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 22:35:53 V 20 40 20.37 +25 53 13.7 15.0 V 247
2021-08-02 22:35:53 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:36:52 V 20 40 20.51 +25 53 17.5 15.1 V 247
2021-08-02 22:36:52 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:37:52 V 20 40 20.55 +25 53 23.5 14.6 V 247
2021-08-02 22:37:52 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:38:51 V 20 40 20.69 +25 53 29.4 14.6 V 247
2021-08-02 22:38:51 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:40:50 V 20 40 20.85 +25 53 39.1 14.8 V 247
2021-08-02 22:40:50 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:41:50 V 20 40 20.93 +25 53 44.4 15.0 V 247
2021-08-02 22:41:50 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:42:49 V 20 40 21.07 +25 53 48.8 14.6 V 247
2021-08-02 22:42:49 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:43:49 V 20 40 21.17 +25 53 53.6 14.6 V 247
2021-08-02 22:43:49 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:43:59 S 20 39 52.908 +25 07 17.47 – V C57
2021-08-02 22:43:59 s 1 -186131.78 5 +262049.49 2410.0 – C57
2021-08-02 22:44:33 n 20 40 22.54 +25 53 49.1 – q Z92
2021-08-02 22:44:49 V 20 40 21.28 +25 53 59.5 14.5 V 247
2021-08-02 22:44:49 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:45:48 V 20 40 21.42 +25 54 03.7 14.5 V 247
2021-08-02 22:45:48 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:46:48 V 20 40 21.47 +25 54 09.0 14.4 V 247
2021-08-02 22:46:48 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:47:47 V 20 40 21.56 +25 54 14.9 15.0 V 247
2021-08-02 22:47:47 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:48:47 V 20 40 21.67 +25 54 19.1 15.1 V 247
2021-08-02 22:48:47 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:50:46 V 20 40 21.89 +25 54 29.5 15.7 V 247
2021-08-02 22:50:46 v 1 016.33576 +48.20435 – – 247
2021-08-02 22:53:59 S 20 39 54.643 +25 08 09.28 – V C57
2021-08-02 22:53:59 s 1 -186325.32 3 +261542.95 5880.0 – C57
2021-08-02 23:03:59 S 20 39 56.304 +25 09 02.09 – V C57
2021-08-02 23:03:59 s 1 -186518.09 5 +261035.33 6840.0 – C57
2021-08-02 23:09:10 V 20 40 23.73 +25 56 04.4 14.9 V 247
2021-08-02 23:09:10 v 1 016.33576 +48.20435 – – 247
2021-08-02 23:10:09 V 20 40 23.82 +25 56 09.3 14.7 V 247
2021-08-02 23:10:09 v 1 016.33576 +48.20435 – – 247
2021-08-02 23:12:08 V 20 40 24.05 +25 56 19.6 14.6 V 247
2021-08-02 23:12:08 v 1 016.33576 +48.20435 – – 247
2021-08-02 23:13:08 V 20 40 24.12 +25 56 24.0 15.0 V 247
2021-08-02 23:13:08 v 1 016.33576 +48.20435 – – 247
2021-08-02 23:13:59 S 20 39 58.066 +25 09 53.06 – V C57
2021-08-02 23:13:59 s 1 -186710.09 7 +260526.64 5290.0 – C57
2021-08-02 23:14:07 V 20 40 24.22 +25 56 28.9 15.2 V 247
2021-08-02 23:14:07 v 1 016.33576 +48.20435 – – 247
2021-08-02 23:18:06 V 20 40 24.67 +25 56 49.5 15.1 V 247
2021-08-02 23:18:06 v 1 016.33576 +48.20435 – – 247
2021-08-02 23:19:05 V 20 40 24.73 +25 56 54.4 15.2 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)