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 15:58:05 V 20 39 29.81 +25 19 07.6 14.8 V 247
2021-08-02 15:58:05 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:59:05 V 20 39 29.89 +25 19 12.9 15.3 V 247
2021-08-02 15:59:05 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:01:04 V 20 39 30.09 +25 19 23.7 15.5 V 247
2021-08-02 16:01:04 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:03:59 S 20 38 44.681 +24 32 23.89 – V C57
2021-08-02 16:03:59 s 1 -177792.17 2 +281438.27 8370.0 – C57
2021-08-02 16:13:59 S 20 38 46.373 +24 33 16.74 – V C57
2021-08-02 16:13:59 s 1 -178014.21 4 +280974.13 5110.0 – C57
2021-08-02 16:20:48 V 20 39 32.02 +25 21 06.1 15.4 V 247
2021-08-02 16:20:48 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:23:59 S 20 38 48.103 +24 34 09.73 – V C57
2021-08-02 16:23:59 s 1 -178235.59 3 +280508.95 9670.0 – C57
2021-08-02 16:24:54 V 20 39 32.44 +25 21 28.2 14.2 V 247
2021-08-02 16:24:54 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:25:54 V 20 39 32.53 +25 21 33.4 13.9 V 247
2021-08-02 16:25:54 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:28:53 V 20 39 32.84 +25 21 48.6 14.0 V 247
2021-08-02 16:28:53 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:29:52 V 20 39 32.94 +25 21 53.7 14.0 V 247
2021-08-02 16:29:52 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:30:52 V 20 39 33.04 +25 21 58.9 14.7 V 247
2021-08-02 16:30:52 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:31:51 V 20 39 33.14 +25 22 04.2 14.0 V 247
2021-08-02 16:31:51 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:32:51 V 20 39 33.26 +25 22 09.7 13.7 V 247
2021-08-02 16:32:51 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:33:59 S 20 38 49.786 +24 35 01.72 – V C57
2021-08-02 16:33:59 s 1 -178456.30 5 +280042.71 2050.0 – C57
2021-08-02 16:34:30 V 20 39 33.46 +25 22 18.1 13.5 V 247
2021-08-02 16:34:30 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:36:25 V 20 39 33.60 +25 22 28.2 14.3 V 247
2021-08-02 16:36:25 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:37:25 V 20 39 33.70 +25 22 33.3 15.0 V 247
2021-08-02 16:37:25 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:40:23 V 20 39 33.99 +25 22 48.4 14.8 V 247
2021-08-02 16:40:23 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:41:23 V 20 39 34.10 +25 22 53.6 14.4 V 247
2021-08-02 16:41:23 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:42:23 V 20 39 34.20 +25 22 59.0 14.2 V 247
2021-08-02 16:42:23 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:43:22 V 20 39 34.23 +25 23 04.2 14.4 V 247
2021-08-02 16:43:22 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:43:59 S 20 38 51.504 +24 35 54.06 – V C57
2021-08-02 16:43:59 s 1 -178676.34 9 +279575.44 2240.0 – C57
2021-08-02 16:44:22 V 20 39 34.38 +25 23 08.6 14.2 V 247
2021-08-02 16:44:22 v 1 134.17916 +34.51205 – – 247
2021-08-02 16:45:25 V 20 39 34.46 +25 23 13.3 14.2 V 247
2021-08-02 16:45:25 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)