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
2021-07-21 22:59:05 v 1 357.57994 +47.25999 – – 247
2021-07-21 22:59:45 V 19 54 43.22 -13 43 53.0 13.2 V 247
2021-07-21 22:59:45 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:00:25 V 19 54 43.36 -13 43 43.8 13.2 V 247
2021-07-21 23:00:25 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:01:04 V 19 54 43.44 -13 43 36.9 13.1 V 247
2021-07-21 23:01:04 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:01:44 V 19 54 43.56 -13 43 31.7 13.2 V 247
2021-07-21 23:01:44 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:02:24 V 19 54 43.72 -13 43 22.8 12.8 V 247
2021-07-21 23:02:24 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:13:39 V 19 54 45.70 -13 41 23.5 13.2 V 247
2021-07-21 23:13:39 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:16:18 V 19 54 46.10 -13 40 56.4 13.1 V 247
2021-07-21 23:16:18 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:18:17 V 19 54 46.48 -13 40 34.9 13.1 V 247
2021-07-21 23:18:17 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:20:16 V 19 54 46.79 -13 40 13.3 13.1 V 247
2021-07-21 23:20:16 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:20:56 V 19 54 46.88 -13 40 07.7 13.2 V 247
2021-07-21 23:20:56 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:21:36 V 19 54 47.03 -13 39 59.1 13.3 V 247
2021-07-21 23:21:36 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:22:15 V 19 54 47.10 -13 39 53.3 13.0 V 247
2021-07-21 23:22:15 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:22:55 V 19 54 47.22 -13 39 46.5 13.2 V 247
2021-07-21 23:22:55 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:23:35 V 19 54 47.33 -13 39 39.0 13.2 V 247
2021-07-21 23:23:35 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:24:15 V 19 54 47.45 -13 39 31.6 13.2 V 247
2021-07-21 23:24:15 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:24:54 V 19 54 47.57 -13 39 24.8 13.1 V 247
2021-07-21 23:24:54 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:25:34 V 19 54 47.69 -13 39 17.4 13.1 V 247
2021-07-21 23:25:34 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:26:14 V 19 54 47.81 -13 39 10.7 13.3 V 247
2021-07-21 23:26:14 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:26:53 V 19 54 47.90 -13 39 03.2 13.1 V 247
2021-07-21 23:26:53 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:27:33 V 19 54 48.04 -13 38 56.2 13.3 V 247
2021-07-21 23:27:33 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:28:13 V 19 54 48.17 -13 38 49.6 13.4 V 247
2021-07-21 23:28:13 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:28:53 V 19 54 48.23 -13 38 43.5 13.3 V 247
2021-07-21 23:28:53 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:29:32 V 19 54 48.39 -13 38 35.2 13.0 V 247
2021-07-21 23:29:32 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:30:12 V 19 54 48.48 -13 38 29.1 13.1 V 247
2021-07-21 23:30:12 v 1 357.57994 +47.25999 – – 247
2021-07-21 23:30:52 V 19 54 48.59 -13 38 22.4 13.2 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)