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 05:44:47 V 20 35 12.78 +22 07 02.0 14.7 V 247
2021-08-01 05:44:47 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:45:47 V 20 35 12.90 +22 07 08.0 14.4 V 247
2021-08-01 05:45:47 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:46:46 V 20 35 12.99 +22 07 13.9 14.3 V 247
2021-08-01 05:46:46 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:47:46 V 20 35 13.10 +22 07 20.4 14.1 V 247
2021-08-01 05:47:46 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:48:45 V 20 35 13.23 +22 07 25.2 14.4 V 247
2021-08-01 05:48:45 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:49:45 V 20 35 13.29 +22 07 32.0 14.3 V 247
2021-08-01 05:49:45 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:50:44 V 20 35 13.41 +22 07 38.7 14.5 V 247
2021-08-01 05:50:44 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:51:44 V 20 35 13.51 +22 07 44.2 14.2 V 247
2021-08-01 05:51:44 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:52:44 V 20 35 13.63 +22 07 50.1 14.5 V 247
2021-08-01 05:52:44 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:53:43 V 20 35 13.72 +22 07 56.1 14.5 V 247
2021-08-01 05:53:43 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:54:43 V 20 35 13.84 +22 08 02.2 14.4 V 247
2021-08-01 05:54:43 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:55:42 V 20 35 13.92 +22 08 08.5 14.4 V 247
2021-08-01 05:55:42 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:56:42 V 20 35 14.01 +22 08 14.1 14.4 V 247
2021-08-01 05:56:42 v 1 242.98596 +33.20762 – – 247
2021-08-01 05:57:41 V 20 35 14.13 +22 08 20.3 14.5 V 247
2021-08-01 05:57:41 v 1 242.98596 +33.20762 – – 247
2021-08-01 06:03:59 S 20 32 50.990 +21 25 01.42 – V C57
2021-08-01 06:03:59 s 1 -121452.46 2 +355033.95 6860.0 – C57
2021-08-01 06:13:59 S 20 32 52.757 +21 25 58.48 – V C57
2021-08-01 06:13:59 s 1 -121770.80 4 +354772.31 5400.0 – C57
2021-08-01 06:23:59 S 20 32 54.499 +21 26 56.76 – V C57
2021-08-01 06:23:59 s 1 -122088.82 5 +354509.72 2830.0 – C57
2021-08-01 06:33:59 S 20 32 56.237 +21 27 54.47 – V C57
2021-08-01 06:33:59 s 1 -122406.52 4 +354246.18 9150.0 – C57
2021-08-01 06:43:59 S 20 32 57.991 +21 28 52.10 – V C57
2021-08-01 06:43:59 s 1 -122723.90 1 +353981.68 4370.0 – C57
2021-08-01 06:53:59 S 20 32 59.762 +21 29 50.17 – V C57
2021-08-01 06:53:59 s 1 -123040.95 3 +353716.24 8460.0 – C57
2021-08-01 07:03:56 V 20 35 25.41 +22 15 05.3 15.0 V 247
2021-08-01 07:03:56 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:03:59 S 20 33 01.529 +21 30 47.52 – V C57
2021-08-01 07:03:59 s 1 -123357.68 1 +353449.84 1440.0 – C57
2021-08-01 07:04:55 V 20 35 25.49 +22 15 10.7 14.8 V 247
2021-08-01 07:04:55 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:05:55 V 20 35 25.63 +22 15 17.7 14.5 V 247
2021-08-01 07:05:55 v 1 201.91287 +21.37114 – – 247
2021-08-01 07:06:54 V 20 35 25.70 +22 15 23.0 14.5 V 247
2021-08-01 07:06:54 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)