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
2021-08-01 12:24:32 V 20 36 05.05 +22 46 16.4 14.6 V 247
2021-08-01 12:24:32 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:25:31 V 20 36 05.17 +22 46 22.3 14.6 V 247
2021-08-01 12:25:31 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:26:31 V 20 36 05.26 +22 46 28.8 14.7 V 247
2021-08-01 12:26:31 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:27:30 V 20 36 05.37 +22 46 33.6 14.8 V 247
2021-08-01 12:27:30 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:28:21 V 20 36 04.54 +22 48 20.7 14.0 V 247
2021-08-01 12:28:21 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:28:30 V 20 36 05.48 +22 46 39.6 14.7 V 247
2021-08-01 12:28:30 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:29:21 V 20 36 04.72 +22 48 26.2 14.3 V 247
2021-08-01 12:29:21 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:29:29 V 20 36 05.56 +22 46 45.8 14.5 V 247
2021-08-01 12:29:29 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:30:20 V 20 36 04.84 +22 48 32.5 14.7 V 247
2021-08-01 12:30:20 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:30:29 V 20 36 05.68 +22 46 51.6 14.5 V 247
2021-08-01 12:30:29 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:31:20 V 20 36 04.94 +22 48 39.0 14.9 V 247
2021-08-01 12:31:20 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:31:29 V 20 36 05.78 +22 46 57.4 14.7 V 247
2021-08-01 12:31:29 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:32:20 V 20 36 05.03 +22 48 44.4 14.7 V 247
2021-08-01 12:32:20 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:32:28 V 20 36 05.89 +22 47 02.9 14.7 V 247
2021-08-01 12:32:28 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:33:19 V 20 36 05.18 +22 48 50.2 14.6 V 247
2021-08-01 12:33:19 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:33:28 V 20 36 05.99 +22 47 08.6 14.8 V 247
2021-08-01 12:33:28 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:33:59 S 20 33 59.237 +22 02 11.47 – V C57
2021-08-01 12:33:59 s 1 -133618.96 6 +344122.60 6390.0 – C57
2021-08-01 12:34:19 V 20 36 05.28 +22 48 55.7 14.3 V 247
2021-08-01 12:34:19 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:34:27 V 20 36 06.09 +22 47 14.4 14.7 V 247
2021-08-01 12:34:27 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:35:18 V 20 36 05.36 +22 49 02.0 14.2 V 247
2021-08-01 12:35:18 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:35:27 V 20 36 06.22 +22 47 20.9 14.5 V 247
2021-08-01 12:35:27 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:36:18 V 20 36 05.45 +22 49 07.6 14.6 V 247
2021-08-01 12:36:18 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:36:26 V 20 36 06.32 +22 47 26.9 14.5 V 247
2021-08-01 12:36:26 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:37:17 V 20 36 05.56 +22 49 13.7 14.7 V 247
2021-08-01 12:37:17 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:37:26 V 20 36 06.42 +22 47 32.2 14.5 V 247
2021-08-01 12:37:26 v 1 140.20199 +36.17829 – – 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)