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 02:49:26 V 20 37 56.95 +24 08 14.6 14.9 V 247
2021-08-02 02:49:26 v 1 273.41730 +30.43483 – – 247
2021-08-02 02:50:26 V 20 37 57.06 +24 08 19.1 14.7 V 247
2021-08-02 02:50:26 v 1 273.41730 +30.43483 – – 247
2021-08-02 02:51:25 V 20 37 57.13 +24 08 24.5 14.7 V 247
2021-08-02 02:51:25 v 1 273.41730 +30.43483 – – 247
2021-08-02 02:52:25 V 20 37 57.22 +24 08 29.7 15.2 V 247
2021-08-02 02:52:25 v 1 273.41730 +30.43483 – – 247
2021-08-02 02:53:24 V 20 37 57.32 +24 08 33.6 15.0 V 247
2021-08-02 02:53:24 v 1 273.41730 +30.43483 – – 247
2021-08-02 02:53:59 S 20 36 28.668 +23 21 48.64 – V C57
2021-08-02 02:53:59 s 1 -158341.24 3 +314850.07 8190.0 – C57
2021-08-02 02:56:23 V 20 37 57.62 +24 08 52.2 14.7 V 247
2021-08-02 02:56:23 v 1 273.41730 +30.43483 – – 247
2021-08-02 02:57:23 V 20 37 57.72 +24 08 57.8 14.9 V 247
2021-08-02 02:57:23 v 1 273.41730 +30.43483 – – 247
2021-08-02 02:58:22 V 20 37 57.85 +24 09 02.1 14.6 V 247
2021-08-02 02:58:22 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:01:28 V 20 37 58.24 +24 09 21.0 14.7 V 247
2021-08-02 03:01:28 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:02:28 V 20 37 58.31 +24 09 26.8 14.5 V 247
2021-08-02 03:02:28 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:03:27 V 20 37 58.41 +24 09 32.0 14.7 V 247
2021-08-02 03:03:27 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:03:59 S 20 36 30.509 +23 22 43.75 – V C57
2021-08-02 03:03:59 s 1 -158608.94 8 +314466.75 5740.0 – C57
2021-08-02 03:04:27 V 20 37 58.51 +24 09 36.6 14.6 V 247
2021-08-02 03:04:27 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:05:27 V 20 37 58.68 +24 09 44.5 14.8 V 247
2021-08-02 03:05:27 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:08:25 V 20 37 58.96 +24 10 01.2 14.7 V 247
2021-08-02 03:08:25 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:13:23 V 20 37 59.35 +24 10 29.4 14.1 V 247
2021-08-02 03:13:23 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:16:22 V 20 37 59.78 +24 10 45.4 14.5 V 247
2021-08-02 03:16:22 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:17:21 V 20 37 59.85 +24 10 50.4 14.8 V 247
2021-08-02 03:17:21 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:18:21 V 20 38 00.03 +24 10 55.7 14.7 V 247
2021-08-02 03:18:21 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:19:20 V 20 38 00.12 +24 11 02.9 14.8 V 247
2021-08-02 03:19:20 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:20:20 V 20 38 00.16 +24 11 07.0 14.8 V 247
2021-08-02 03:20:20 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:23:59 S 20 36 33.876 +23 24 31.97 – V C57
2021-08-02 03:23:59 s 1 -159142.84 7 +313697.10 5820.0 – C57
2021-08-02 03:28:16 V 20 38 01.04 +24 11 52.5 14.9 V 247
2021-08-02 03:28:16 v 1 273.41730 +30.43483 – – 247
2021-08-02 03:29:16 V 20 38 01.11 +24 11 57.8 15.1 V 247
2021-08-02 03:29:16 v 1 273.41730 +30.43483 – – 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)