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
2021-06-16 22:34:02 S 16 47 34.656 -68 58 58.66 – V C57
2021-06-16 22:44:02 S 16 47 34.505 -68 58 54.77 – V C57
2021-06-16 22:54:02 S 16 47 36.696 -68 58 56.14 – V C57
2021-06-17 03:14:02 S 16 48 20.150 -68 58 12.68 – V C57
2021-06-17 03:24:02 S 16 48 20.933 -68 58 13.15 – V C57
2021-06-17 03:54:02 S 16 48 29.474 -68 58 21.32 – V C57
2021-06-17 07:54:02 S 16 49 09.043 -68 57 42.44 – V C57
2021-06-17 07:54:02 s 1 -11925.954 0 +405459.45 0.0 – C57
2021-06-17 08:04:02 S 16 49 10.442 -68 57 37.84 – V C57
2021-06-17 08:04:02 s 1 -12283.842 0 +405456.18 860.0 – C57
2021-06-17 08:14:02 S 16 49 12.413 -68 57 40.57 – V C57
2021-06-17 08:14:02 s 1 -12641.697 0 +405452.03 1500.0 – C57
2021-06-17 08:44:02 S 16 49 17.618 -68 57 35.46 – V C57
2021-06-17 08:44:02 s 1 -13715.048 0 +405434.38 1980.0 – C57
2021-06-17 08:54:02 S 16 49 19.802 -68 57 36.04 – V C57
2021-06-17 08:54:02 s 1 -14072.759 0 +405426.76 1660.0 – C57
2021-06-17 09:04:02 S 16 49 21.060 -68 57 31.03 – V C57
2021-06-17 09:04:02 s 1 -14430.431 0 +405418.27 1090.0 – C57
2021-06-17 10:04:02 S 16 49 31.694 -68 57 25.13 – V C57
2021-06-17 10:04:02 s 1 -16575.627 0 +405349.10 2470.0 – C57
2021-06-17 10:14:02 S 16 49 33.247 -68 57 23.26 – V C57
2021-06-17 10:14:02 s 1 -16933.013 0 +405334.53 150.0 – C57
2021-06-17 10:24:02 S 16 49 34.740 -68 57 21.46 – V C57
2021-06-17 10:24:02 s 1 -17290.354 0 +405319.09 7560.0 – C57
2021-06-17 10:34:02 S 16 49 36.578 -68 57 19.98 – V C57
2021-06-17 10:34:02 s 1 -17647.650 0 +405302.79 4710.0 – C57
2021-06-17 10:44:02 S 16 49 38.011 -68 57 21.20 – V C57
2021-06-17 10:44:02 s 1 -18004.900 0 +405285.62 1590.0 – C57
2021-06-17 10:54:02 S 16 49 39.749 -68 57 19.55 – V C57
2021-06-17 10:54:02 s 1 -18362.104 0 +405267.58 8210.0 – C57
2021-06-17 11:04:02 S 16 49 41.503 -68 57 17.96 – V C57
2021-06-17 11:04:02 s 1 -18719.260 0 +405248.67 4560.0 – C57
2021-06-17 11:14:02 S 16 49 43.118 -68 57 16.92 – V C57
2021-06-17 11:14:02 s 1 -19076.369 0 +405228.89 640.0 – C57
2021-06-17 11:24:02 S 16 49 44.930 -68 57 14.69 – V C57
2021-06-17 11:24:02 s 1 -19433.428 0 +405208.25 6450.0 – C57
2021-06-17 11:34:02 S 16 49 46.721 -68 57 12.42 – V C57
2021-06-17 11:34:02 s 1 -19790.438 0 +405186.74 1980.0 – C57
2021-06-17 11:44:02 S 16 49 48.221 -68 57 10.66 – V C57
2021-06-17 11:44:02 s 1 -20147.397 0 +405164.36 7240.0 – C57
2021-06-17 11:54:02 S 16 49 49.814 -68 57 11.20 – V C57
2021-06-17 11:54:02 s 1 -20504.305 0 +405141.11 2220.0 – C57
2021-06-17 12:04:02 S 16 49 51.530 -68 57 08.96 – V C57
2021-06-17 12:04:02 s 1 -20861.161 0 +405117.00 6910.0 – C57
2021-06-17 12:14:02 S 16 49 53.033 -68 57 07.63 – V C57
2021-06-17 12:14:02 s 1 -21217.964 0 +405092.02 1330.0 – C57
2021-06-17 12:34:02 S 16 49 56.664 -68 57 05.51 – V C57
2021-06-17 12:34:02 s 1 -21931.409 0 +405039.45 9300.0 – C57
2021-06-17 15:24:02 S 16 50 25.829 -68 56 41.64 – V C57
2021-06-17 15:24:02 s 1 -27986.145 0 +404452.62 8670.0 – 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)