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
2021-08-02 15:33:16 V 20 39 27.33 +25 16 58.3 14.8 V 247
2021-08-02 15:33:16 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:33:59 S 20 38 39.521 +24 29 44.70 – V C57
2021-08-02 15:33:59 s 1 -177122.08 8 +282824.40 5150.0 – C57
2021-08-02 15:34:15 V 20 39 27.42 +25 17 03.6 14.9 V 247
2021-08-02 15:34:15 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:35:15 V 20 39 27.52 +25 17 08.6 15.1 V 247
2021-08-02 15:35:15 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:36:15 V 20 39 27.62 +25 17 14.1 15.0 V 247
2021-08-02 15:36:15 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:37:14 V 20 39 27.72 +25 17 18.9 14.9 V 247
2021-08-02 15:37:14 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:38:14 V 20 39 27.82 +25 17 24.3 15.0 V 247
2021-08-02 15:38:14 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:39:13 V 20 39 27.92 +25 17 29.6 15.0 V 247
2021-08-02 15:39:13 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:40:13 V 20 39 28.03 +25 17 34.7 15.1 V 247
2021-08-02 15:40:13 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:43:11 V 20 39 28.32 +25 17 50.4 14.7 V 247
2021-08-02 15:43:11 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:43:59 S 20 38 41.222 +24 30 37.51 – V C57
2021-08-02 15:43:59 s 1 -177346.10 7 +282363.40 8380.0 – C57
2021-08-02 15:44:11 V 20 39 28.40 +25 17 55.2 14.5 V 247
2021-08-02 15:44:11 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:45:11 V 20 39 28.51 +25 18 00.3 14.4 V 247
2021-08-02 15:45:11 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:46:10 V 20 39 28.63 +25 18 06.1 14.9 V 247
2021-08-02 15:46:10 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:47:10 V 20 39 28.73 +25 18 10.8 15.2 V 247
2021-08-02 15:47:10 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:49:09 V 20 39 28.92 +25 18 21.1 15.2 V 247
2021-08-02 15:49:09 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:50:08 V 20 39 29.03 +25 18 26.8 14.4 V 247
2021-08-02 15:50:08 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:51:08 V 20 39 29.17 +25 18 31.7 14.4 V 247
2021-08-02 15:51:08 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:52:08 V 20 39 29.24 +25 18 35.7 14.2 V 247
2021-08-02 15:52:08 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:53:07 V 20 39 29.32 +25 18 41.6 14.4 V 247
2021-08-02 15:53:07 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:53:59 S 20 38 43.008 +24 31 30.86 – V C57
2021-08-02 15:53:59 s 1 -177569.46 9 +281901.36 9460.0 – C57
2021-08-02 15:54:07 V 20 39 29.40 +25 18 47.6 14.6 V 247
2021-08-02 15:54:07 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:55:06 V 20 39 29.49 +25 18 52.1 14.9 V 247
2021-08-02 15:55:06 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:56:06 V 20 39 29.60 +25 18 57.3 15.2 V 247
2021-08-02 15:56:06 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:57:05 V 20 39 29.69 +25 19 02.0 15.0 V 247
2021-08-02 15:57:05 v 1 134.17916 +34.51205 – – 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)