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
2021-07-30 23:30:00 V 20 31 05.48 +18 55 38.7 14.6 V 247
2021-07-30 23:30:00 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:30:59 V 20 31 05.59 +18 55 45.7 13.8 V 247
2021-07-30 23:30:59 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:33:58 V 20 31 05.93 +18 56 04.6 13.7 V 247
2021-07-30 23:33:58 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:34:58 V 20 31 06.02 +18 56 11.7 14.3 V 247
2021-07-30 23:34:58 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:35:57 V 20 31 06.15 +18 56 18.5 14.9 V 247
2021-07-30 23:35:57 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:36:57 V 20 31 06.26 +18 56 25.3 14.4 V 247
2021-07-30 23:36:57 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:37:56 V 20 31 06.38 +18 56 31.5 14.5 V 247
2021-07-30 23:37:56 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:38:56 V 20 31 06.48 +18 56 37.6 15.2 V 247
2021-07-30 23:38:56 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:39:56 V 20 31 06.60 +18 56 44.6 15.2 V 247
2021-07-30 23:39:56 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:40:55 V 20 31 06.73 +18 56 51.4 14.6 V 247
2021-07-30 23:40:55 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:41:55 V 20 31 06.83 +18 56 58.0 14.7 V 247
2021-07-30 23:41:55 v 1 000.64801 +45.99236 – – 247
2021-07-30 23:42:54 V 20 31 06.94 +18 57 04.5 14.6 V 247
2021-07-30 23:42:54 v 1 000.64801 +45.99236 – – 247
2021-07-31 02:28:28 V 20 31 33.85 +19 15 20.0 14.2 V 247
2021-07-31 02:28:28 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:33:26 V 20 31 34.36 +19 15 51.0 14.3 V 247
2021-07-31 02:33:26 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:38:24 V 20 31 34.93 +19 16 23.3 14.1 V 247
2021-07-31 02:38:24 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:45:21 V 20 31 35.83 +19 17 10.7 14.9 V 247
2021-07-31 02:45:21 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:46:20 V 20 31 35.98 +19 17 16.7 14.3 V 247
2021-07-31 02:46:20 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:47:20 V 20 31 36.08 +19 17 24.1 14.2 V 247
2021-07-31 02:47:20 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:48:19 V 20 31 36.27 +19 17 30.4 14.1 V 247
2021-07-31 02:48:19 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:51:18 V 20 31 36.65 +19 17 51.6 14.2 V 247
2021-07-31 02:51:18 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:53:17 V 20 31 36.85 +19 18 03.0 14.6 V 247
2021-07-31 02:53:17 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:54:17 V 20 31 37.02 +19 18 10.9 14.2 V 247
2021-07-31 02:54:17 v 1 272.10087 +43.08037 – – 247
2021-07-31 02:57:16 V 20 31 37.30 +19 18 30.6 14.7 V 247
2021-07-31 02:57:16 v 1 272.10087 +43.08037 – – 247
2021-07-31 03:01:14 V 20 31 37.78 +19 18 56.5 14.1 V 247
2021-07-31 03:01:14 v 1 272.10087 +43.08037 – – 247
2021-07-31 03:02:13 V 20 31 37.90 +19 19 04.7 14.0 V 247
2021-07-31 03:02:13 v 1 272.10087 +43.08037 – – 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)