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
2021-06-20 12:04:02 S 17 02 34.222 -68 47 59.75 – V C57
2021-06-20 12:04:02 s 1 -158422.92 7 +311929.63 30.0 – C57
2021-06-20 12:24:02 S 17 02 37.642 -68 47 57.48 – V C57
2021-06-20 12:24:02 s 1 -158916.60 2 +311094.53 3740.0 – C57
2021-06-20 12:34:02 S 17 02 39.744 -68 47 55.54 – V C57
2021-06-20 12:34:02 s 1 -159162.64 6 +310675.47 3170.0 – C57
2021-06-20 12:44:02 S 17 02 41.326 -68 47 54.13 – V C57
2021-06-20 12:44:02 s 1 -159408.15 7 +310255.40 960.0 – C57
2021-06-20 13:14:02 S 17 02 46.459 -68 47 48.98 – V C57
2021-06-20 13:14:02 s 1 -160141.48 3 +308989.15 4510.0 – C57
2021-06-20 13:24:02 S 17 02 48.281 -68 47 49.78 – V C57
2021-06-20 13:24:02 s 1 -160384.84 8 +308565.04 5730.0 – C57
2021-06-20 13:44:02 S 17 02 51.922 -68 47 47.40 – V C57
2021-06-20 13:44:02 s 1 -160869.95 3 +307713.80 3200.0 – C57
2021-06-20 13:54:02 S 17 02 53.597 -68 47 45.31 – V C57
2021-06-20 13:54:02 s 1 -161111.68 8 +307286.66 9430.0 – C57
2021-06-20 14:04:02 S 17 02 55.675 -68 47 46.39 – V C57
2021-06-20 14:04:02 s 1 -161352.87 7 +306858.50 3990.0 – C57
2021-06-20 14:14:02 S 17 02 57.091 -68 47 45.20 – V C57
2021-06-20 14:14:02 s 1 -161593.51 5 +306429.33 6870.0 – C57
2021-06-20 14:24:02 S 17 02 59.359 -68 47 43.26 – V C57
2021-06-20 14:24:02 s 1 -161833.60 3 +305999.15 8060.0 – C57
2021-06-20 14:34:02 S 17 03 00.938 -68 47 40.74 – V C57
2021-06-20 14:34:02 s 1 -162073.13 8 +305567.94 7560.0 – C57
2021-06-20 14:44:02 S 17 03 02.594 -68 47 40.24 – V C57
2021-06-20 14:44:02 s 1 -162312.11 7 +305135.73 5370.0 – C57
2021-06-20 14:54:02 S 17 03 04.334 -68 47 40.34 – V C57
2021-06-20 14:54:02 s 1 -162550.53 9 +304702.49 1470.0 – C57
2021-06-20 15:04:02 S 17 03 06.242 -68 47 36.82 – V C57
2021-06-20 15:04:02 s 1 -162788.40 2 +304268.23 5860.0 – C57
2021-06-20 15:14:02 S 17 03 08.045 -68 47 35.48 – V C57
2021-06-20 15:14:02 s 1 -163025.70 3 +303832.96 8540.0 – C57
2021-06-20 15:24:02 S 17 03 09.566 -68 47 35.38 – V C57
2021-06-20 15:24:02 s 1 -163262.44 1 +303396.66 9500.0 – C57
2021-06-20 15:34:02 S 17 03 11.573 -68 47 33.79 – V C57
2021-06-20 15:34:02 s 1 -163498.61 4 +302959.35 8730.0 – C57
2021-06-20 15:54:02 S 17 03 14.870 -68 47 32.35 – V C57
2021-06-20 15:54:02 s 1 -163969.25 6 +302081.65 1990.0 – C57
2021-06-20 16:04:02 S 17 03 16.654 -68 47 28.32 – V C57
2021-06-20 16:04:02 s 1 -164203.72 1 +301641.26 6000.0 – C57
2021-06-20 16:14:02 S 17 03 18.490 -68 47 26.99 – V C57
2021-06-20 16:14:02 s 1 -164437.61 2 +301199.85 8270.0 – C57
2021-06-20 16:24:02 S 17 03 20.695 -68 47 27.35 – V C57
2021-06-20 16:24:02 s 1 -164670.92 7 +300757.42 8780.0 – C57
2021-06-20 16:34:02 S 17 03 23.112 -68 47 26.74 – V C57
2021-06-20 16:34:02 s 1 -164903.66 5 +300313.96 7520.0 – C57
2021-06-20 16:44:02 S 17 03 23.758 -68 47 24.58 – V C57
2021-06-20 16:44:02 s 1 -165135.82 3 +299869.47 4500.0 – C57
2021-06-20 16:54:02 S 17 03 25.354 -68 47 24.36 – V C57
2021-06-20 16:54:02 s 1 -165367.39 9 +299423.96 9700.0 – 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)