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
2021-08-02 03:32:15 V 20 38 01.46 +24 12 13.8 14.8 V 247
2021-08-02 03:32:15 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:33:14 V 20 38 01.51 +24 12 19.0 14.8 V 247
2021-08-02 03:33:14 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:33:59 S 20 36 35.592 +23 25 27.16 – V C57
2021-08-02 03:33:59 s 1 -159409.03 9 +313310.78 8340.0 – C57
2021-08-02 03:34:14 V 20 38 01.55 +24 12 25.0 14.9 V 247
2021-08-02 03:34:14 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:37:13 V 20 38 01.96 +24 12 41.8 14.4 V 247
2021-08-02 03:37:13 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:38:12 V 20 38 02.05 +24 12 47.2 14.6 V 247
2021-08-02 03:38:12 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:39:12 V 20 38 02.15 +24 12 51.5 14.6 V 247
2021-08-02 03:39:12 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:40:11 V 20 38 02.17 +24 12 57.1 15.3 V 247
2021-08-02 03:40:11 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:43:59 S 20 36 37.320 +23 26 20.76 – V C57
2021-08-02 03:43:59 s 1 -159674.72 3 +312923.45 9170.0 – C57
2021-08-02 03:54:18 V 20 38 03.74 +24 14 16.0 15.2 V 247
2021-08-02 03:54:18 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:55:18 V 20 38 03.84 +24 14 22.0 14.8 V 247
2021-08-02 03:55:18 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:56:17 V 20 38 03.94 +24 14 27.4 14.6 V 247
2021-08-02 03:56:17 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:58:16 V 20 38 04.21 +24 14 38.3 14.7 V 247
2021-08-02 03:58:16 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:59:16 V 20 38 04.24 +24 14 43.5 15.2 V 247
2021-08-02 03:59:16 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:02:15 V 20 38 04.59 +24 15 00.0 14.8 V 247
2021-08-02 04:02:15 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:03:59 S 20 36 40.790 +23 28 09.16 – V C57
2021-08-02 04:03:59 s 1 -160204.56 0 +312145.79 5740.0 – C57
2021-08-02 04:04:14 V 20 38 04.77 +24 15 11.2 14.7 V 247
2021-08-02 04:04:14 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:05:13 V 20 38 04.92 +24 15 17.9 15.1 V 247
2021-08-02 04:05:13 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:06:13 V 20 38 04.98 +24 15 21.7 14.5 V 247
2021-08-02 04:06:13 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:07:12 V 20 38 05.06 +24 15 27.5 14.8 V 247
2021-08-02 04:07:12 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:09:12 V 20 38 05.27 +24 15 38.1 14.8 V 247
2021-08-02 04:09:12 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:10:11 V 20 38 05.25 +24 15 45.6 15.0 V 247
2021-08-02 04:10:11 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:13:59 S 20 36 42.497 +23 29 03.80 – V C57
2021-08-02 04:13:59 s 1 -160468.71 0 +311755.45 1470.0 – C57
2021-08-02 04:14:09 V 20 38 05.83 +24 16 06.8 14.8 V 247
2021-08-02 04:14:09 v 1 273.41730 +30.43483 – – 247
2021-08-02 04:23:59 S 20 36 44.215 +23 29 58.02 – V C57
2021-08-02 04:23:59 s 1 -160732.34 5 +311364.11 5490.0 – C57
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)