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 20:46:57 V 20 40 09.23 +25 43 48.7 15.0 V 247
2021-08-02 20:46:57 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:47:56 V 20 40 09.34 +25 43 54.6 15.1 V 247
2021-08-02 20:47:56 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:48:56 V 20 40 09.46 +25 43 59.9 14.9 V 247
2021-08-02 20:48:56 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:50:55 V 20 40 09.64 +25 44 09.0 14.6 V 247
2021-08-02 20:50:55 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:52:54 V 20 40 09.84 +25 44 20.8 14.5 V 247
2021-08-02 20:52:54 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:53:54 V 20 40 09.97 +25 44 25.6 15.0 V 247
2021-08-02 20:53:54 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:53:59 S 20 39 34.260 +24 57 45.07 – V C57
2021-08-02 20:53:59 s 1 -183953.02 5 +267550.76 1560.0 – C57
2021-08-02 20:55:53 V 20 40 10.16 +25 44 36.5 14.9 V 247
2021-08-02 20:55:53 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:56:45 C 20 40 09.40 +25 44 47.9 – q C73
2021-08-02 20:56:53 V 20 40 10.22 +25 44 41.0 14.9 V 247
2021-08-02 20:56:53 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:57:52 V 20 40 10.32 +25 44 46.3 14.8 V 247
2021-08-02 20:57:52 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:58:52 V 20 40 10.51 +25 44 50.8 15.2 V 247
2021-08-02 20:58:52 v 1 016.33576 +48.20435 – – 247
2021-08-02 20:59:51 V 20 40 10.52 +25 44 55.7 14.8 V 247
2021-08-02 20:59:51 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:00:51 V 20 40 10.70 +25 45 02.4 15.0 V 247
2021-08-02 21:00:51 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:01:50 V 20 40 10.78 +25 45 05.9 14.8 V 247
2021-08-02 21:01:50 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:02:50 V 20 40 10.92 +25 45 10.9 14.5 V 247
2021-08-02 21:02:50 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:03:49 V 20 40 10.97 +25 45 16.2 14.6 V 247
2021-08-02 21:03:49 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:03:59 S 20 39 35.940 +24 58 36.70 – V C57
2021-08-02 21:03:59 s 1 -184154.81 9 +267055.99 1990.0 – C57
2021-08-02 21:04:49 V 20 40 11.08 +25 45 21.5 14.9 V 247
2021-08-02 21:04:49 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:05:49 V 20 40 11.18 +25 45 26.6 14.8 V 247
2021-08-02 21:05:49 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:06:48 V 20 40 11.36 +25 45 32.0 14.9 V 247
2021-08-02 21:06:48 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:07:48 V 20 40 11.42 +25 45 37.5 14.7 V 247
2021-08-02 21:07:48 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:08:47 V 20 40 11.53 +25 45 42.4 14.7 V 247
2021-08-02 21:08:47 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:09:47 V 20 40 11.62 +25 45 47.4 14.8 V 247
2021-08-02 21:09:47 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:10:46 V 20 40 11.72 +25 45 52.5 14.6 V 247
2021-08-02 21:10:46 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:11:46 V 20 40 11.79 +25 45 57.3 14.7 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)