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
2021-07-26 04:55:11 V 20 13 30.47 +03 34 21.3 13.8 V 247
2021-07-26 04:55:11 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:56:11 V 20 13 30.65 +03 34 30.3 13.8 V 247
2021-07-26 04:56:11 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:57:10 V 20 13 30.72 +03 34 38.2 13.8 V 247
2021-07-26 04:57:10 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:59:09 V 20 13 31.05 +03 34 58.3 13.6 V 247
2021-07-26 04:59:09 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:00:09 V 20 13 31.19 +03 35 07.1 13.6 V 247
2021-07-26 05:00:09 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:01:08 V 20 13 31.29 +03 35 14.7 13.7 V 247
2021-07-26 05:01:08 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:02:08 V 20 13 31.44 +03 35 25.8 14.1 V 247
2021-07-26 05:02:08 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:03:08 V 20 13 31.60 +03 35 34.7 14.2 V 247
2021-07-26 05:03:08 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:05:07 V 20 13 31.85 +03 35 52.9 13.7 V 247
2021-07-26 05:05:07 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:07:06 V 20 13 32.12 +03 36 11.9 13.8 V 247
2021-07-26 05:07:06 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:08:05 V 20 13 32.22 +03 36 20.6 13.8 V 247
2021-07-26 05:08:05 v 1 273.41725 +30.43496 – – 247
2021-07-26 05:10:05 V 20 13 32.53 +03 36 39.7 13.6 V 247
2021-07-26 05:10:05 v 1 273.41725 +30.43496 – – 247
2021-07-26 21:18:21 C 20 16 15.49 +06 04 37.6 – V G34
2021-07-26 21:20:42 C 20 16 15.83 +06 04 58.8 – V G34
2021-07-26 21:23:04 C 20 16 16.17 +06 05 20.3 – V G34
2021-07-26 21:23:30 C 20 16 17.24 +06 05 21.7 – V Z80
2021-07-26 21:23:31 C 20 16 14.73 +06 05 30.8 – V 089
2021-07-26 21:24:31 C 20 16 17.43 +06 05 31.6 – V Z80
2021-07-26 21:25:25 C 20 16 16.52 +06 05 41.4 – V G34
2021-07-26 21:25:31 C 20 16 17.54 +06 05 40.0 – V Z80
2021-07-26 21:26:50 C 20 16 15.19 +06 06 00.8 – V 089
2021-07-26 21:30:07 C 20 16 17.20 +06 06 24.0 – V G34
2021-07-26 21:30:08 C 20 16 15.64 +06 06 30.9 – V 089
2021-07-26 21:33:26 C 20 16 16.09 +06 07 00.6 – V 089
2021-07-26 21:33:26 C 20 16 17.00 +06 07 02.6 – V L54
2021-07-26 21:36:44 C 20 16 16.59 +06 07 30.0 – V 089
2021-07-26 21:40:02 C 20 16 17.03 +06 07 59.3 – V 089
2021-07-26 21:43:50 C 20 16 17.57 +06 08 34.1 – V 089
2021-07-26 21:47:09 C 20 16 18.03 +06 09 03.8 – V 089
2021-07-26 21:50:27 C 20 16 18.48 +06 09 34.2 – V 089
2021-07-26 21:53:45 C 20 16 18.95 +06 10 03.5 – V 089
2021-07-26 21:59:29 n 20 16 22.47 +06 10 43.9 – q Z92
2021-07-26 21:59:33 C 20 16 20.67 +06 10 58.2 – V L54
2021-07-26 22:19:43 n 20 16 25.43 +06 13 46.5 – q Z92
2021-07-26 22:25:59 C 20 16 24.37 +06 14 56.3 – V L54
2021-07-26 22:39:27 n 20 16 28.30 +06 16 44.3 – q Z92
2021-07-26 22:57:42 C 20 16 28.79 +06 19 41.7 – V L54
2021-07-26 22:59:24 n 20 16 31.18 +06 19 43.8 – q Z92
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)