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 08:33:59 S 20 37 27.396 +23 52 27.26 – V C57
2021-08-02 08:33:59 s 1 -167150.49 4 +301252.41 3030.0 – C57
2021-08-02 09:03:59 S 20 37 32.508 +23 55 09.66 – V C57
2021-08-02 09:03:59 s 1 -167897.58 1 +299996.39 9880.0 – C57
2021-08-02 09:13:59 S 20 37 34.258 +23 56 03.08 – V C57
2021-08-02 09:13:59 s 1 -168145.47 2 +299575.67 1730.0 – C57
2021-08-02 09:23:59 S 20 37 36.019 +23 56 55.93 – V C57
2021-08-02 09:23:59 s 1 -168392.79 2 +299153.93 1700.0 – C57
2021-08-02 09:33:59 S 20 37 37.680 +23 57 49.72 – V C57
2021-08-02 09:33:59 s 1 -168639.53 7 +298731.17 9770.0 – C57
2021-08-02 09:53:59 S 20 37 41.124 +23 59 37.86 – V C57
2021-08-02 09:53:59 s 1 -169131.29 9 +297882.58 200.0 – C57
2021-08-02 10:03:59 S 20 37 42.874 +24 00 30.74 – V C57
2021-08-02 10:03:59 s 1 -169376.31 0 +297456.75 2540.0 – C57
2021-08-02 10:13:59 S 20 37 44.597 +24 01 24.64 – V C57
2021-08-02 10:13:59 s 1 -169620.74 0 +297029.90 2970.0 – C57
2021-08-02 10:23:59 S 20 37 46.296 +24 02 17.56 – V C57
2021-08-02 10:23:59 s 1 -169864.58 5 +296602.02 1460.0 – C57
2021-08-02 10:53:59 S 20 37 51.478 +24 04 57.97 – V C57
2021-08-02 10:53:59 s 1 -170592.59 5 +295312.23 5310.0 – C57
2021-08-02 11:03:59 S 20 37 53.160 +24 05 51.25 – V C57
2021-08-02 11:03:59 s 1 -170834.08 3 +294880.25 6030.0 – C57
2021-08-02 11:23:59 S 20 37 56.606 +24 07 37.92 – V C57
2021-08-02 11:23:59 s 1 -171315.27 4 +294013.20 1570.0 – C57
2021-08-02 11:33:59 S 20 37 58.363 +24 08 31.16 – V C57
2021-08-02 11:33:59 s 1 -171554.97 2 +293578.13 6390.0 – C57
2021-08-02 11:43:59 S 20 38 00.026 +24 09 24.80 – V C57
2021-08-02 11:43:59 s 1 -171794.06 9 +293142.03 9220.0 – C57
2021-08-02 11:53:59 S 20 38 01.747 +24 10 17.40 – V C57
2021-08-02 11:53:59 s 1 -172032.56 3 +292704.90 70.0 – C57
2021-08-02 12:03:59 S 20 38 03.533 +24 11 10.46 – V C57
2021-08-02 12:03:59 s 1 -172270.45 2 +292266.74 8920.0 – C57
2021-08-02 12:13:59 S 20 38 05.203 +24 12 04.25 – V C57
2021-08-02 12:13:59 s 1 -172507.73 4 +291827.55 5780.0 – C57
2021-08-02 12:23:59 S 20 38 06.943 +24 12 57.96 – V C57
2021-08-02 12:23:59 s 1 -172744.40 7 +291387.33 620.0 – C57
2021-08-02 12:33:59 S 20 38 08.633 +24 13 51.06 – V C57
2021-08-02 12:33:59 s 1 -172980.46 8 +290946.07 3450.0 – C57
2021-08-02 12:43:59 S 20 38 10.414 +24 14 44.12 – V C57
2021-08-02 12:43:59 s 1 -173215.91 5 +290503.78 4260.0 – C57
2021-08-02 12:53:59 S 20 38 12.098 +24 15 38.16 – V C57
2021-08-02 12:53:59 s 1 -173450.73 8 +290060.42 3120.0 – C57
2021-08-02 13:03:59 S 20 38 13.831 +24 16 30.32 – V C57
2021-08-02 13:03:59 s 1 -173684.56 1 +289614.29 3140.0 – C57
2021-08-02 13:23:59 S 20 38 17.261 +24 18 16.70 – V C57
2021-08-02 13:23:59 s 1 -174151.14 6 +288722.56 300.0 – C57
2021-08-02 13:33:59 S 20 38 18.965 +24 19 09.08 – V C57
2021-08-02 13:33:59 s 1 -174383.49 1 +288275.09 890.0 – C57
2021-08-02 13:43:59 S 20 38 20.654 +24 20 01.90 – V C57
2021-08-02 13:43:59 s 1 -174615.20 9 +287826.59 9430.0 – C57
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)