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 23:05:11 V 20 31 02.58 +18 52 53.5 14.1 V 247
2021-07-30 23:05:11 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:06:10 V 20 31 02.69 +18 53 00.3 13.7 V 247
2021-07-30 23:06:10 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:07:10 V 20 31 02.80 +18 53 06.8 13.7 V 247
2021-07-30 23:07:10 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:08:09 V 20 31 02.92 +18 53 13.2 14.1 V 247
2021-07-30 23:08:09 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:09:09 V 20 31 03.05 +18 53 20.4 14.6 V 247
2021-07-30 23:09:09 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:10:09 V 20 31 03.15 +18 53 26.5 15.2 V 247
2021-07-30 23:10:09 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:11:08 V 20 31 03.27 +18 53 33.2 15.1 V 247
2021-07-30 23:11:08 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:12:08 V 20 31 03.38 +18 53 39.8 14.6 V 247
2021-07-30 23:12:08 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:13:07 V 20 31 03.49 +18 53 46.7 14.5 V 247
2021-07-30 23:13:07 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:14:07 V 20 31 03.62 +18 53 53.4 14.8 V 247
2021-07-30 23:14:07 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:15:06 V 20 31 03.73 +18 53 59.7 14.8 V 247
2021-07-30 23:15:06 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:16:06 V 20 31 03.85 +18 54 06.3 14.3 V 247
2021-07-30 23:16:06 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:17:06 V 20 31 03.97 +18 54 12.8 13.8 V 247
2021-07-30 23:17:06 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:18:05 V 20 31 04.00 +18 54 21.2 13.7 V 247
2021-07-30 23:18:05 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:19:05 V 20 31 04.20 +18 54 25.3 13.7 V 247
2021-07-30 23:19:05 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:20:04 V 20 31 04.32 +18 54 32.2 13.7 V 247
2021-07-30 23:20:04 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:21:04 V 20 31 04.43 +18 54 39.6 14.2 V 247
2021-07-30 23:21:04 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:22:03 V 20 31 04.56 +18 54 45.9 14.5 V 247
2021-07-30 23:22:03 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:23:03 V 20 31 04.67 +18 54 52.7 14.4 V 247
2021-07-30 23:23:03 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:24:03 V 20 31 04.78 +18 54 59.0 14.4 V 247
2021-07-30 23:24:03 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:25:02 V 20 31 04.90 +18 55 05.9 14.4 V 247
2021-07-30 23:25:02 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:26:02 V 20 31 05.01 +18 55 12.1 14.4 V 247
2021-07-30 23:26:02 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:27:01 V 20 31 05.14 +18 55 19.2 14.3 V 247
2021-07-30 23:27:01 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:28:01 V 20 31 05.24 +18 55 25.5 14.5 V 247
2021-07-30 23:28:01 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:29:00 V 20 31 05.36 +18 55 32.6 14.9 V 247
2021-07-30 23:29:00 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)