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
2021-08-07 17:35:56 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:38:55 V 20 53 00.26 +33 50 15.3 14.3 V 247
2021-08-07 17:38:55 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:39:54 V 20 53 00.34 +33 50 18.3 14.3 V 247
2021-08-07 17:39:54 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:40:54 V 20 53 00.43 +33 50 21.6 14.6 V 247
2021-08-07 17:40:54 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:41:53 V 20 53 00.53 +33 50 24.7 15.3 V 247
2021-08-07 17:41:53 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:42:53 V 20 53 00.59 +33 50 27.8 15.5 V 247
2021-08-07 17:42:53 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:43:53 V 20 53 00.68 +33 50 30.7 15.8 V 247
2021-08-07 17:43:53 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:46:51 V 20 53 00.93 +33 50 40.2 16.0 V 247
2021-08-07 17:46:51 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:47:51 V 20 53 01.04 +33 50 43.7 15.3 V 247
2021-08-07 17:47:51 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:48:50 V 20 53 01.11 +33 50 46.8 15.0 V 247
2021-08-07 17:48:50 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:49:50 V 20 53 01.19 +33 50 49.6 15.1 V 247
2021-08-07 17:49:50 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:50:50 V 20 53 01.28 +33 50 53.0 14.9 V 247
2021-08-07 17:50:50 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:51:49 V 20 53 01.34 +33 50 56.1 14.9 V 247
2021-08-07 17:51:49 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:52:51 V 20 53 01.46 +33 50 59.5 14.9 V 247
2021-08-07 17:52:51 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:53:52 V 20 53 01.54 +33 51 02.5 14.7 V 247
2021-08-07 17:53:52 v 1 134.17923 +34.51212 – – 247
2021-08-07 17:55:51 V 20 53 01.74 +33 51 09.3 15.1 V 247
2021-08-07 17:55:51 v 1 134.17923 +34.51212 – – 247
2021-08-07 18:04:47 V 20 53 02.48 +33 51 37.4 15.1 V 247
2021-08-07 18:04:47 v 1 134.17923 +34.51212 – – 247
2021-08-07 18:05:47 V 20 53 02.60 +33 51 41.7 14.6 V 247
2021-08-07 18:05:47 v 1 134.17923 +34.51212 – – 247
2021-08-07 18:06:47 V 20 53 02.62 +33 51 43.9 15.0 V 247
2021-08-07 18:06:47 v 1 134.17923 +34.51212 – – 247
2021-08-07 19:37:01 C 20 53 18.99 +33 56 31.8 – V K73
2021-08-07 19:39:46 C 20 53 19.26 +33 56 40.9 – V K73
2021-08-07 19:43:41 C 20 53 19.56 +33 56 54.6 – V K73
2021-08-07 19:46:25 C 20 53 19.80 +33 57 03.6 – V K73
2021-08-07 19:49:22 C 20 53 20.06 +33 57 13.6 – V K73
2021-08-07 20:14:13 C 20 53 21.59 +33 58 26.5 – X G02
2021-08-07 20:19:20 C 20 53 22.03 +33 58 43.3 – X G02
2021-08-07 20:25:47 C 20 53 22.58 +33 59 05.1 – X G02
2021-08-07 21:22:49 C 20 53 26.43 +34 02 18.1 – V 089
2021-08-07 21:26:08 C 20 53 26.69 +34 02 28.7 – V 089
2021-08-07 21:29:27 C 20 53 26.97 +34 02 39.6 – V 089
2021-08-07 21:32:46 C 20 53 27.23 +34 02 50.3 – V 089
2021-08-07 21:36:05 C 20 53 27.51 +34 03 00.9 – 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)