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
2021-08-06 23:11:22 v 1 011.16234 +45.34063 – – 247
2021-08-06 23:12:22 V 20 51 11.13 +32 47 17.9 14.9 V 247
2021-08-06 23:12:22 v 1 011.16234 +45.34063 – – 247
2021-08-06 23:53:37 V 20 51 14.60 +32 49 43.3 15.4 V 247
2021-08-06 23:53:37 v 1 011.16234 +45.34063 – – 247
2021-08-07 04:05:40 V 20 51 45.81 +33 04 23.9 15.1 V 247
2021-08-07 04:05:40 v 1 240.91485 +34.23818 – – 247
2021-08-07 04:09:39 V 20 51 46.09 +33 04 37.9 15.1 V 247
2021-08-07 04:09:39 v 1 240.91485 +34.23818 – – 247
2021-08-07 04:10:38 V 20 51 46.27 +33 04 40.9 15.0 V 247
2021-08-07 04:10:38 v 1 240.91485 +34.23818 – – 247
2021-08-07 04:11:38 V 20 51 46.35 +33 04 44.9 15.1 V 247
2021-08-07 04:11:38 v 1 240.91485 +34.23818 – – 247
2021-08-07 15:59:56 V 20 52 52.30 +33 44 56.3 16.0 V 247
2021-08-07 15:59:56 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:00:56 V 20 52 52.38 +33 44 59.6 15.5 V 247
2021-08-07 16:00:56 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:01:55 V 20 52 52.45 +33 45 03.0 15.5 V 247
2021-08-07 16:01:55 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:02:55 V 20 52 52.53 +33 45 05.9 15.1 V 247
2021-08-07 16:02:55 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:03:54 V 20 52 52.61 +33 45 09.2 15.3 V 247
2021-08-07 16:03:54 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:04:54 V 20 52 52.70 +33 45 12.3 15.2 V 247
2021-08-07 16:04:54 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:05:54 V 20 52 52.77 +33 45 15.8 15.2 V 247
2021-08-07 16:05:54 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:06:55 V 20 52 52.85 +33 45 19.2 15.4 V 247
2021-08-07 16:06:55 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:07:57 V 20 52 52.94 +33 45 22.3 15.8 V 247
2021-08-07 16:07:57 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:16:09 V 20 52 53.59 +33 45 49.0 16.1 V 247
2021-08-07 16:16:09 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:17:09 V 20 52 53.67 +33 45 52.5 15.6 V 247
2021-08-07 16:17:09 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:18:08 V 20 52 53.75 +33 45 55.5 15.4 V 247
2021-08-07 16:18:08 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:19:08 V 20 52 53.82 +33 45 58.5 15.4 V 247
2021-08-07 16:19:08 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:20:07 V 20 52 53.90 +33 46 02.0 15.7 V 247
2021-08-07 16:20:07 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:21:07 V 20 52 53.96 +33 46 04.9 15.6 V 247
2021-08-07 16:21:07 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:22:06 V 20 52 54.05 +33 46 08.5 15.4 V 247
2021-08-07 16:22:06 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:23:06 V 20 52 54.10 +33 46 11.4 15.7 V 247
2021-08-07 16:23:06 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:24:06 V 20 52 54.20 +33 46 14.7 15.3 V 247
2021-08-07 16:24:06 v 1 134.17923 +34.51212 – – 247
2021-08-07 16:25:05 V 20 52 54.27 +33 46 17.9 15.2 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)