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 12:17:30 V 20 47 31.81 +30 35 19.6 14.8 V 247
2021-08-05 12:17:30 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:18:29 V 20 47 31.93 +30 35 23.6 14.6 V 247
2021-08-05 12:18:29 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:19:29 V 20 47 32.01 +30 35 27.9 14.6 V 247
2021-08-05 12:19:29 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:20:28 V 20 47 32.12 +30 35 32.2 14.6 V 247
2021-08-05 12:20:28 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:21:28 V 20 47 32.22 +30 35 36.6 15.0 V 247
2021-08-05 12:21:28 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:22:28 V 20 47 32.29 +30 35 39.8 15.1 V 247
2021-08-05 12:22:28 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:23:27 V 20 47 32.36 +30 35 43.8 15.1 V 247
2021-08-05 12:23:27 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:23:59 S 20 49 34.716 +30 13 59.99 – V C57
2021-08-05 12:23:59 s 1 -162607.11 0 - 1601.344 3430.0 – C57
2021-08-05 12:24:27 V 20 47 32.46 +30 35 48.2 15.2 V 247
2021-08-05 12:24:27 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:25:26 V 20 47 32.56 +30 35 52.2 15.9 V 247
2021-08-05 12:25:26 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:27:25 V 20 47 32.76 +30 36 00.7 15.9 V 247
2021-08-05 12:27:25 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:28:25 V 20 47 32.84 +30 36 05.0 15.5 V 247
2021-08-05 12:28:25 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:29:25 V 20 47 32.91 +30 36 08.9 15.3 V 247
2021-08-05 12:29:25 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:30:24 V 20 47 33.01 +30 36 12.9 15.2 V 247
2021-08-05 12:30:24 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:31:24 V 20 47 33.09 +30 36 17.1 15.1 V 247
2021-08-05 12:31:24 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:32:23 V 20 47 33.18 +30 36 20.7 15.4 V 247
2021-08-05 12:32:23 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:33:23 V 20 47 33.29 +30 36 25.1 15.2 V 247
2021-08-05 12:33:23 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:34:22 V 20 47 33.39 +30 36 29.4 15.0 V 247
2021-08-05 12:34:22 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:35:22 V 20 47 33.45 +30 36 33.4 15.1 V 247
2021-08-05 12:35:22 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:36:22 V 20 47 33.55 +30 36 37.4 15.0 V 247
2021-08-05 12:36:22 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:37:21 V 20 47 33.63 +30 36 41.5 15.0 V 247
2021-08-05 12:37:21 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:38:21 V 20 47 33.73 +30 36 45.9 14.9 V 247
2021-08-05 12:38:21 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:39:20 V 20 47 33.83 +30 36 49.7 14.8 V 247
2021-08-05 12:39:20 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:40:20 V 20 47 33.89 +30 36 54.0 15.7 V 247
2021-08-05 12:40:20 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:41:19 V 20 47 33.98 +30 36 57.9 15.8 V 247
2021-08-05 12:41:19 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)