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
2021-08-03 03:43:59 S 20 40 43.822 +25 33 08.06 – V C57
2021-08-03 03:43:59 s 1 -191592.44 4 +246383.01 50.0 – C57
2021-08-03 03:47:05 C 20 41 00.82 +26 19 42.0 – V V93
2021-08-03 03:53:59 S 20 40 45.521 +25 34 00.62 – V C57
2021-08-03 03:53:59 s 1 -191761.68 7 +245843.93 4360.0 – C57
2021-08-03 04:03:59 S 20 40 47.225 +25 34 51.56 – V C57
2021-08-03 04:03:59 s 1 -191930.07 3 +245303.75 5890.0 – C57
2021-08-03 04:13:59 S 20 40 48.878 +25 35 42.76 – V C57
2021-08-03 04:13:59 s 1 -192097.59 8 +244762.48 4610.0 – C57
2021-08-03 04:23:59 S 20 40 50.532 +25 36 33.73 – V C57
2021-08-03 04:23:59 s 1 -192264.25 9 +244220.10 520.0 – C57
2021-08-03 04:31:38 C 20 41 05.31 +26 23 28.7 – V V93
2021-08-03 04:33:59 S 20 40 52.234 +25 37 26.47 – V C57
2021-08-03 04:33:59 s 1 -192430.05 1 +243676.64 3620.0 – C57
2021-08-03 04:43:59 S 20 40 53.921 +25 38 16.01 – V C57
2021-08-03 04:43:59 s 1 -192594.97 4 +243132.07 3880.0 – C57
2021-08-03 04:53:59 S 20 40 55.613 +25 39 07.06 – V C57
2021-08-03 04:53:59 s 1 -192759.02 2 +242586.40 1300.0 – C57
2021-08-03 05:03:59 S 20 40 57.293 +25 39 58.75 – V C57
2021-08-03 05:03:59 s 1 -192922.19 2 +242039.63 5870.0 – C57
2021-08-03 05:13:59 S 20 40 59.014 +25 40 49.26 – V C57
2021-08-03 05:13:59 s 1 -193084.48 2 +241491.76 7570.0 – C57
2021-08-03 05:23:59 S 20 41 00.634 +25 41 42.90 – V C57
2021-08-03 05:23:59 s 1 -193245.88 7 +240942.79 6410.0 – C57
2021-08-03 05:43:59 S 20 41 04.085 +25 43 24.24 – V C57
2021-08-03 05:43:59 s 1 -193566.03 2 +239841.55 5410.0 – C57
2021-08-03 05:53:59 S 20 41 05.729 +25 44 15.00 – V C57
2021-08-03 05:53:59 s 1 -193724.76 5 +239289.27 5560.0 – C57
2021-08-03 06:03:59 S 20 41 07.433 +25 45 06.62 – V C57
2021-08-03 06:03:59 s 1 -193882.60 0 +238735.88 2790.0 – C57
2021-08-03 06:13:59 S 20 41 09.106 +25 45 57.49 – V C57
2021-08-03 06:13:59 s 1 -194039.53 3 +238181.39 7100.0 – C57
2021-08-03 06:23:59 S 20 41 10.793 +25 46 48.32 – V C57
2021-08-03 06:23:59 s 1 -194195.56 2 +237625.80 8470.0 – C57
2021-08-03 06:33:59 S 20 41 12.425 +25 47 38.72 – V C57
2021-08-03 06:33:59 s 1 -194350.68 3 +237069.09 6890.0 – C57
2021-08-03 06:43:59 S 20 41 14.198 +25 48 30.53 – V C57
2021-08-03 06:43:59 s 1 -194504.89 2 +236511.28 2350.0 – C57
2021-08-03 06:53:59 S 20 41 15.866 +25 49 20.68 – V C57
2021-08-03 06:53:59 s 1 -194658.18 6 +235952.37 4840.0 – C57
2021-08-03 07:03:59 S 20 41 17.544 +25 50 12.52 – V C57
2021-08-03 07:03:59 s 1 -194810.56 1 +235392.34 4350.0 – C57
2021-08-03 07:13:59 S 20 41 19.236 +25 51 04.36 – V C57
2021-08-03 07:13:59 s 1 -194962.01 4 +234831.20 860.0 – C57
2021-08-03 07:23:59 S 20 41 20.926 +25 51 55.26 – V C57
2021-08-03 07:23:59 s 1 -195112.54 1 +234268.95 4370.0 – C57
2021-08-03 07:33:59 S 20 41 22.589 +25 52 46.52 – V C57
2021-08-03 07:33:59 s 1 -195262.13 8 +233705.59 4860.0 – C57
2021-08-03 07:43:59 S 20 41 24.266 +25 53 36.89 – V C57
2021-08-03 07:43:59 s 1 -195410.80 3 +233141.12 2320.0 – 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)