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
2021-07-26 02:21:45 V 20 13 08.41 +03 10 12.6 13.8 V 247
2021-07-26 02:21:45 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:22:45 V 20 13 08.60 +03 10 22.5 14.1 V 247
2021-07-26 02:22:45 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:24:44 V 20 13 08.84 +03 10 40.5 13.6 V 247
2021-07-26 02:24:44 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:25:44 V 20 13 09.03 +03 10 49.2 13.7 V 247
2021-07-26 02:25:44 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:26:43 V 20 13 09.20 +03 10 59.8 13.7 V 247
2021-07-26 02:26:43 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:27:43 V 20 13 09.33 +03 11 08.9 13.7 V 247
2021-07-26 02:27:43 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:29:42 V 20 13 09.64 +03 11 28.2 13.8 V 247
2021-07-26 02:29:42 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:30:42 V 20 13 09.77 +03 11 36.0 13.8 V 247
2021-07-26 02:30:42 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:31:41 V 20 13 09.94 +03 11 46.1 13.7 V 247
2021-07-26 02:31:41 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:32:41 V 20 13 10.09 +03 11 54.9 13.7 V 247
2021-07-26 02:32:41 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:33:40 V 20 13 10.21 +03 12 04.4 13.7 V 247
2021-07-26 02:33:40 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:34:40 V 20 13 10.38 +03 12 14.9 13.8 V 247
2021-07-26 02:34:40 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:35:39 V 20 13 10.55 +03 12 25.4 13.6 V 247
2021-07-26 02:35:39 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:36:39 V 20 13 10.69 +03 12 33.2 13.6 V 247
2021-07-26 02:36:39 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:37:38 V 20 13 10.81 +03 12 41.9 13.8 V 247
2021-07-26 02:37:38 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:38:38 V 20 13 10.98 +03 12 52.3 13.8 V 247
2021-07-26 02:38:38 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:39:38 V 20 13 11.18 +03 13 02.3 13.8 V 247
2021-07-26 02:39:38 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:40:37 V 20 13 11.31 +03 13 11.8 13.8 V 247
2021-07-26 02:40:37 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:41:37 V 20 13 11.47 +03 13 22.8 13.6 V 247
2021-07-26 02:41:37 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:42:36 V 20 13 11.55 +03 13 29.6 13.8 V 247
2021-07-26 02:42:36 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:43:36 V 20 13 11.75 +03 13 40.7 13.7 V 247
2021-07-26 02:43:36 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:44:35 V 20 13 11.89 +03 13 49.3 13.7 V 247
2021-07-26 02:44:35 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:45:35 V 20 13 12.01 +03 13 58.8 13.7 V 247
2021-07-26 02:45:35 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:46:35 V 20 13 12.18 +03 14 08.0 13.5 V 247
2021-07-26 02:46:35 v 1 273.41725 +30.43496 – – 247
2021-07-26 02:47:34 V 20 13 12.33 +03 14 17.3 13.7 V 247
2021-07-26 02:47:34 v 1 273.41725 +30.43496 – – 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)