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 13:53:59 S 20 38 22.382 +24 20 54.74 – V C57
2021-08-02 13:53:59 s 1 -174846.29 8 +287377.04 5890.0 – C57
2021-08-02 14:03:59 S 20 38 24.089 +24 21 49.25 – V C57
2021-08-02 14:03:59 s 1 -175076.75 5 +286926.46 280.0 – C57
2021-08-02 14:13:59 S 20 38 25.824 +24 22 42.46 – V C57
2021-08-02 14:13:59 s 1 -175306.57 9 +286474.84 2580.0 – C57
2021-08-02 14:23:59 S 20 38 27.502 +24 23 35.12 – V C57
2021-08-02 14:23:59 s 1 -175535.76 7 +286022.18 2800.0 – C57
2021-08-02 14:33:59 S 20 38 29.268 +24 24 27.79 – V C57
2021-08-02 14:33:59 s 1 -175764.31 7 +285568.48 910.0 – C57
2021-08-02 14:44:35 V 20 39 22.51 +25 12 41.9 14.7 V 247
2021-08-02 14:44:35 v 1 134.17916 +34.51205 – – 247
2021-08-02 14:45:35 V 20 39 22.61 +25 12 46.8 15.1 V 247
2021-08-02 14:45:35 v 1 134.17916 +34.51205 – – 247
2021-08-02 14:52:32 V 20 39 23.37 +25 13 23.5 14.0 V 247
2021-08-02 14:52:32 v 1 134.17916 +34.51205 – – 247
2021-08-02 14:53:59 S 20 38 32.710 +24 26 13.96 – V C57
2021-08-02 14:53:59 s 1 -176219.49 4 +284657.95 820.0 – C57
2021-08-02 14:55:30 V 20 39 23.60 +25 13 39.8 14.7 V 247
2021-08-02 14:55:30 v 1 134.17916 +34.51205 – – 247
2021-08-02 14:57:30 V 20 39 23.79 +25 13 49.9 14.4 V 247
2021-08-02 14:57:30 v 1 134.17916 +34.51205 – – 247
2021-08-02 14:58:29 V 20 39 23.89 +25 13 55.0 14.6 V 247
2021-08-02 14:58:29 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:00:28 V 20 39 24.09 +25 14 05.5 14.7 V 247
2021-08-02 15:00:28 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:02:27 V 20 39 24.27 +25 14 15.7 15.0 V 247
2021-08-02 15:02:27 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:03:59 S 20 38 34.387 +24 27 07.02 – V C57
2021-08-02 15:03:59 s 1 -176446.11 5 +284201.13 2600.0 – C57
2021-08-02 15:04:27 V 20 39 24.48 +25 14 26.1 15.0 V 247
2021-08-02 15:04:27 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:05:26 V 20 39 24.59 +25 14 31.6 15.1 V 247
2021-08-02 15:05:26 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:06:26 V 20 39 24.67 +25 14 37.0 14.9 V 247
2021-08-02 15:06:26 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:07:25 V 20 39 24.77 +25 14 42.2 14.8 V 247
2021-08-02 15:07:25 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:08:25 V 20 39 24.86 +25 14 47.6 14.6 V 247
2021-08-02 15:08:25 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:09:24 V 20 39 24.98 +25 14 52.7 14.4 V 247
2021-08-02 15:09:24 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:13:59 S 20 38 36.065 +24 28 00.23 – V C57
2021-08-02 15:13:59 s 1 -176672.09 0 +283743.26 2250.0 – C57
2021-08-02 15:23:59 S 20 38 37.798 +24 28 51.78 – V C57
2021-08-02 15:23:59 s 1 -176897.41 5 +283284.35 9770.0 – C57
2021-08-02 15:31:17 V 20 39 27.14 +25 16 47.8 14.6 V 247
2021-08-02 15:31:17 v 1 134.17916 +34.51205 – – 247
2021-08-02 15:32:16 V 20 39 27.23 +25 16 53.1 14.6 V 247
2021-08-02 15:32:16 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)