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
2021-07-25 04:25:46 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:26:25 V 20 09 17.40 -00 21 27.4 14.3 V 247
2021-07-25 04:26:25 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:27:05 V 20 09 17.49 -00 21 21.3 13.7 V 247
2021-07-25 04:27:05 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:27:45 V 20 09 17.60 -00 21 14.7 13.9 V 247
2021-07-25 04:27:45 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:28:24 V 20 09 17.72 -00 21 08.5 13.7 V 247
2021-07-25 04:28:24 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:29:04 V 20 09 17.76 -00 21 02.7 14.2 V 247
2021-07-25 04:29:04 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:30:24 V 20 09 17.95 -00 20 48.9 13.6 V 247
2021-07-25 04:30:24 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:31:03 V 20 09 18.03 -00 20 42.1 14.0 V 247
2021-07-25 04:31:03 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:31:43 V 20 09 18.16 -00 20 35.9 13.9 V 247
2021-07-25 04:31:43 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:32:23 V 20 09 18.22 -00 20 29.4 14.3 V 247
2021-07-25 04:32:23 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:33:42 V 20 09 18.50 -00 20 15.9 13.6 V 247
2021-07-25 04:33:42 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:34:22 V 20 09 18.58 -00 20 09.8 14.1 V 247
2021-07-25 04:34:22 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:35:01 V 20 09 18.68 -00 20 03.7 14.0 V 247
2021-07-25 04:35:01 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:35:41 V 20 09 18.74 -00 19 56.1 14.1 V 247
2021-07-25 04:35:41 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:36:21 V 20 09 18.83 -00 19 50.1 13.7 V 247
2021-07-25 04:36:21 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:37:01 V 20 09 18.95 -00 19 44.0 13.8 V 247
2021-07-25 04:37:01 v 1 273.41716 +30.43474 – – 247
2021-07-25 04:37:40 V 20 09 19.06 -00 19 36.6 14.0 V 247
2021-07-25 04:37:40 v 1 273.41716 +30.43474 – – 247
2021-07-25 05:17:03 V 20 09 27.69 -00 13 36.7 13.5 V 247
2021-07-25 05:17:03 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:17:55 V 20 09 27.84 -00 13 27.0 13.4 V 247
2021-07-25 05:17:55 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:18:46 V 20 09 27.99 -00 13 19.8 13.7 V 247
2021-07-25 05:18:46 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:19:22 V 20 09 28.71 -00 12 58.9 13.4 V 247
2021-07-25 05:19:22 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:19:38 V 20 09 28.09 -00 13 12.2 13.4 V 247
2021-07-25 05:19:38 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:20:14 V 20 09 28.84 -00 12 50.1 13.3 V 247
2021-07-25 05:20:14 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:20:30 V 20 09 28.23 -00 13 03.7 13.5 V 247
2021-07-25 05:20:30 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:21:06 V 20 09 29.00 -00 12 41.2 13.4 V 247
2021-07-25 05:21:06 v 1 238.27262 +37.68709 – – 247
2021-07-25 05:21:21 V 20 09 28.38 -00 12 54.4 13.4 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)