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 17:04:17 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:05:17 V 20 52 57.51 +33 48 27.6 14.8 V 247
2021-08-07 17:05:17 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:06:17 V 20 52 57.60 +33 48 30.8 14.6 V 247
2021-08-07 17:06:17 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:07:16 V 20 52 57.71 +33 48 33.8 14.4 V 247
2021-08-07 17:07:16 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:08:16 V 20 52 57.78 +33 48 37.2 14.4 V 247
2021-08-07 17:08:16 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:09:15 V 20 52 57.85 +33 48 40.5 14.4 V 247
2021-08-07 17:09:15 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:10:15 V 20 52 57.91 +33 48 43.5 14.5 V 247
2021-08-07 17:10:15 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:11:14 V 20 52 58.00 +33 48 46.8 14.6 V 247
2021-08-07 17:11:14 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:12:14 V 20 52 58.08 +33 48 49.9 14.6 V 247
2021-08-07 17:12:14 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:13:14 V 20 52 58.17 +33 48 53.3 15.1 V 247
2021-08-07 17:13:14 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:14:13 V 20 52 58.26 +33 48 56.1 15.3 V 247
2021-08-07 17:14:13 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:15:13 V 20 52 58.33 +33 48 59.6 15.5 V 247
2021-08-07 17:15:13 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:16:12 V 20 52 58.41 +33 49 02.6 15.8 V 247
2021-08-07 17:16:12 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:17:12 V 20 52 58.49 +33 49 05.8 16.3 V 247
2021-08-07 17:17:12 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:18:11 V 20 52 58.57 +33 49 08.7 16.2 V 247
2021-08-07 17:18:11 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:21:10 V 20 52 58.81 +33 49 18.5 16.1 V 247
2021-08-07 17:21:10 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:22:10 V 20 52 58.89 +33 49 21.4 15.9 V 247
2021-08-07 17:22:10 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:24:09 V 20 52 59.06 +33 49 27.9 15.8 V 247
2021-08-07 17:24:09 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:28:59 V 20 52 59.45 +33 49 43.5 15.6 V 247
2021-08-07 17:28:59 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:29:59 V 20 52 59.56 +33 49 46.7 15.6 V 247
2021-08-07 17:29:59 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:30:58 V 20 52 59.63 +33 49 50.0 16.1 V 247
2021-08-07 17:30:58 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:31:58 V 20 52 59.71 +33 49 53.3 16.1 V 247
2021-08-07 17:31:58 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:32:57 V 20 52 59.79 +33 49 56.3 15.5 V 247
2021-08-07 17:32:57 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:33:57 V 20 52 59.87 +33 49 59.5 15.1 V 247
2021-08-07 17:33:57 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:34:56 V 20 52 59.96 +33 50 02.5 15.1 V 247
2021-08-07 17:34:56 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:35:56 V 20 53 00.03 +33 50 05.6 14.5 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)