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 21:31:54 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:32:53 V 20 27 25.78 +15 54 36.4 14.0 V 247
2021-07-29 21:32:53 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:33:53 V 20 27 25.91 +15 54 43.7 14.1 V 247
2021-07-29 21:33:53 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:34:52 V 20 27 26.05 +15 54 50.9 14.2 V 247
2021-07-29 21:34:52 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:35:52 V 20 27 26.16 +15 54 58.5 14.2 V 247
2021-07-29 21:35:52 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:36:52 V 20 27 26.27 +15 55 05.9 14.0 V 247
2021-07-29 21:36:52 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:37:51 V 20 27 26.40 +15 55 12.5 14.1 V 247
2021-07-29 21:37:51 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:38:51 V 20 27 26.52 +15 55 19.6 14.3 V 247
2021-07-29 21:38:51 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:39:50 V 20 27 26.62 +15 55 27.1 14.3 V 247
2021-07-29 21:39:50 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:39:54 C 20 27 25.87 +15 55 34.7 – V 073
2021-07-29 21:40:50 V 20 27 26.78 +15 55 34.7 14.4 V 247
2021-07-29 21:40:50 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:41:49 V 20 27 26.89 +15 55 41.9 14.3 V 247
2021-07-29 21:41:49 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:42:49 V 20 27 26.99 +15 55 49.2 14.2 V 247
2021-07-29 21:42:49 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:44:48 V 20 27 27.26 +15 56 03.7 14.4 V 247
2021-07-29 21:44:48 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:45:48 V 20 27 27.38 +15 56 11.4 14.3 V 247
2021-07-29 21:45:48 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:46:47 V 20 27 27.50 +15 56 17.5 14.3 V 247
2021-07-29 21:46:47 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:48:46 V 20 27 27.75 +15 56 32.5 14.2 V 247
2021-07-29 21:48:46 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:49:09 V 20 27 28.83 +15 56 43.3 14.2 V 247
2021-07-29 21:49:09 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:49:46 V 20 27 27.87 +15 56 40.1 14.3 V 247
2021-07-29 21:49:46 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:49:47 C 20 27 27.65 +15 56 38.1 – X G02
2021-07-29 21:50:09 V 20 27 28.94 +15 56 50.4 14.3 V 247
2021-07-29 21:50:09 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:51:08 V 20 27 29.07 +15 56 57.6 14.3 V 247
2021-07-29 21:51:08 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:51:45 V 20 27 28.12 +15 56 54.2 14.2 V 247
2021-07-29 21:51:45 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:52:08 V 20 27 29.18 +15 57 04.8 14.3 V 247
2021-07-29 21:52:08 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:52:45 V 20 27 28.24 +15 57 01.6 14.4 V 247
2021-07-29 21:52:45 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:53:07 V 20 27 29.30 +15 57 12.5 14.4 V 247
2021-07-29 21:53:07 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:53:44 V 20 27 28.37 +15 57 09.0 14.4 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)