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
2021-06-22 01:14:02 S 17 08 58.985 -68 43 50.92 – V C57
2021-06-22 01:14:02 s 1 -195950.94 8 +192351.25 270.0 – C57
2021-06-22 01:24:02 S 17 09 00.576 -68 43 49.55 – V C57
2021-06-22 01:24:02 s 1 -196012.40 9 +191686.00 4700.0 – C57
2021-06-22 01:34:02 S 17 09 02.434 -68 43 48.90 – V C57
2021-06-22 01:34:02 s 1 -196072.58 5 +191019.50 5310.0 – C57
2021-06-22 01:44:02 S 17 09 03.960 -68 43 48.07 – V C57
2021-06-22 01:44:02 s 1 -196131.47 0 +190351.77 2090.0 – C57
2021-06-22 02:04:02 S 17 09 07.476 -68 43 45.48 – V C57
2021-06-22 02:04:02 s 1 -196245.34 3 +189012.58 4080.0 – C57
2021-06-22 02:34:02 S 17 09 11.851 -68 43 43.54 – V C57
2021-06-22 02:34:02 s 1 -196406.31 8 +186994.48 7870.0 – C57
2021-06-22 02:44:02 S 17 09 13.764 -68 43 42.38 – V C57
2021-06-22 02:44:02 s 1 -196457.32 9 +186319.28 1270.0 – C57
2021-06-22 02:54:02 S 17 09 15.530 -68 43 42.20 – V C57
2021-06-22 02:54:02 s 1 -196507.00 6 +185642.84 720.0 – C57
2021-06-22 03:04:02 S 17 09 17.090 -68 43 40.08 – V C57
2021-06-22 03:04:02 s 1 -196555.34 2 +184965.15 6180.0 – C57
2021-06-22 03:14:02 S 17 09 18.725 -68 43 39.32 – V C57
2021-06-22 03:14:02 s 1 -196602.33 2 +184286.21 7660.0 – C57
2021-06-22 03:34:02 S 17 09 21.682 -68 43 36.12 – V C57
2021-06-22 03:34:02 s 1 -196692.24 4 +182924.58 8540.0 – C57
2021-06-22 03:44:02 S 17 09 23.263 -68 43 33.56 – V C57
2021-06-22 03:44:02 s 1 -196735.15 4 +182241.88 7910.0 – C57
2021-06-22 03:54:02 S 17 09 25.154 -68 43 33.92 – V C57
2021-06-22 03:54:02 s 1 -196776.69 1 +181557.93 3220.0 – C57
2021-06-22 04:34:02 S 17 09 31.358 -68 43 31.58 – V C57
2021-06-22 04:34:02 s 1 -196928.97 8 +178809.56 3340.0 – C57
2021-06-22 05:14:02 S 17 09 37.822 -68 43 29.89 – V C57
2021-06-22 05:14:02 s 1 -197058.76 1 +176041.04 6790.0 – C57
2021-06-22 05:24:02 S 17 09 39.396 -68 43 25.61 – V C57
2021-06-22 05:24:02 s 1 -197087.64 0 +175345.75 4580.0 – C57
2021-06-22 05:34:02 S 17 09 40.877 -68 43 24.74 – V C57
2021-06-22 05:34:02 s 1 -197115.07 7 +174649.19 8110.0 – C57
2021-06-22 05:44:02 S 17 09 42.674 -68 43 22.80 – V C57
2021-06-22 05:44:02 s 1 -197141.06 6 +173951.37 7340.0 – C57
2021-06-22 05:54:02 S 17 09 44.100 -68 43 22.40 – V C57
2021-06-22 05:54:02 s 1 -197165.60 0 +173252.28 2270.0 – C57
2021-06-22 06:04:02 S 17 09 46.087 -68 43 20.53 – V C57
2021-06-22 06:04:02 s 1 -197188.67 2 +172551.93 2880.0 – C57
2021-06-22 06:14:02 S 17 09 47.352 -68 43 20.50 – V C57
2021-06-22 06:14:02 s 1 -197210.27 4 +171850.30 9130.0 – C57
2021-06-22 06:24:02 S 17 09 49.150 -68 43 20.21 – V C57
2021-06-22 06:24:02 s 1 -197230.39 9 +171147.41 1010.0 – C57
2021-06-22 06:54:02 S 17 09 53.923 -68 43 17.69 – V C57
2021-06-22 06:54:02 s 1 -197281.83 9 +169031.08 210.0 – C57
2021-06-22 07:04:02 S 17 09 55.332 -68 43 17.69 – V C57
2021-06-22 07:04:02 s 1 -197295.98 3 +168323.10 4400.0 – C57
2021-06-22 07:14:02 S 17 09 57.019 -68 43 15.78 – V C57
2021-06-22 07:14:02 s 1 -197308.61 2 +167613.83 4110.0 – 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)