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
2021-08-07 16:25:05 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:26:07 V 20 52 54.36 +33 46 21.0 15.0 V 247
2021-08-07 16:26:07 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:27:12 V 20 52 54.47 +33 46 25.1 15.7 V 247
2021-08-07 16:27:12 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:28:12 V 20 52 54.58 +33 46 28.1 15.4 V 247
2021-08-07 16:28:12 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:29:27 V 20 52 54.64 +33 46 32.1 15.5 V 247
2021-08-07 16:29:27 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:30:27 V 20 52 54.70 +33 46 35.2 15.1 V 247
2021-08-07 16:30:27 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:31:26 V 20 52 54.78 +33 46 38.5 15.3 V 247
2021-08-07 16:31:26 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:32:26 V 20 52 54.85 +33 46 41.9 15.2 V 247
2021-08-07 16:32:26 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:33:26 V 20 52 54.94 +33 46 45.1 15.0 V 247
2021-08-07 16:33:26 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:34:25 V 20 52 55.04 +33 46 48.4 15.1 V 247
2021-08-07 16:34:25 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:35:25 V 20 52 55.10 +33 46 51.4 15.2 V 247
2021-08-07 16:35:25 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:36:24 V 20 52 55.18 +33 46 54.6 15.2 V 247
2021-08-07 16:36:24 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:37:32 V 20 52 55.26 +33 46 57.6 15.4 V 247
2021-08-07 16:37:32 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:38:39 V 20 52 55.40 +33 47 01.8 15.3 V 247
2021-08-07 16:38:39 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:45:14 V 20 52 55.92 +33 47 23.4 15.2 V 247
2021-08-07 16:45:14 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:46:13 V 20 52 55.99 +33 47 26.6 15.3 V 247
2021-08-07 16:46:13 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:51:23 V 20 52 56.40 +33 47 43.2 14.8 V 247
2021-08-07 16:51:23 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:52:23 V 20 52 56.47 +33 47 46.3 14.4 V 247
2021-08-07 16:52:23 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:53:22 V 20 52 56.55 +33 47 49.5 14.4 V 247
2021-08-07 16:53:22 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:54:22 V 20 52 56.63 +33 47 52.7 14.1 V 247
2021-08-07 16:54:22 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:55:21 V 20 52 56.67 +33 47 56.1 14.2 V 247
2021-08-07 16:55:21 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:56:21 V 20 52 56.78 +33 47 59.0 14.1 V 247
2021-08-07 16:56:21 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:57:20 V 20 52 56.87 +33 48 02.4 14.3 V 247
2021-08-07 16:57:20 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:58:20 V 20 52 56.95 +33 48 05.2 14.5 V 247
2021-08-07 16:58:20 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:59:20 V 20 52 57.04 +33 48 08.3 14.8 V 247
2021-08-07 16:59:20 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:04:17 V 20 52 57.44 +33 48 24.4 15.5 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)