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 03:21:43 V 20 13 17.30 +03 19 38.1 13.8 V 247
2021-07-26 03:21:43 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:22:42 V 20 13 17.44 +03 19 49.3 13.5 V 247
2021-07-26 03:22:42 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:23:42 V 20 13 17.65 +03 19 58.2 13.7 V 247
2021-07-26 03:23:42 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:24:42 V 20 13 17.77 +03 20 07.9 13.5 V 247
2021-07-26 03:24:42 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:25:41 V 20 13 17.89 +03 20 16.2 13.6 V 247
2021-07-26 03:25:41 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:26:41 V 20 13 18.09 +03 20 27.2 13.6 V 247
2021-07-26 03:26:41 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:27:40 V 20 13 18.22 +03 20 37.1 13.4 V 247
2021-07-26 03:27:40 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:28:40 V 20 13 18.32 +03 20 46.1 13.7 V 247
2021-07-26 03:28:40 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:30:39 V 20 13 18.66 +03 21 04.2 13.6 V 247
2021-07-26 03:30:39 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:31:38 V 20 13 18.78 +03 21 12.6 13.6 V 247
2021-07-26 03:31:38 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:32:38 V 20 13 18.90 +03 21 23.2 13.6 V 247
2021-07-26 03:32:38 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:36:36 V 20 13 19.51 +03 21 59.8 13.4 V 247
2021-07-26 03:36:36 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:44:09 V 20 13 20.48 +03 23 12.1 13.7 V 247
2021-07-26 03:44:09 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:45:08 V 20 13 20.58 +03 23 19.6 13.8 V 247
2021-07-26 03:45:08 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:46:08 V 20 13 20.78 +03 23 31.0 13.6 V 247
2021-07-26 03:46:08 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:47:08 V 20 13 20.86 +03 23 38.1 13.8 V 247
2021-07-26 03:47:08 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:48:07 V 20 13 21.06 +03 23 50.0 13.7 V 247
2021-07-26 03:48:07 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:50:06 V 20 13 21.31 +03 24 07.0 13.7 V 247
2021-07-26 03:50:06 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:51:06 V 20 13 21.43 +03 24 17.1 13.6 V 247
2021-07-26 03:51:06 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:53:05 V 20 13 21.75 +03 24 36.0 13.7 V 247
2021-07-26 03:53:05 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:56:16 V 20 13 22.16 +03 25 05.6 13.9 V 247
2021-07-26 03:56:16 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:58:15 V 20 13 22.46 +03 25 23.4 13.8 V 247
2021-07-26 03:58:15 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:59:14 V 20 13 22.61 +03 25 34.0 13.8 V 247
2021-07-26 03:59:14 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:00:14 V 20 13 22.73 +03 25 43.9 13.8 V 247
2021-07-26 04:00:14 v 1 273.41725 +30.43496 – – 247
2021-07-26 04:01:13 V 20 13 22.90 +03 25 51.9 13.9 V 247
2021-07-26 04:01:13 v 1 273.41725 +30.43496 – – 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)