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
2021-07-29 21:12:40 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:13:21 C 20 27 23.98 +15 52 19.6 – V G17
2021-07-29 21:13:40 V 20 27 24.38 +15 52 23.0 14.2 V 247
2021-07-29 21:13:40 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:14:41 C 20 27 24.15 +15 52 29.5 – V G17
2021-07-29 21:15:39 V 20 27 24.61 +15 52 37.3 14.3 V 247
2021-07-29 21:15:39 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:16:38 V 20 27 24.77 +15 52 44.7 14.2 V 247
2021-07-29 21:16:38 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:17:38 V 20 27 24.90 +15 52 51.8 14.3 V 247
2021-07-29 21:17:38 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:18:37 V 20 27 25.01 +15 52 59.2 14.2 V 247
2021-07-29 21:18:37 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:18:59 V 20 27 24.05 +15 52 55.0 14.1 V 247
2021-07-29 21:18:59 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:19:37 V 20 27 25.10 +15 53 06.5 14.2 V 247
2021-07-29 21:19:37 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:19:59 V 20 27 24.14 +15 53 02.8 14.0 V 247
2021-07-29 21:19:59 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:20:37 V 20 27 25.24 +15 53 13.9 14.1 V 247
2021-07-29 21:20:37 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:20:58 V 20 27 24.25 +15 53 10.3 14.0 V 247
2021-07-29 21:20:58 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:21:36 V 20 27 25.38 +15 53 21.5 14.3 V 247
2021-07-29 21:21:36 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:21:58 V 20 27 24.39 +15 53 16.6 14.0 V 247
2021-07-29 21:21:58 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:22:58 V 20 27 24.52 +15 53 23.9 14.1 V 247
2021-07-29 21:22:58 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:23:35 V 20 27 25.60 +15 53 36.1 14.3 V 247
2021-07-29 21:23:35 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:23:57 V 20 27 24.68 +15 53 31.0 14.2 V 247
2021-07-29 21:23:57 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:24:35 V 20 27 25.73 +15 53 43.2 14.3 V 247
2021-07-29 21:24:35 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:24:57 V 20 27 24.79 +15 53 38.9 14.1 V 247
2021-07-29 21:24:57 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:25:56 V 20 27 24.93 +15 53 46.6 14.0 V 247
2021-07-29 21:25:56 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:26:56 V 20 27 25.00 +15 53 53.2 13.9 V 247
2021-07-29 21:26:56 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:27:55 V 20 27 25.16 +15 53 59.5 14.0 V 247
2021-07-29 21:27:55 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:28:55 V 20 27 25.31 +15 54 07.6 14.2 V 247
2021-07-29 21:28:55 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:29:55 V 20 27 25.43 +15 54 15.0 14.3 V 247
2021-07-29 21:29:55 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:30:54 V 20 27 25.55 +15 54 22.3 14.0 V 247
2021-07-29 21:30:54 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:31:54 V 20 27 25.63 +15 54 28.9 14.0 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)