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
2021-07-22 00:14:10 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:15:29 V 19 54 56.31 -13 30 28.7 13.2 V 247
2021-07-22 00:15:29 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:16:48 V 19 54 56.55 -13 30 14.2 13.2 V 247
2021-07-22 00:16:48 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:20:07 V 19 54 57.08 -13 29 39.4 12.9 V 247
2021-07-22 00:20:07 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:20:47 V 19 54 57.21 -13 29 31.5 13.4 V 247
2021-07-22 00:20:47 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:21:27 V 19 54 57.34 -13 29 25.3 13.2 V 247
2021-07-22 00:21:27 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:22:06 V 19 54 57.45 -13 29 18.1 13.0 V 247
2021-07-22 00:22:06 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:22:46 V 19 54 57.55 -13 29 10.9 13.0 V 247
2021-07-22 00:22:46 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:23:26 V 19 54 57.73 -13 29 03.8 13.3 V 247
2021-07-22 00:23:26 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:24:05 V 19 54 57.84 -13 28 56.0 13.1 V 247
2021-07-22 00:24:05 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:24:45 V 19 54 57.96 -13 28 49.4 12.9 V 247
2021-07-22 00:24:45 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:28:04 V 19 54 58.48 -13 28 14.3 13.4 V 247
2021-07-22 00:28:04 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:29:23 V 19 54 58.79 -13 27 59.7 13.4 V 247
2021-07-22 00:29:23 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:32:53 V 19 54 59.32 -13 27 22.3 12.9 V 247
2021-07-22 00:32:53 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:33:33 V 19 54 59.43 -13 27 15.4 13.1 V 247
2021-07-22 00:33:33 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:34:12 V 19 54 59.56 -13 27 08.0 13.0 V 247
2021-07-22 00:34:12 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:34:52 V 19 54 59.63 -13 27 01.8 13.2 V 247
2021-07-22 00:34:52 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:35:32 V 19 54 59.84 -13 26 54.5 13.2 V 247
2021-07-22 00:35:32 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:36:11 V 19 54 59.94 -13 26 47.8 13.0 V 247
2021-07-22 00:36:11 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:53:40 V 19 55 02.85 -13 23 42.2 13.3 V 247
2021-07-22 00:53:40 v 1 357.57994 +47.25999 – – 247
2021-07-22 00:54:59 V 19 55 03.12 -13 23 28.4 13.1 V 247
2021-07-22 00:54:59 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:06:05 V 19 55 05.07 -13 21 29.5 12.6 V 247
2021-07-22 01:06:05 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:06:45 V 19 55 05.19 -13 21 22.0 13.5 V 247
2021-07-22 01:06:45 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:08:44 V 19 55 05.50 -13 21 00.3 13.1 V 247
2021-07-22 01:08:44 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:10:04 V 19 55 05.74 -13 20 47.5 13.2 V 247
2021-07-22 01:10:04 v 1 357.57994 +47.25999 – – 247
2021-07-22 01:10:43 V 19 55 05.86 -13 20 40.6 13.0 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)