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 06:34:49 V 20 09 39.82 -00 00 53.8 13.5 V 247
2021-07-25 06:34:49 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:35:36 V 20 09 39.96 -00 00 46.8 13.6 V 247
2021-07-25 06:35:36 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:36:24 V 20 09 40.06 -00 00 38.2 13.6 V 247
2021-07-25 06:36:24 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:37:12 V 20 09 40.20 -00 00 30.9 13.4 V 247
2021-07-25 06:37:12 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:37:59 V 20 09 40.32 -00 00 23.0 13.5 V 247
2021-07-25 06:37:59 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:38:47 V 20 09 40.45 -00 00 15.4 13.4 V 247
2021-07-25 06:38:47 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:39:34 V 20 09 40.55 -00 00 07.8 13.4 V 247
2021-07-25 06:39:34 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:40:22 V 20 09 40.68 -00 00 00.0 13.4 V 247
2021-07-25 06:40:22 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:41:10 V 20 09 40.80 -00 00 08.0 13.4 V 247
2021-07-25 06:41:10 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:41:57 V 20 09 40.93 -00 00 16.2 13.4 V 247
2021-07-25 06:41:57 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:42:45 V 20 09 41.04 -00 00 23.7 13.5 V 247
2021-07-25 06:42:45 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:43:33 V 20 09 41.17 -00 00 30.9 13.8 V 247
2021-07-25 06:43:33 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:44:20 V 20 09 41.28 -00 00 39.4 13.7 V 247
2021-07-25 06:44:20 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:45:08 V 20 09 41.43 -00 00 46.8 13.5 V 247
2021-07-25 06:45:08 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:45:56 V 20 09 41.55 -00 00 54.6 13.5 V 247
2021-07-25 06:45:56 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:46:43 V 20 09 41.64 -00 01 02.5 13.5 V 247
2021-07-25 06:46:43 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:47:31 V 20 09 41.78 -00 01 10.2 13.4 V 247
2021-07-25 06:47:31 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:48:19 V 20 09 41.89 -00 01 19.1 13.3 V 247
2021-07-25 06:48:19 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:50:42 V 20 09 42.27 -00 01 41.4 13.4 V 247
2021-07-25 06:50:42 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:51:29 V 20 09 42.37 -00 01 51.0 13.9 V 247
2021-07-25 06:51:29 v 1 236.86643 +49.13905 – – 247
2021-07-25 20:01:41 C 20 12 01.15 +02 09 37.7 – V 073
2021-07-25 20:30:09 C 20 12 05.40 +02 14 10.3 – V 073
2021-07-25 20:58:38 C 20 12 09.61 +02 18 42.5 – V 073
2021-07-25 21:31:08 C 20 12 14.37 +02 23 52.8 – V 073
2021-07-25 22:06:11 C 20 12 19.48 +02 29 27.1 – V 073
2021-07-25 22:41:13 C 20 12 24.57 +02 35 00.6 – V 073
2021-07-25 23:07:12 C 20 12 27.88 +02 39 03.5 – V 089
2021-07-25 23:10:31 C 20 12 28.37 +02 39 34.7 – V 089
2021-07-25 23:13:49 C 20 12 28.85 +02 40 06.3 – V 089
2021-07-25 23:17:07 C 20 12 29.33 +02 40 38.0 – V 089
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)