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 22:13:27 V 20 27 30.80 +15 59 32.8 14.3 V 247
2021-07-29 22:13:27 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:13:58 V 20 27 31.83 +15 59 44.6 14.2 V 247
2021-07-29 22:13:58 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:14:26 V 20 27 30.92 +15 59 39.3 14.3 V 247
2021-07-29 22:14:26 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:14:58 V 20 27 31.97 +15 59 51.9 14.1 V 247
2021-07-29 22:14:58 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:15:26 V 20 27 31.02 +15 59 47.3 14.3 V 247
2021-07-29 22:15:26 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:15:57 V 20 27 32.08 +15 59 58.8 14.4 V 247
2021-07-29 22:15:57 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:16:25 V 20 27 31.16 +15 59 54.4 14.3 V 247
2021-07-29 22:16:25 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:16:57 V 20 27 32.22 +16 00 06.2 14.7 V 247
2021-07-29 22:16:57 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:17:25 V 20 27 31.27 +16 00 01.4 14.2 V 247
2021-07-29 22:17:25 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:17:57 V 20 27 32.32 +16 00 13.7 14.5 V 247
2021-07-29 22:17:57 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:18:24 V 20 27 31.39 +16 00 08.6 14.4 V 247
2021-07-29 22:18:24 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:18:56 V 20 27 32.43 +16 00 20.7 14.4 V 247
2021-07-29 22:18:56 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:19:24 V 20 27 31.52 +16 00 16.0 14.4 V 247
2021-07-29 22:19:24 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:19:56 V 20 27 32.55 +16 00 27.8 14.5 V 247
2021-07-29 22:19:56 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:20:23 V 20 27 31.63 +16 00 23.2 14.4 V 247
2021-07-29 22:20:23 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:20:55 V 20 27 32.66 +16 00 35.5 14.6 V 247
2021-07-29 22:20:55 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:21:23 V 20 27 31.74 +16 00 30.6 14.4 V 247
2021-07-29 22:21:23 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:21:55 V 20 27 32.78 +16 00 42.7 14.8 V 247
2021-07-29 22:21:55 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:22:23 V 20 27 31.89 +16 00 37.6 14.8 V 247
2021-07-29 22:22:23 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:22:54 V 20 27 32.88 +16 00 49.6 15.2 V 247
2021-07-29 22:22:54 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:23:22 V 20 27 32.00 +16 00 45.1 14.6 V 247
2021-07-29 22:23:22 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:23:54 V 20 27 33.00 +16 00 57.0 14.9 V 247
2021-07-29 22:23:54 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:24:22 V 20 27 32.11 +16 00 52.7 14.5 V 247
2021-07-29 22:24:22 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:25:21 V 20 27 32.25 +16 00 59.3 14.0 V 247
2021-07-29 22:25:21 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:26:21 V 20 27 32.39 +16 01 06.6 13.9 V 247
2021-07-29 22:26:21 v 1 016.41060 +47.95355 – – 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)