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
2021-05-31 00:04:03 S 16 17 25.267 -67 38 25.55 – V C57
2021-05-31 00:04:03 s 1 +122454.60 0 +335275.97 6830.0 – C57
2021-05-31 00:44:03 S 16 17 28.351 -67 38 50.71 – V C57
2021-05-31 00:44:03 s 1 +121265.51 2 +336730.54 680.0 – C57
2021-05-31 02:54:03 S 16 17 37.138 -67 39 45.40 – V C57
2021-05-31 02:54:03 s 1 +117359.36 9 +341343.59 2490.0 – C57
2021-05-31 03:14:03 S 16 17 38.174 -67 39 57.20 – V C57
2021-05-31 03:14:03 s 1 +116752.93 1 +342037.86 4240.0 – C57
2021-05-31 04:04:03 S 16 17 41.590 -67 40 15.06 – V C57
2021-05-31 04:04:03 s 1 +115230.61 1 +343755.63 540.0 – C57
2021-05-31 04:14:03 S 16 17 41.743 -67 40 16.64 – V C57
2021-05-31 04:14:03 s 1 +114925.09 2 +344096.12 1590.0 – C57
2021-05-31 04:24:03 S 16 17 42.550 -67 40 22.01 – V C57
2021-05-31 04:24:03 s 1 +114619.22 6 +344435.59 1910.0 – C57
2021-05-31 04:44:03 S 16 17 43.637 -67 40 28.16 – V C57
2021-05-31 04:44:03 s 1 +114006.45 6 +345111.49 370.0 – C57
2021-05-31 05:04:03 S 16 17 45.264 -67 40 37.74 – V C57
2021-05-31 05:04:03 s 1 +113392.31 2 +345783.32 5960.0 – C57
2021-05-31 05:14:03 S 16 17 46.116 -67 40 49.48 – V C57
2021-05-31 05:14:03 s 1 +113084.73 0 +346117.71 2680.0 – C57
2021-05-31 05:24:03 S 16 17 46.908 -67 40 51.06 – V C57
2021-05-31 05:24:03 s 1 +112776.80 8 +346451.09 8700.0 – C57
2021-05-31 05:34:03 S 16 17 47.890 -67 40 53.65 – V C57
2021-05-31 05:34:03 s 1 +112468.54 9 +346783.45 4020.0 – C57
2021-05-31 06:34:03 S 16 17 52.522 -67 41 15.65 – V C57
2021-05-31 06:34:03 s 1 +110611.99 8 +348756.43 1340.0 – C57
2021-05-31 06:54:03 S 16 17 52.109 -67 41 29.94 – V C57
2021-05-31 06:54:03 s 1 +109990.51 6 +349406.02 1640.0 – C57
2021-05-31 07:14:03 S 16 17 53.858 -67 41 36.10 – V C57
2021-05-31 07:14:03 s 1 +109367.73 9 +350051.60 9260.0 – C57
2021-05-31 07:44:03 S 16 17 55.212 -67 41 45.71 – V C57
2021-05-31 07:44:03 s 1 +108431.16 9 +351012.43 710.0 – C57
2021-05-31 08:04:03 S 16 17 57.206 -67 41 57.16 – V C57
2021-05-31 08:04:03 s 1 +107805.20 3 +351647.97 1730.0 – C57
2021-05-31 08:14:03 S 16 17 58.774 -67 42 03.71 – V C57
2021-05-31 08:14:03 s 1 +107491.74 8 +351964.24 6270.0 – C57
2021-05-31 08:34:03 S 16 17 59.710 -67 42 08.35 – V C57
2021-05-31 08:34:03 s 1 +106863.90 2 +352593.79 3420.0 – C57
2021-05-31 08:54:03 S 16 18 01.073 -67 42 19.55 – V C57
2021-05-31 08:54:03 s 1 +106234.81 8 +353219.35 8020.0 – C57
2021-05-31 09:04:03 S 16 18 02.009 -67 42 27.14 – V C57
2021-05-31 09:04:03 s 1 +105919.81 5 +353530.63 9380.0 – C57
2021-05-31 10:34:03 S 16 18 06.869 -67 43 05.77 – V C57
2021-05-31 10:34:03 s 1 +103071.20 5 +356287.48 3740.0 – C57
2021-05-31 10:44:03 S 16 18 08.578 -67 43 09.26 – V C57
2021-05-31 10:44:03 s 1 +102753.20 8 +356588.84 8970.0 – C57
2021-05-31 11:14:03 S 16 18 10.214 -67 43 26.72 – V C57
2021-05-31 11:14:03 s 1 +101797.47 4 +357487.01 1120.0 – C57
2021-05-31 11:24:03 S 16 18 10.385 -67 43 21.07 – V C57
2021-05-31 11:24:03 s 1 +101478.31 9 +357784.43 3990.0 – 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)