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
2021-08-01 11:54:11 V 20 36 01.03 +22 44 59.5 14.2 V 247
2021-08-01 11:54:11 v 1 151.94278 -27.45579 – – 247
2021-08-01 11:55:11 V 20 36 01.13 +22 45 05.3 14.9 V 247
2021-08-01 11:55:11 v 1 151.94278 -27.45579 – – 247
2021-08-01 11:56:14 V 20 35 55.74 +22 43 59.7 14.2 V 247
2021-08-01 11:56:14 v 1 201.91287 +21.37114 – – 247
2021-08-01 11:57:14 V 20 35 55.84 +22 44 04.9 14.8 V 247
2021-08-01 11:57:14 v 1 201.91287 +21.37114 – – 247
2021-08-01 11:58:09 V 20 36 01.46 +22 45 23.4 14.9 V 247
2021-08-01 11:58:09 v 1 151.94278 -27.45579 – – 247
2021-08-01 11:58:13 V 20 35 55.94 +22 44 10.9 15.3 V 247
2021-08-01 11:58:13 v 1 201.91287 +21.37114 – – 247
2021-08-01 11:59:09 V 20 36 01.55 +22 45 28.8 14.8 V 247
2021-08-01 11:59:09 v 1 151.94278 -27.45579 – – 247
2021-08-01 11:59:13 V 20 35 56.06 +22 44 17.2 14.7 V 247
2021-08-01 11:59:13 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:00:08 V 20 36 01.68 +22 45 35.2 14.6 V 247
2021-08-01 12:00:08 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:00:12 V 20 35 56.15 +22 44 22.3 14.6 V 247
2021-08-01 12:00:12 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:01:08 V 20 36 01.80 +22 45 40.7 14.4 V 247
2021-08-01 12:01:08 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:01:12 V 20 35 56.28 +22 44 28.6 14.5 V 247
2021-08-01 12:01:12 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:02:08 V 20 36 01.92 +22 45 46.8 14.5 V 247
2021-08-01 12:02:08 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:02:11 V 20 35 56.34 +22 44 34.2 14.6 V 247
2021-08-01 12:02:11 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:03:07 V 20 36 02.00 +22 45 52.8 14.5 V 247
2021-08-01 12:03:07 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:03:11 V 20 35 56.45 +22 44 39.0 14.7 V 247
2021-08-01 12:03:11 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:03:59 S 20 33 53.962 +21 59 21.01 – V C57
2021-08-01 12:03:59 s 1 -132702.01 6 +345013.69 1110.0 – C57
2021-08-01 12:04:07 V 20 36 02.09 +22 45 58.4 14.7 V 247
2021-08-01 12:04:07 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:04:15 V 20 35 56.55 +22 44 46.6 14.6 V 247
2021-08-01 12:04:15 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:04:40 V 20 36 02.88 +22 44 19.1 14.6 V 247
2021-08-01 12:04:40 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:05:06 V 20 36 02.18 +22 46 04.0 14.8 V 247
2021-08-01 12:05:06 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:05:18 V 20 35 56.67 +22 44 51.2 14.9 V 247
2021-08-01 12:05:18 v 1 201.91287 +21.37114 – – 247
2021-08-01 12:05:40 V 20 36 02.97 +22 44 25.1 14.8 V 247
2021-08-01 12:05:40 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:06:06 V 20 36 02.28 +22 46 10.0 14.8 V 247
2021-08-01 12:06:06 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:06:18 V 20 35 56.77 +22 44 57.1 14.5 V 247
2021-08-01 12:06:18 v 1 201.91287 +21.37114 – – 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)