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
2021-07-21 16:35:41 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:36:21 V 19 53 20.94 -14 51 26.1 13.0 V 247
2021-07-21 16:36:21 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:37:00 V 19 53 21.05 -14 51 19.2 13.0 V 247
2021-07-21 16:37:00 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:37:40 V 19 53 21.16 -14 51 12.1 13.0 V 247
2021-07-21 16:37:40 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:38:20 V 19 53 21.28 -14 51 05.5 12.9 V 247
2021-07-21 16:38:20 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:38:59 V 19 53 21.40 -14 50 58.3 13.0 V 247
2021-07-21 16:38:59 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:39:39 V 19 53 21.53 -14 50 51.6 13.0 V 247
2021-07-21 16:39:39 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:40:19 V 19 53 21.62 -14 50 44.4 13.0 V 247
2021-07-21 16:40:19 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:40:58 V 19 53 21.76 -14 50 36.6 13.0 V 247
2021-07-21 16:40:58 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:41:38 V 19 53 21.89 -14 50 29.2 13.0 V 247
2021-07-21 16:41:38 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:42:18 V 19 53 21.99 -14 50 22.7 12.9 V 247
2021-07-21 16:42:18 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:42:58 V 19 53 22.09 -14 50 15.5 13.0 V 247
2021-07-21 16:42:58 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:43:37 V 19 53 22.20 -14 50 08.4 13.0 V 247
2021-07-21 16:43:37 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:44:17 V 19 53 22.33 -14 50 01.4 13.1 V 247
2021-07-21 16:44:17 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:46:16 V 19 53 22.69 -14 49 39.9 13.1 V 247
2021-07-21 16:46:16 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:48:15 V 19 53 23.01 -14 49 19.0 12.7 V 247
2021-07-21 16:48:15 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:50:54 V 19 53 23.46 -14 48 50.8 13.0 V 247
2021-07-21 16:50:54 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:51:34 V 19 53 23.59 -14 48 43.5 13.0 V 247
2021-07-21 16:51:34 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:57:31 V 19 53 24.62 -14 47 40.0 12.9 V 247
2021-07-21 16:57:31 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:58:10 V 19 53 24.74 -14 47 32.7 13.0 V 247
2021-07-21 16:58:10 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:58:50 V 19 53 24.85 -14 47 25.4 13.0 V 247
2021-07-21 16:58:50 v 1 139.83805 +35.03755 – – 247
2021-07-21 16:59:30 V 19 53 24.97 -14 47 18.5 12.9 V 247
2021-07-21 16:59:30 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:00:09 V 19 53 25.09 -14 47 11.3 13.0 V 247
2021-07-21 17:00:09 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:00:49 V 19 53 25.20 -14 47 04.6 12.9 V 247
2021-07-21 17:00:49 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:01:29 V 19 53 25.33 -14 46 57.2 13.0 V 247
2021-07-21 17:01:29 v 1 139.83805 +35.03755 – – 247
2021-07-21 17:02:09 V 19 53 25.44 -14 46 50.3 12.9 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)