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
2021-06-17 21:14:02 S 16 51 26.441 -68 55 56.86 – V C57
2021-06-17 21:14:02 s 1 -40385.108 0 +402455.72 1780.0 – C57
2021-06-17 21:24:02 S 16 51 28.092 -68 55 54.16 – V C57
2021-06-17 21:24:02 s 1 -40737.794 0 +402383.06 7420.0 – C57
2021-06-17 22:14:02 S 16 51 37.226 -68 55 47.82 – V C57
2021-06-17 22:14:02 s 1 -42499.753 0 +402006.78 9550.0 – C57
2021-06-17 22:24:02 S 16 51 38.378 -68 55 47.32 – V C57
2021-06-17 22:24:02 s 1 -42851.844 0 +401928.92 2750.0 – C57
2021-06-17 22:34:02 S 16 51 40.678 -68 55 46.45 – V C57
2021-06-17 22:34:02 s 1 -43203.834 0 +401850.20 5540.0 – C57
2021-06-17 22:44:02 S 16 51 41.774 -68 55 45.19 – V C57
2021-06-17 22:44:02 s 1 -43555.722 0 +401770.60 7910.0 – C57
2021-06-17 22:54:02 S 16 51 43.675 -68 55 45.08 – V C57
2021-06-17 22:54:02 s 1 -43907.505 0 +401690.14 9870.0 – C57
2021-06-17 23:04:02 S 16 51 45.322 -68 55 40.26 – V C57
2021-06-17 23:04:02 s 1 -44259.185 0 +401608.82 1400.0 – C57
2021-06-17 23:14:02 S 16 51 47.285 -68 55 40.62 – V C57
2021-06-17 23:14:02 s 1 -44610.759 0 +401526.62 2520.0 – C57
2021-06-17 23:24:02 S 16 51 49.330 -68 55 38.78 – V C57
2021-06-17 23:24:02 s 1 -44962.228 0 +401443.56 3200.0 – C57
2021-06-17 23:34:02 S 16 51 50.681 -68 55 38.57 – V C57
2021-06-17 23:34:02 s 1 -45313.590 0 +401359.63 3470.0 – C57
2021-06-17 23:44:02 S 16 51 52.783 -68 55 37.09 – V C57
2021-06-17 23:44:02 s 1 -45664.845 0 +401274.83 3300.0 – C57
2021-06-17 23:54:02 S 16 51 53.971 -68 55 35.11 – V C57
2021-06-17 23:54:02 s 1 -46015.991 0 +401189.17 2700.0 – C57
2021-06-18 00:24:02 S 16 51 59.311 -68 55 29.50 – V C57
2021-06-18 00:24:02 s 1 -47068.772 0 +400926.97 8300.0 – C57
2021-06-18 00:44:02 S 16 52 03.034 -68 55 27.95 – V C57
2021-06-18 00:44:02 s 1 -47770.070 0 +400747.83 3180.0 – C57
2021-06-18 01:14:02 S 16 52 08.280 -68 55 24.46 – V C57
2021-06-18 01:14:02 s 1 -48821.167 0 +400472.61 2160.0 – C57
2021-06-18 01:24:02 S 16 52 09.914 -68 55 22.76 – V C57
2021-06-18 01:24:02 s 1 -49171.303 0 +400379.13 7590.0 – C57
2021-06-18 01:44:02 S 16 52 13.121 -68 55 20.57 – V C57
2021-06-18 01:44:02 s 1 -49871.224 0 +400189.57 7080.0 – C57
2021-06-18 01:54:02 S 16 52 14.990 -68 55 18.44 – V C57
2021-06-18 01:54:02 s 1 -50221.008 0 +400093.49 1150.0 – C57
2021-06-18 02:04:02 S 16 52 17.251 -68 55 19.56 – V C57
2021-06-18 02:04:02 s 1 -50570.673 0 +399996.54 4750.0 – C57
2021-06-18 02:14:02 S 16 52 18.415 -68 55 17.18 – V C57
2021-06-18 02:14:02 s 1 -50920.219 0 +399898.72 7890.0 – C57
2021-06-18 02:24:02 S 16 52 20.443 -68 55 16.90 – V C57
2021-06-18 02:24:02 s 1 -51269.644 0 +399800.03 570.0 – C57
2021-06-18 02:34:02 S 16 52 22.085 -68 55 15.49 – V C57
2021-06-18 02:34:02 s 1 -51618.948 0 +399700.48 2790.0 – C57
2021-06-18 02:44:02 S 16 52 23.820 -68 55 14.05 – V C57
2021-06-18 02:44:02 s 1 -51968.130 0 +399600.05 4540.0 – C57
2021-06-18 02:54:02 S 16 52 25.798 -68 55 11.28 – V C57
2021-06-18 02:54:02 s 1 -52317.189 0 +399498.76 5810.0 – 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)