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 01:48:58 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:49:37 V 20 08 53.38 -00 47 16.7 13.6 V 247
2021-07-25 01:49:37 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:50:17 V 20 08 53.53 -00 47 10.1 13.6 V 247
2021-07-25 01:50:17 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:50:57 V 20 08 53.64 -00 47 03.5 13.9 V 247
2021-07-25 01:50:57 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:51:36 V 20 08 53.78 -00 46 57.1 13.9 V 247
2021-07-25 01:51:36 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:52:16 V 20 08 53.84 -00 46 49.9 13.7 V 247
2021-07-25 01:52:16 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:52:56 V 20 08 53.94 -00 46 43.4 13.8 V 247
2021-07-25 01:52:56 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:53:36 V 20 08 54.06 -00 46 36.5 13.7 V 247
2021-07-25 01:53:36 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:54:15 V 20 08 54.19 -00 46 30.2 13.3 V 247
2021-07-25 01:54:15 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:54:55 V 20 08 54.26 -00 46 24.2 13.7 V 247
2021-07-25 01:54:55 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:55:35 V 20 08 54.34 -00 46 18.0 13.7 V 247
2021-07-25 01:55:35 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:56:14 V 20 08 54.45 -00 46 11.2 13.8 V 247
2021-07-25 01:56:14 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:56:54 V 20 08 54.58 -00 46 04.9 13.7 V 247
2021-07-25 01:56:54 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:57:34 V 20 08 54.66 -00 45 59.3 13.5 V 247
2021-07-25 01:57:34 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:58:14 V 20 08 54.79 -00 45 52.0 13.5 V 247
2021-07-25 01:58:14 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:58:53 V 20 08 54.90 -00 45 45.6 13.5 V 247
2021-07-25 01:58:53 v 1 273.41716 +30.43474 – – 247
2021-07-25 01:59:33 V 20 08 55.01 -00 45 37.5 13.4 V 247
2021-07-25 01:59:33 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:00:13 V 20 08 55.12 -00 45 32.2 13.4 V 247
2021-07-25 02:00:13 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:00:52 V 20 08 55.20 -00 45 25.1 13.5 V 247
2021-07-25 02:00:52 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:01:32 V 20 08 55.35 -00 45 19.1 13.7 V 247
2021-07-25 02:01:32 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:02:12 V 20 08 55.45 -00 45 12.3 13.8 V 247
2021-07-25 02:02:12 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:02:52 V 20 08 55.53 -00 45 05.7 13.6 V 247
2021-07-25 02:02:52 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:03:31 V 20 08 55.73 -00 44 59.5 13.5 V 247
2021-07-25 02:03:31 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:04:11 V 20 08 55.78 -00 44 51.1 13.6 V 247
2021-07-25 02:04:11 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:04:51 V 20 08 55.84 -00 44 46.5 13.6 V 247
2021-07-25 02:04:51 v 1 273.41716 +30.43474 – – 247
2021-07-25 02:05:30 V 20 08 55.95 -00 44 39.6 14.0 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)