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
2021-07-25 05:21:21 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:21:57 V 20 09 29.16 -00 12 32.8 13.4 V 247
2021-07-25 05:21:57 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:22:13 V 20 09 28.49 -00 12 47.6 13.5 V 247
2021-07-25 05:22:13 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:22:49 V 20 09 29.26 -00 12 26.0 13.6 V 247
2021-07-25 05:22:49 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:23:04 V 20 09 28.65 -00 12 37.9 13.6 V 247
2021-07-25 05:23:04 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:23:40 V 20 09 29.46 -00 12 16.0 13.6 V 247
2021-07-25 05:23:40 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:23:56 V 20 09 28.82 -00 12 29.1 13.5 V 247
2021-07-25 05:23:56 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:24:32 V 20 09 29.54 -00 12 07.7 13.6 V 247
2021-07-25 05:24:32 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:25:24 V 20 09 29.65 -00 12 00.0 13.5 V 247
2021-07-25 05:25:24 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:25:39 V 20 09 29.05 -00 12 12.7 13.6 V 247
2021-07-25 05:25:39 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:26:15 V 20 09 29.81 -00 11 51.5 13.6 V 247
2021-07-25 05:26:15 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:26:31 V 20 09 29.20 -00 12 04.2 13.6 V 247
2021-07-25 05:26:31 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:27:07 V 20 09 29.93 -00 11 42.8 13.8 V 247
2021-07-25 05:27:07 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:27:23 V 20 09 29.34 -00 11 55.3 13.5 V 247
2021-07-25 05:27:23 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:27:59 V 20 09 30.09 -00 11 34.2 13.4 V 247
2021-07-25 05:27:59 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:28:14 V 20 09 29.45 -00 11 47.8 13.5 V 247
2021-07-25 05:28:14 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:28:50 V 20 09 30.20 -00 11 25.9 13.5 V 247
2021-07-25 05:28:50 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:29:06 V 20 09 29.61 -00 11 37.0 13.4 V 247
2021-07-25 05:29:06 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:29:42 V 20 09 30.36 -00 11 17.0 13.4 V 247
2021-07-25 05:29:42 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:29:57 V 20 09 29.75 -00 11 29.8 13.5 V 247
2021-07-25 05:29:57 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:30:33 V 20 09 30.48 -00 11 08.9 13.4 V 247
2021-07-25 05:30:33 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:30:49 V 20 09 29.88 -00 11 22.0 13.6 V 247
2021-07-25 05:30:49 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:31:25 V 20 09 30.62 -00 11 00.6 13.3 V 247
2021-07-25 05:31:25 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:31:41 V 20 09 30.01 -00 11 13.1 13.4 V 247
2021-07-25 05:31:41 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:32:17 V 20 09 30.75 -00 10 51.5 13.3 V 247
2021-07-25 05:32:17 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:33:08 V 20 09 30.84 -00 10 43.9 13.7 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)