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
2021-08-04 17:13:59 S 20 46 50.508 +28 40 06.02 – V C57
2021-08-04 17:13:59 s 1 -199617.96 5 +96289.335 9550.0 – C57
2021-08-04 17:14:56 V 20 45 17.93 +29 15 24.3 14.4 V 247
2021-08-04 17:14:56 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:15:56 V 20 45 18.03 +29 15 28.5 14.5 V 247
2021-08-04 17:15:56 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:16:56 V 20 45 18.14 +29 15 32.6 14.8 V 247
2021-08-04 17:16:56 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:23:59 S 20 46 52.068 +28 40 55.67 – V C57
2021-08-04 17:23:59 s 1 -199465.13 6 +95490.807 7710.0 – C57
2021-08-04 17:25:52 V 20 45 18.95 +29 16 10.8 15.2 V 247
2021-08-04 17:25:52 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:26:51 V 20 45 19.07 +29 16 15.0 15.0 V 247
2021-08-04 17:26:51 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:27:51 V 20 45 19.12 +29 16 19.1 14.8 V 247
2021-08-04 17:27:51 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:28:50 V 20 45 19.23 +29 16 23.0 14.8 V 247
2021-08-04 17:28:50 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:29:50 V 20 45 19.30 +29 16 28.0 14.8 V 247
2021-08-04 17:29:50 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:30:50 V 20 45 19.42 +29 16 32.0 14.7 V 247
2021-08-04 17:30:50 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:31:49 V 20 45 19.52 +29 16 36.5 15.1 V 247
2021-08-04 17:31:49 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:32:49 V 20 45 19.61 +29 16 40.5 15.1 V 247
2021-08-04 17:32:49 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:33:48 V 20 45 19.72 +29 16 44.5 15.0 V 247
2021-08-04 17:33:48 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:34:48 V 20 45 19.81 +29 16 48.8 15.0 V 247
2021-08-04 17:34:48 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:35:47 V 20 45 19.90 +29 16 52.9 15.0 V 247
2021-08-04 17:35:47 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:36:47 V 20 45 19.99 +29 16 57.1 14.8 V 247
2021-08-04 17:36:47 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:42:31 V 20 45 20.56 +29 17 21.6 14.9 V 247
2021-08-04 17:42:31 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:43:31 V 20 45 20.66 +29 17 25.7 14.6 V 247
2021-08-04 17:43:31 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:44:30 V 20 45 20.73 +29 17 29.6 14.3 V 247
2021-08-04 17:44:30 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:46:37 V 20 45 20.93 +29 17 40.3 14.2 V 247
2021-08-04 17:46:37 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:47:37 V 20 45 21.02 +29 17 42.8 14.2 V 247
2021-08-04 17:47:37 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:48:36 V 20 45 21.15 +29 17 47.5 14.4 V 247
2021-08-04 17:48:36 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:49:36 V 20 45 21.23 +29 17 51.3 14.4 V 247
2021-08-04 17:49:36 v 1 134.17920 +34.51211 – – 247
2021-08-04 17:50:35 V 20 45 21.32 +29 17 55.6 14.7 V 247
2021-08-04 17:50:35 v 1 134.17920 +34.51211 – – 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)