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
2021-06-16 00:34:02 S 16 43 56.275 -69 02 04.13 – V C57
2021-06-16 00:34:02 s 1 +55055.960 0 +390451.17 720.0 – C57
2021-06-16 00:44:02 S 16 43 57.163 -69 02 02.83 – V C57
2021-06-16 00:44:02 s 1 +54706.168 0 +390614.64 3450.0 – C57
2021-06-16 00:54:02 S 16 43 59.239 -69 02 01.61 – V C57
2021-06-16 00:54:02 s 1 +54356.251 0 +390777.19 6000.0 – C57
2021-06-16 01:04:02 S 16 44 00.782 -69 01 59.12 – V C57
2021-06-16 01:04:02 s 1 +54006.211 0 +390938.83 8380.0 – C57
2021-06-16 01:14:02 S 16 44 02.138 -69 01 59.30 – V C57
2021-06-16 01:14:02 s 1 +53656.048 0 +391099.56 590.0 – C57
2021-06-16 01:34:02 S 16 44 05.998 -69 01 55.42 – V C57
2021-06-16 01:34:02 s 1 +52955.359 0 +391418.27 4520.0 – C57
2021-06-16 02:04:02 S 16 44 11.282 -69 01 50.56 – V C57
2021-06-16 02:04:02 s 1 +51903.430 0 +391889.50 9200.0 – C57
2021-06-16 02:14:02 S 16 44 12.223 -69 01 48.07 – V C57
2021-06-16 02:14:02 s 1 +51552.553 0 +392044.75 450.0 – C57
2021-06-16 02:24:02 S 16 44 13.745 -69 01 47.17 – V C57
2021-06-16 02:24:02 s 1 +51201.559 0 +392199.09 1550.0 – C57
2021-06-16 02:34:02 S 16 44 15.674 -69 01 46.09 – V C57
2021-06-16 02:34:02 s 1 +50850.450 0 +392352.53 2490.0 – C57
2021-06-16 02:44:02 S 16 44 17.134 -69 01 44.90 – V C57
2021-06-16 02:44:02 s 1 +50499.227 0 +392505.05 3290.0 – C57
2021-06-16 02:54:02 S 16 44 17.270 -69 01 43.25 – V C57
2021-06-16 02:54:02 s 1 +50147.891 0 +392656.66 3950.0 – C57
2021-06-16 03:04:02 S 16 44 20.587 -69 01 43.97 – V C57
2021-06-16 03:04:02 s 1 +49796.443 0 +392807.36 4460.0 – C57
2021-06-16 03:14:02 S 16 44 20.748 -69 01 41.52 – V C57
2021-06-16 03:14:02 s 1 +49444.883 0 +392957.16 4830.0 – C57
2021-06-16 03:24:02 S 16 44 23.580 -69 01 36.59 – V C57
2021-06-16 03:24:02 s 1 +49093.214 0 +393106.04 5060.0 – C57
2021-06-16 04:34:02 S 16 44 34.848 -69 01 27.98 – V C57
2021-06-16 04:34:02 s 1 +46628.514 0 +394122.83 3010.0 – C57
2021-06-16 04:54:02 S 16 44 38.446 -69 01 27.19 – V C57
2021-06-16 04:54:02 s 1 +45923.373 0 +394405.19 1320.0 – C57
2021-06-16 05:04:02 S 16 44 40.339 -69 01 24.74 – V C57
2021-06-16 05:04:02 s 1 +45570.650 0 +394545.01 290.0 – C57
2021-06-16 05:14:02 S 16 44 41.539 -69 01 25.39 – V C57
2021-06-16 05:14:02 s 1 +45217.828 0 +394683.93 9160.0 – C57
2021-06-16 05:24:02 S 16 44 43.054 -69 01 24.13 – V C57
2021-06-16 05:24:02 s 1 +44864.906 0 +394821.94 7920.0 – C57
2021-06-16 05:34:02 S 16 44 45.115 -69 01 19.88 – V C57
2021-06-16 05:34:02 s 1 +44511.885 0 +394959.05 6570.0 – C57
2021-06-16 05:44:02 S 16 44 46.387 -69 01 17.54 – V C57
2021-06-16 05:44:02 s 1 +44158.767 0 +395095.25 5110.0 – C57
2021-06-16 05:54:02 S 16 44 47.870 -69 01 19.27 – V C57
2021-06-16 05:54:02 s 1 +43805.552 0 +395230.55 3550.0 – C57
2021-06-16 06:04:02 S 16 44 49.802 -69 01 17.65 – V C57
2021-06-16 06:04:02 s 1 +43452.242 0 +395364.95 1890.0 – C57
2021-06-16 06:14:02 S 16 44 51.559 -69 01 16.86 – V C57
2021-06-16 06:14:02 s 1 +43098.837 0 +395498.45 130.0 – 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)