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
2021-07-20 15:35:42 V 19 48 14.78 -19 16 14.8 12.9 V 247
2021-07-20 15:35:42 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:36:22 V 19 48 14.89 -19 16 07.0 12.9 V 247
2021-07-20 15:36:22 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:37:02 V 19 48 15.05 -19 16 00.3 13.0 V 247
2021-07-20 15:37:02 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:37:41 V 19 48 15.15 -19 15 53.3 12.6 V 247
2021-07-20 15:37:41 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:38:21 V 19 48 15.21 -19 15 47.0 12.9 V 247
2021-07-20 15:38:21 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:39:01 V 19 48 15.38 -19 15 39.5 12.8 V 247
2021-07-20 15:39:01 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:39:41 V 19 48 15.45 -19 15 32.3 13.1 V 247
2021-07-20 15:39:41 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:40:20 V 19 48 15.53 -19 15 25.5 13.1 V 247
2021-07-20 15:40:20 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:41:00 V 19 48 15.70 -19 15 19.3 13.0 V 247
2021-07-20 15:41:00 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:41:40 V 19 48 15.82 -19 15 11.0 12.5 V 247
2021-07-20 15:41:40 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:43:39 V 19 48 16.17 -19 14 51.5 12.5 V 247
2021-07-20 15:43:39 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:44:19 V 19 48 16.36 -19 14 45.1 12.7 V 247
2021-07-20 15:44:19 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:44:58 V 19 48 16.42 -19 14 37.5 13.1 V 247
2021-07-20 15:44:58 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:45:40 V 19 48 16.61 -19 14 28.4 12.9 V 247
2021-07-20 15:45:40 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:46:22 V 19 48 16.68 -19 14 22.6 13.0 V 247
2021-07-20 15:46:22 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:47:01 V 19 48 16.87 -19 14 15.1 13.0 V 247
2021-07-20 15:47:01 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:47:41 V 19 48 16.91 -19 14 08.2 12.9 V 247
2021-07-20 15:47:41 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:48:21 V 19 48 17.00 -19 14 01.0 12.9 V 247
2021-07-20 15:48:21 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:49:01 V 19 48 17.12 -19 13 55.2 12.9 V 247
2021-07-20 15:49:01 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:49:40 V 19 48 17.32 -19 13 46.8 12.9 V 247
2021-07-20 15:49:40 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:50:20 V 19 48 17.33 -19 13 40.7 12.9 V 247
2021-07-20 15:50:20 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:51:00 V 19 48 17.58 -19 13 32.4 12.9 V 247
2021-07-20 15:51:00 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:51:39 V 19 48 17.64 -19 13 26.1 13.0 V 247
2021-07-20 15:51:39 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:52:19 V 19 48 17.72 -19 13 20.0 13.0 V 247
2021-07-20 15:52:19 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:52:59 V 19 48 17.78 -19 13 13.5 13.0 V 247
2021-07-20 15:52:59 v 1 140.47340 +35.98948 – – 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)