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
2021-08-05 12:51:57 V 20 47 34.96 +30 37 42.2 16.0 V 247
2021-08-05 12:51:57 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:52:57 V 20 47 35.03 +30 37 46.2 15.7 V 247
2021-08-05 12:52:57 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:53:56 V 20 47 35.12 +30 37 50.3 15.2 V 247
2021-08-05 12:53:56 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:53:59 S 20 49 38.398 +30 16 26.98 – V C57
2021-08-05 12:53:59 s 1 -160974.94 9 - 4252.208 180.0 – C57
2021-08-05 12:54:56 V 20 47 35.22 +30 37 54.2 15.3 V 247
2021-08-05 12:54:56 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:03:59 S 20 49 39.662 +30 17 15.97 – V C57
2021-08-05 13:03:59 s 1 -160419.96 1 - 5136.025 8390.0 – C57
2021-08-05 13:06:51 V 20 47 36.27 +30 38 43.2 15.9 V 247
2021-08-05 13:06:51 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:07:50 V 20 47 36.36 +30 38 47.1 15.5 V 247
2021-08-05 13:07:50 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:08:50 V 20 47 36.42 +30 38 51.3 15.4 V 247
2021-08-05 13:08:50 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:09:49 V 20 47 36.52 +30 38 55.3 15.3 V 247
2021-08-05 13:09:49 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:10:49 V 20 47 36.60 +30 38 59.3 15.0 V 247
2021-08-05 13:10:49 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:11:48 V 20 47 36.70 +30 39 03.3 14.9 V 247
2021-08-05 13:11:48 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:12:48 V 20 47 36.84 +30 39 08.0 14.8 V 247
2021-08-05 13:12:48 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:13:47 V 20 47 36.90 +30 39 11.1 14.9 V 247
2021-08-05 13:13:47 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:13:59 S 20 49 41.244 +30 18 09.43 – V C57
2021-08-05 13:13:59 s 1 -159861.60 1 - 6019.237 8320.0 – C57
2021-08-05 13:14:47 V 20 47 36.97 +30 39 15.4 14.8 V 247
2021-08-05 13:14:47 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:15:47 V 20 47 37.04 +30 39 19.5 14.6 V 247
2021-08-05 13:15:47 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:16:46 V 20 47 37.12 +30 39 23.2 14.8 V 247
2021-08-05 13:16:46 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:17:46 V 20 47 37.21 +30 39 27.4 14.8 V 247
2021-08-05 13:17:46 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:18:45 V 20 47 37.32 +30 39 31.2 15.4 V 247
2021-08-05 13:18:45 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:19:45 V 20 47 37.39 +30 39 35.6 15.8 V 247
2021-08-05 13:19:45 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:20:44 V 20 47 37.47 +30 39 40.0 15.8 V 247
2021-08-05 13:20:44 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:21:44 V 20 47 37.57 +30 39 43.7 15.4 V 247
2021-08-05 13:21:44 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:22:44 V 20 47 37.63 +30 39 47.5 15.2 V 247
2021-08-05 13:22:44 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:23:43 V 20 47 37.76 +30 39 51.8 14.7 V 247
2021-08-05 13:23:43 v 1 134.17920 +34.51211 – – 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)