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 13:24:43 V 20 47 37.83 +30 39 56.1 14.4 V 247
2021-08-05 13:24:43 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:25:42 V 20 47 37.92 +30 39 59.6 14.3 V 247
2021-08-05 13:25:42 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:26:42 V 20 47 38.01 +30 40 03.8 14.4 V 247
2021-08-05 13:26:42 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:27:41 V 20 47 38.08 +30 40 08.3 14.8 V 247
2021-08-05 13:27:41 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:28:41 V 20 47 38.15 +30 40 11.9 15.2 V 247
2021-08-05 13:28:41 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:29:41 V 20 47 38.24 +30 40 16.3 15.5 V 247
2021-08-05 13:29:41 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:30:40 V 20 47 38.35 +30 40 20.1 16.0 V 247
2021-08-05 13:30:40 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:43:59 S 20 49 44.712 +30 20 33.47 – V C57
2021-08-05 13:43:59 s 1 -158156.96 8 - 8667.712 6140.0 – C57
2021-08-05 13:45:25 V 20 47 39.64 +30 41 21.0 15.8 V 247
2021-08-05 13:45:25 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:46:24 V 20 47 39.72 +30 41 24.8 15.8 V 247
2021-08-05 13:46:24 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:47:24 V 20 47 39.83 +30 41 29.0 15.1 V 247
2021-08-05 13:47:24 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:48:24 V 20 47 39.92 +30 41 33.3 15.2 V 247
2021-08-05 13:48:24 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:49:23 V 20 47 39.96 +30 41 36.9 15.4 V 247
2021-08-05 13:49:23 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:50:23 V 20 47 40.07 +30 41 41.2 15.8 V 247
2021-08-05 13:50:23 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:53:59 S 20 49 45.994 +30 21 26.14 – V C57
2021-08-05 13:53:59 s 1 -157578.88 2 - 9550.026 4260.0 – C57
2021-08-05 13:56:20 V 20 47 40.57 +30 42 04.8 15.0 V 247
2021-08-05 13:56:20 v 1 134.17920 +34.51211 – – 247
2021-08-05 13:59:19 V 20 47 40.84 +30 42 17.1 14.5 V 247
2021-08-05 13:59:19 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:03:59 S 20 49 47.206 +30 22 14.66 – V C57
2021-08-05 14:03:59 s 1 -156995.80 5 -10432.034 6650.0 – C57
2021-08-05 14:07:15 V 20 47 41.50 +30 42 48.4 15.4 V 247
2021-08-05 14:07:15 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:08:15 V 20 47 41.62 +30 42 52.7 15.5 V 247
2021-08-05 14:08:15 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:09:14 V 20 47 41.67 +30 42 56.0 15.6 V 247
2021-08-05 14:09:14 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:10:14 V 20 47 41.77 +30 43 00.2 15.9 V 247
2021-08-05 14:10:14 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:11:14 V 20 47 41.87 +30 43 04.3 15.8 V 247
2021-08-05 14:11:14 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:12:13 V 20 47 41.95 +30 43 08.5 15.9 V 247
2021-08-05 14:12:13 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:13:59 S 20 49 48.394 +30 23 04.38 – V C57
2021-08-05 14:13:59 s 1 -156407.70 5 -11313.705 3210.0 – C57
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)