 22.9 14.5 V 247
2021-07-30 22:24:49 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:25:49 V 20 30 57.97 +18 48 29.0 14.0 V 247
2021-07-30 22:25:49 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:27:48 V 20 30 58.15 +18 48 41.9 14.0 V 247
2021-07-30 22:27:48 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:28:02 C 20 30 55.47 +18 48 44.6 – V 089
2021-07-30 22:28:47 V 20 30 58.32 +18 48 49.3 14.1 V 247
2021-07-30 22:28:47 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:29:47 V 20 30 58.44 +18 48 56.1 14.3 V 247
2021-07-30 22:29:47 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:30:46 V 20 30 58.55 +18 49 02.8 14.5 V 247
2021-07-30 22:30:46 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:31:20 C 20 30 55.82 +18 49 06.3 – V 089
2021-07-30 22:31:46 V 20 30 58.66 +18 49 09.3 15.4 V 247
2021-07-30 22:31:46 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:32:45 V 20 30 58.80 +18 49 16.0 15.0 V 247
2021-07-30 22:32:45 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:33:45 V 20 30 58.91 +18 49 22.5 14.7 V 247
2021-07-30 22:33:45 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:34:12 C 20 30 58.82 +18 49 16.8 – V Z80
2021-07-30 22:34:45 V 20 30 59.02 +18 49 29.3 14.6 V 247
2021-07-30 22:34:45 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:35:44 V 20 30 59.12 +18 49 36.6 14.7 V 247
2021-07-30 22:35:44 v 1 000.64801 +45.99236 – – 247
2021-07-30 22:35:52 C 20 30 59.07 +18 49 28.1 – V Z80
2021-07-30 22:36:44 V 20 30 59.23 +18 49 42.7 14.6 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)