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
2021-07-29 05:39:55 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:40:54 V 20 25 07.05 +13 55 51.2 14.3 V 247
2021-07-29 05:40:54 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:41:54 V 20 25 07.16 +13 55 59.0 14.3 V 247
2021-07-29 05:41:54 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:42:53 V 20 25 07.31 +13 56 06.8 14.1 V 247
2021-07-29 05:42:53 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:43:53 V 20 25 07.44 +13 56 15.0 14.1 V 247
2021-07-29 05:43:53 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:44:52 V 20 25 07.55 +13 56 22.7 14.2 V 247
2021-07-29 05:44:52 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:48:51 V 20 25 08.11 +13 56 53.6 13.7 V 247
2021-07-29 05:48:51 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:49:50 V 20 25 08.24 +13 57 00.7 13.8 V 247
2021-07-29 05:49:50 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:50:50 V 20 25 08.34 +13 57 07.8 14.6 V 247
2021-07-29 05:50:50 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:52:49 V 20 25 08.63 +13 57 23.4 14.7 V 247
2021-07-29 05:52:49 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:59:20 V 20 25 09.45 +13 58 13.9 14.3 V 247
2021-07-29 05:59:20 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:01:19 V 20 25 09.69 +13 58 29.4 13.6 V 247
2021-07-29 06:01:19 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:02:19 V 20 25 09.81 +13 58 38.8 13.5 V 247
2021-07-29 06:02:19 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:04:18 V 20 25 10.10 +13 58 51.9 13.7 V 247
2021-07-29 06:04:18 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:05:18 V 20 25 10.21 +13 59 00.2 14.2 V 247
2021-07-29 06:05:18 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:06:17 V 20 25 10.37 +13 59 08.3 14.4 V 247
2021-07-29 06:06:17 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:07:17 V 20 25 10.48 +13 59 15.2 14.2 V 247
2021-07-29 06:07:17 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:08:16 V 20 25 10.61 +13 59 22.8 14.3 V 247
2021-07-29 06:08:16 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:09:16 V 20 25 10.72 +13 59 30.9 14.2 V 247
2021-07-29 06:09:16 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:10:15 V 20 25 10.79 +13 59 39.9 14.1 V 247
2021-07-29 06:10:15 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:11:15 V 20 25 10.94 +13 59 46.5 14.0 V 247
2021-07-29 06:11:15 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:12:15 V 20 25 11.10 +13 59 54.1 13.9 V 247
2021-07-29 06:12:15 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:13:14 V 20 25 11.23 +14 00 01.3 13.9 V 247
2021-07-29 06:13:14 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:14:14 V 20 25 11.37 +14 00 08.9 13.9 V 247
2021-07-29 06:14:14 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:15:13 V 20 25 11.48 +14 00 17.2 13.9 V 247
2021-07-29 06:15:13 v 1 236.86566 +49.13793 – – 247
2021-07-29 06:16:13 V 20 25 11.61 +14 00 24.5 14.2 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)