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 06:44:03 S 16 24 34.111 -68 28 19.63 – V C57
2021-06-04 06:44:03 s 1 -89040.673 0 +384140.23 5670.0 – C57
2021-06-04 06:54:03 S 16 24 33.660 -68 28 24.64 – V C57
2021-06-04 06:54:03 s 1 -89374.041 0 +383947.44 840.0 – C57
2021-06-04 07:14:03 S 16 24 35.714 -68 28 40.58 – V C57
2021-06-04 07:14:03 s 1 -90040.158 0 +383559.19 9110.0 – C57
2021-06-04 08:24:03 S 16 24 39.826 -68 29 16.26 – V C57
2021-06-04 08:24:03 s 1 -92364.985 0 +382172.29 6000.0 – C57
2021-06-04 09:24:03 S 16 24 44.225 -68 29 48.91 – V C57
2021-06-04 09:24:03 s 1 -94349.353 0 +380948.77 4090.0 – C57
2021-06-04 10:14:03 S 16 24 48.079 -68 30 15.73 – V C57
2021-06-04 10:14:03 s 1 -95996.951 0 +379904.62 5780.0 – C57
2021-06-04 10:24:03 S 16 24 48.497 -68 30 23.44 – V C57
2021-06-04 10:24:03 s 1 -96325.800 0 +379693.11 5900.0 – C57
2021-06-04 10:34:03 S 16 24 49.901 -68 30 26.57 – V C57
2021-06-04 10:34:03 s 1 -96654.423 0 +379480.70 5270.0 – C57
2021-06-04 10:44:03 S 16 24 50.030 -68 30 27.90 – V C57
2021-06-04 10:44:03 s 1 -96982.819 0 +379267.40 3890.0 – C57
2021-06-04 10:54:03 S 16 24 50.443 -68 30 37.58 – V C57
2021-06-04 10:54:03 s 1 -97310.987 0 +379053.20 1770.0 – C57
2021-06-04 11:04:03 S 16 24 51.283 -68 30 44.32 – V C57
2021-06-04 11:04:03 s 1 -97638.926 0 +378838.11 8880.0 – C57
2021-06-04 11:14:03 S 16 24 52.279 -68 30 45.83 – V C57
2021-06-04 11:14:03 s 1 -97966.636 0 +378622.12 5240.0 – C57
2021-06-04 11:34:03 S 16 24 53.124 -68 30 59.18 – V C57
2021-06-04 11:34:03 s 1 -98621.360 0 +378187.45 5680.0 – C57
2021-06-04 11:44:03 S 16 24 54.701 -68 31 03.18 – V C57
2021-06-04 11:44:03 s 1 -98948.374 0 +377968.77 9750.0 – C57
2021-06-04 12:34:03 S 16 24 57.667 -68 31 34.97 – V C57
2021-06-04 12:34:03 s 1 -100579.91 3 +376861.90 8540.0 – C57
2021-06-04 13:24:03 S 16 25 00.838 -68 32 02.33 – V C57
2021-06-04 13:24:03 s 1 -102205.47 8 +375732.56 7770.0 – C57
2021-06-04 14:04:03 S 16 25 04.195 -68 32 16.12 – V C57
2021-06-04 14:04:03 s 1 -103501.54 2 +374812.87 4830.0 – C57
2021-06-04 14:14:03 S 16 25 04.956 -68 32 24.50 – V C57
2021-06-04 14:14:03 s 1 -103824.94 0 +374580.70 7090.0 – C57
2021-06-04 14:44:03 S 16 25 06.127 -68 32 41.42 – V C57
2021-06-04 14:44:03 s 1 -104793.63 4 +373878.75 8980.0 – C57
2021-06-04 15:14:03 S 16 25 08.508 -68 32 58.42 – V C57
2021-06-04 15:14:03 s 1 -105760.05 7 +373168.67 3500.0 – C57
2021-06-04 15:34:03 S 16 25 10.289 -68 33 08.06 – V C57
2021-06-04 15:34:03 s 1 -106403.06 3 +372690.76 5710.0 – C57
2021-06-04 15:54:03 S 16 25 11.671 -68 33 19.01 – V C57
2021-06-04 15:54:03 s 1 -107045.03 8 +372209.23 4590.0 – C57
2021-06-04 16:04:03 S 16 25 12.300 -68 33 28.26 – V C57
2021-06-04 16:04:03 s 1 -107365.63 6 +371967.11 7770.0 – C57
2021-06-04 16:14:03 S 16 25 13.056 -68 33 32.51 – V C57
2021-06-04 16:14:03 s 1 -107685.97 4 +371724.08 110.0 – C57
2021-06-04 16:24:03 S 16 25 13.332 -68 33 35.03 – V C57
2021-06-04 16:24:03 s 1 -108006.04 9 +371480.14 1600.0 – 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)