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
2021-07-20 15:04:31 V 19 48 09.18 -19 21 45.6 12.8 V 247
2021-07-20 15:04:31 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:05:16 V 19 48 09.48 -19 21 36.4 12.8 V 247
2021-07-20 15:05:16 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:05:56 V 19 48 09.59 -19 21 28.9 12.8 V 247
2021-07-20 15:05:56 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:06:38 V 19 48 09.53 -19 21 22.3 12.8 V 247
2021-07-20 15:06:38 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:08:45 V 19 48 10.10 -19 20 58.8 12.8 V 247
2021-07-20 15:08:45 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:09:32 V 19 48 10.14 -19 20 51.0 12.8 V 247
2021-07-20 15:09:32 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:10:18 V 19 48 10.28 -19 20 43.0 12.6 V 247
2021-07-20 15:10:18 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:11:00 V 19 48 10.32 -19 20 36.8 12.9 V 247
2021-07-20 15:11:00 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:24:27 V 19 48 12.78 -19 18 12.9 12.9 V 247
2021-07-20 15:24:27 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:25:07 V 19 48 12.89 -19 18 06.4 12.9 V 247
2021-07-20 15:25:07 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:25:47 V 19 48 13.02 -19 17 59.2 12.9 V 247
2021-07-20 15:25:47 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:26:26 V 19 48 13.12 -19 17 52.4 12.9 V 247
2021-07-20 15:26:26 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:27:06 V 19 48 13.23 -19 17 45.6 12.9 V 247
2021-07-20 15:27:06 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:27:46 V 19 48 13.35 -19 17 39.0 12.9 V 247
2021-07-20 15:27:46 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:28:26 V 19 48 13.44 -19 17 31.6 12.9 V 247
2021-07-20 15:28:26 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:29:05 V 19 48 13.61 -19 17 24.6 12.8 V 247
2021-07-20 15:29:05 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:29:45 V 19 48 13.73 -19 17 17.4 12.8 V 247
2021-07-20 15:29:45 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:30:25 V 19 48 13.82 -19 17 10.9 12.8 V 247
2021-07-20 15:30:25 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:31:04 V 19 48 13.96 -19 17 03.0 12.8 V 247
2021-07-20 15:31:04 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:31:44 V 19 48 14.02 -19 16 56.9 12.9 V 247
2021-07-20 15:31:44 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:32:24 V 19 48 14.16 -19 16 50.1 12.9 V 247
2021-07-20 15:32:24 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:33:04 V 19 48 14.28 -19 16 42.5 12.9 V 247
2021-07-20 15:33:04 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:33:43 V 19 48 14.42 -19 16 34.7 12.9 V 247
2021-07-20 15:33:43 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:34:23 V 19 48 14.49 -19 16 29.2 12.8 V 247
2021-07-20 15:34:23 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:35:03 V 19 48 14.64 -19 16 21.7 12.9 V 247
2021-07-20 15:35:03 v 1 140.47340 +35.98948 – – 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)