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
2021-06-04 16:34:03 S 16 25 14.182 -68 33 42.52 – V C57
2021-06-04 16:34:03 s 1 -108325.86 2 +371235.29 2250.0 – C57
2021-06-04 16:44:03 S 16 25 15.166 -68 33 48.92 – V C57
2021-06-04 16:44:03 s 1 -108645.41 0 +370989.54 2040.0 – C57
2021-06-04 17:14:03 S 16 25 16.325 -68 34 03.29 – V C57
2021-06-04 17:14:03 s 1 -109602.46 0 +370246.83 6280.0 – C57
2021-06-04 17:24:03 S 16 25 17.621 -68 34 11.42 – V C57
2021-06-04 17:24:03 s 1 -109920.94 1 +369997.44 2640.0 – C57
2021-06-04 17:34:03 S 16 25 18.288 -68 34 15.02 – V C57
2021-06-04 17:34:03 s 1 -110239.15 3 +369747.15 8130.0 – C57
2021-06-04 17:44:03 S 16 25 18.499 -68 34 22.51 – V C57
2021-06-04 17:44:03 s 1 -110557.09 4 +369495.94 2750.0 – C57
2021-06-04 17:54:03 S 16 25 19.332 -68 34 30.36 – V C57
2021-06-04 17:54:03 s 1 -110874.76 4 +369243.82 6500.0 – C57
2021-06-04 18:04:03 S 16 25 20.760 -68 34 32.59 – V C57
2021-06-04 18:04:03 s 1 -111192.16 0 +368990.79 9380.0 – C57
2021-06-04 18:14:03 S 16 25 20.856 -68 34 36.91 – V C57
2021-06-04 18:14:03 s 1 -111509.28 3 +368736.85 1380.0 – C57
2021-06-04 19:04:03 S 16 25 24.014 -68 35 05.86 – V C57
2021-06-04 19:04:03 s 1 -113090.75 0 +367453.47 8080.0 – C57
2021-06-04 19:14:03 S 16 25 24.890 -68 35 08.92 – V C57
2021-06-04 19:14:03 s 1 -113406.20 6 +367194.05 4740.0 – C57
2021-06-04 19:24:03 S 16 25 25.591 -68 35 18.85 – V C57
2021-06-04 19:24:03 s 1 -113721.38 1 +366933.72 510.0 – C57
2021-06-04 19:34:03 S 16 25 26.268 -68 35 19.03 – V C57
2021-06-04 19:34:03 s 1 -114036.27 2 +366672.48 5370.0 – C57
2021-06-04 20:14:03 S 16 25 29.556 -68 35 43.22 – V C57
2021-06-04 20:14:03 s 1 -115292.98 9 +365618.34 5720.0 – C57
2021-06-04 20:44:03 S 16 25 31.481 -68 36 01.48 – V C57
2021-06-04 20:44:03 s 1 -116232.50 2 +364818.12 3850.0 – C57
2021-06-04 20:54:03 S 16 25 31.951 -68 36 09.11 – V C57
2021-06-04 20:54:03 s 1 -116545.09 1 +364549.54 1380.0 – C57
2021-06-04 21:14:03 S 16 25 33.677 -68 36 21.64 – V C57
2021-06-04 21:14:03 s 1 -117169.38 8 +364009.64 3630.0 – C57
2021-06-04 21:24:03 S 16 25 33.905 -68 36 19.94 – V C57
2021-06-04 21:24:03 s 1 -117481.09 5 +363738.31 8360.0 – C57
2021-06-04 22:14:03 S 16 25 37.294 -68 36 49.46 – V C57
2021-06-04 22:14:03 s 1 -119035.15 6 +362367.84 7800.0 – C57
2021-06-04 22:24:03 S 16 25 38.326 -68 36 53.14 – V C57
2021-06-04 22:24:03 s 1 -119345.06 6 +362090.98 6830.0 – C57
2021-06-04 23:34:03 S 16 25 42.636 -68 37 31.66 – V C57
2021-06-04 23:34:03 s 1 -121505.87 4 +360127.14 2990.0 – C57
2021-06-04 23:44:03 S 16 25 43.486 -68 37 37.16 – V C57
2021-06-04 23:44:03 s 1 -121813.32 3 +359842.89 4250.0 – C57
2021-06-04 23:54:03 S 16 25 43.435 -68 37 43.54 – V C57
2021-06-04 23:54:03 s 1 -122120.45 9 +359557.72 4530.0 – C57
2021-06-05 00:04:03 S 16 25 44.398 -68 37 49.66 – V C57
2021-06-05 00:04:03 s 1 -122427.28 1 +359271.62 3810.0 – C57
2021-06-05 00:14:03 S 16 25 44.976 -68 37 55.85 – V C57
2021-06-05 00:14:03 s 1 -122733.78 8 +358984.59 2110.0 – 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)