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
2021-07-22 21:12:25 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:15:04 V 19 59 06.52 -09 48 06.7 13.2 V 247
2021-07-22 21:15:04 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:15:43 V 19 59 06.53 -09 47 59.9 13.4 V 247
2021-07-22 21:15:43 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:16:23 V 19 59 06.80 -09 47 52.8 13.5 V 247
2021-07-22 21:16:23 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:17:03 V 19 59 06.77 -09 47 46.2 13.3 V 247
2021-07-22 21:17:03 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:17:42 V 19 59 06.87 -09 47 38.8 13.0 V 247
2021-07-22 21:17:42 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:18:22 V 19 59 07.07 -09 47 32.1 13.2 V 247
2021-07-22 21:18:22 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:20:21 V 19 59 07.40 -09 47 10.5 13.2 V 247
2021-07-22 21:20:21 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:21:01 V 19 59 07.46 -09 47 03.7 13.5 V 247
2021-07-22 21:21:01 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:21:41 V 19 59 07.62 -09 46 56.7 13.4 V 247
2021-07-22 21:21:41 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:23:00 V 19 59 07.78 -09 46 43.2 13.3 V 247
2021-07-22 21:23:00 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:23:40 V 19 59 08.00 -09 46 36.8 13.2 V 247
2021-07-22 21:23:40 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:24:19 V 19 59 08.04 -09 46 29.5 13.3 V 247
2021-07-22 21:24:19 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:24:59 V 19 59 08.19 -09 46 22.0 13.3 V 247
2021-07-22 21:24:59 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:25:39 V 19 59 08.36 -09 46 14.7 13.2 V 247
2021-07-22 21:25:39 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:26:19 V 19 59 08.46 -09 46 07.7 13.4 V 247
2021-07-22 21:26:19 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:26:58 V 19 59 08.52 -09 46 00.8 13.4 V 247
2021-07-22 21:26:58 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:28:18 V 19 59 08.69 -09 45 47.8 13.1 V 247
2021-07-22 21:28:18 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:28:57 V 19 59 08.82 -09 45 40.5 13.3 V 247
2021-07-22 21:28:57 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:29:37 V 19 59 08.93 -09 45 34.0 13.3 V 247
2021-07-22 21:29:37 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:36:53 C 19 59 08.02 -09 44 12.9 – V 089
2021-07-22 21:40:11 C 19 59 08.58 -09 43 37.9 – V 089
2021-07-22 21:41:32 V 19 59 11.03 -09 43 27.6 13.1 V 247
2021-07-22 21:41:32 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:42:51 V 19 59 11.21 -09 43 14.5 13.6 V 247
2021-07-22 21:42:51 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:43:29 C 19 59 09.12 -09 43 03.5 – V 089
2021-07-22 21:46:47 C 19 59 09.66 -09 42 28.5 – V 089
2021-07-22 21:49:29 V 19 59 12.42 -09 42 03.9 13.3 V 247
2021-07-22 21:49:29 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:50:05 C 19 59 10.21 -09 41 53.8 – 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)