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 14:39:59 V 19 48 04.96 -19 26 02.1 12.9 V 247
2021-07-20 14:39:59 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:40:39 V 19 48 05.04 -19 25 55.4 12.8 V 247
2021-07-20 14:40:39 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:41:19 V 19 48 05.14 -19 25 48.8 12.9 V 247
2021-07-20 14:41:19 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:41:58 V 19 48 05.29 -19 25 41.5 12.9 V 247
2021-07-20 14:41:58 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:42:38 V 19 48 05.44 -19 25 34.2 12.8 V 247
2021-07-20 14:42:38 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:43:20 V 19 48 05.47 -19 25 27.9 12.8 V 247
2021-07-20 14:43:20 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:44:41 V 19 48 05.73 -19 25 12.8 12.8 V 247
2021-07-20 14:44:41 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:45:21 V 19 48 05.99 -19 25 05.8 12.7 V 247
2021-07-20 14:45:21 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:46:40 V 19 48 06.15 -19 24 51.7 12.4 V 247
2021-07-20 14:46:40 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:47:20 V 19 48 06.21 -19 24 44.9 12.7 V 247
2021-07-20 14:47:20 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:48:04 V 19 48 06.36 -19 24 36.7 12.7 V 247
2021-07-20 14:48:04 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:48:44 V 19 48 06.40 -19 24 31.0 12.8 V 247
2021-07-20 14:48:44 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:49:23 V 19 48 06.48 -19 24 23.2 12.8 V 247
2021-07-20 14:49:23 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:50:45 V 19 48 06.79 -19 24 09.9 12.7 V 247
2021-07-20 14:50:45 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:53:31 V 19 48 07.35 -19 23 39.3 12.7 V 247
2021-07-20 14:53:31 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:54:13 V 19 48 07.45 -19 23 32.6 12.6 V 247
2021-07-20 14:54:13 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:54:53 V 19 48 07.48 -19 23 25.6 12.8 V 247
2021-07-20 14:54:53 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:55:35 V 19 48 07.53 -19 23 18.8 12.8 V 247
2021-07-20 14:55:35 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:57:08 V 19 48 07.96 -19 23 00.9 12.9 V 247
2021-07-20 14:57:08 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:57:52 V 19 48 08.03 -19 22 53.8 12.9 V 247
2021-07-20 14:57:52 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:58:33 V 19 48 08.15 -19 22 47.6 12.9 V 247
2021-07-20 14:58:33 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:01:34 V 19 48 08.73 -19 22 14.2 12.9 V 247
2021-07-20 15:01:34 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:02:18 V 19 48 08.89 -19 22 08.3 12.8 V 247
2021-07-20 15:02:18 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:02:57 V 19 48 08.97 -19 22 00.1 12.8 V 247
2021-07-20 15:02:57 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:03:41 V 19 48 09.11 -19 21 53.1 12.8 V 247
2021-07-20 15:03:41 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)