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 02:48:34 V 20 13 12.47 +03 14 28.3 13.6 V 247
2021-07-26 02:48:34 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:49:33 V 20 13 12.63 +03 14 36.3 13.6 V 247
2021-07-26 02:49:33 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:50:33 V 20 13 12.80 +03 14 45.4 14.0 V 247
2021-07-26 02:50:33 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:51:32 V 20 13 12.93 +03 14 55.3 13.7 V 247
2021-07-26 02:51:32 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:52:32 V 20 13 13.10 +03 15 04.0 13.6 V 247
2021-07-26 02:52:32 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:53:31 V 20 13 13.27 +03 15 13.3 13.5 V 247
2021-07-26 02:53:31 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:55:31 V 20 13 13.51 +03 15 33.5 13.9 V 247
2021-07-26 02:55:31 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:56:30 V 20 13 13.67 +03 15 41.7 13.7 V 247
2021-07-26 02:56:30 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:57:30 V 20 13 13.82 +03 15 52.0 13.7 V 247
2021-07-26 02:57:30 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:01:51 V 20 13 14.42 +03 16 30.8 13.6 V 247
2021-07-26 03:01:51 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:02:51 V 20 13 14.55 +03 16 41.2 13.9 V 247
2021-07-26 03:02:51 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:03:51 V 20 13 14.70 +03 16 49.8 13.6 V 247
2021-07-26 03:03:51 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:04:50 V 20 13 14.83 +03 17 00.8 14.0 V 247
2021-07-26 03:04:50 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:05:50 V 20 13 15.03 +03 17 08.3 13.8 V 247
2021-07-26 03:05:50 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:06:49 V 20 13 15.17 +03 17 19.8 13.9 V 247
2021-07-26 03:06:49 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:08:48 V 20 13 15.48 +03 17 38.4 13.8 V 247
2021-07-26 03:08:48 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:09:48 V 20 13 15.63 +03 17 46.0 13.8 V 247
2021-07-26 03:09:48 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:10:48 V 20 13 15.73 +03 17 55.4 13.7 V 247
2021-07-26 03:10:48 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:12:47 V 20 13 16.04 +03 18 15.5 13.4 V 247
2021-07-26 03:12:47 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:13:46 V 20 13 16.21 +03 18 24.3 13.7 V 247
2021-07-26 03:13:46 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:14:46 V 20 13 16.32 +03 18 33.7 13.6 V 247
2021-07-26 03:14:46 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:15:45 V 20 13 16.45 +03 18 42.3 13.5 V 247
2021-07-26 03:15:45 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:17:45 V 20 13 16.76 +03 19 02.6 13.9 V 247
2021-07-26 03:17:45 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:18:44 V 20 13 16.88 +03 19 12.3 13.5 V 247
2021-07-26 03:18:44 v 1 273.41725 +30.43496 – – 247
2021-07-26 03:19:44 V 20 13 17.06 +03 19 21.9 13.5 V 247
2021-07-26 03:19:44 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)