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
2021-08-04 21:53:35 C 20 45 52.37 +29 35 14.8 V 089
2021-08-04 21:53:59 S 20 47 32.923 +29 02 53.05 V C57
2021-08-04 21:53:59 s 1 -194405.76 7 +73517.117 9030.0 C57
2021-08-04 21:56:54 C 20 45 52.67 +29 35 29.0 V 089
2021-08-04 22:03:59 S 20 47 34.447 +29 03 42.12 V C57
2021-08-04 22:03:59 s 1 -194181.89 4 +72688.413 420.0 C57
2021-08-04 22:13:59 S 20 47 35.928 +29 04 31.40 V C57
2021-08-04 22:13:59 s 1 -193955.26 9 +71858.685 3050.0 C57
2021-08-04 22:23:59 S 20 47 37.406 +29 05 20.62 V C57
2021-08-04 22:23:59 s 1 -193725.87 4 +71027.938 6840.0 C57
2021-08-04 22:33:59 S 20 47 38.938 +29 06 09.40 V C57
2021-08-04 22:33:59 s 1 -193493.69 5 +70196.176 1750.0 C57
2021-08-04 22:43:59 S 20 47 40.411 +29 06 58.21 V C57
2021-08-04 22:43:59 s 1 -193258.71 4 +69363.405 7740.0 C57
2021-08-04 22:53:59 S 20 47 41.909 +29 07 46.45 V C57
2021-08-04 22:53:59 s 1 -193020.91 6 +68529.629 4750.0 C57
2021-08-04 23:03:59 S 20 47 43.397 +29 08 35.95 V C57
2021-08-04 23:03:59 s 1 -192780.28 4 +67694.854 2720.0 C57
2021-08-04 23:13:59 S 20 47 44.866 +29 09 25.34 V C57
2021-08-04 23:13:59 s 1 -192536.80 0 +66859.084 1610.0 C57
2021-08-04 23:23:59 S 20 47 46.366 +29 10 13.73 V C57
2021-08-04 23:23:59 s 1 -192290.44 9 +66022.324 1360.0 C57
2021-08-04 23:33:59 S 20 47 47.834 +29 11 01.72 V C57
2021-08-04 23:33:59 s 1 -192041.21 4 +65184.581 1920.0 C57
2021-08-04 23:43:59 S 20 47 49.301 +29 11 50.57 V C57
2021-08-04 23:43:59 s 1 -191789.07 6 +64345.859 3240.0 C57
2021-08-04 23:53:59 S 20 47 50.755 +29 12 39.42 V C57
2021-08-04 23:53:59 s 1 -191534.02 0 +63506.165 5260.0 C57
2021-08-05 00:03:59 S 20 47 52.229 +29 13 28.42 V C57
2021-08-05 00:03:59 s 1 -191276.02 7 +62665.503 7920.0 C57
2021-08-05 00:13:59 S 20 47 53.654 +29 14 17.05 V C57
2021-08-05 00:13:59 s 1 -191015.08 1 +61823.880 1180.0 C57
2021-08-05 00:23:59 S 20 47 55.166 +29 15 06.16 V C57
2021-08-05 00:23:59 s 1 -190751.16 3 +60981.301 4980.0 C57
2021-08-05 00:27:34 V 20 46 09.16 +29 46 02.6 13.0 V 247
2021-08-05 00:27:34 v 1 358.77189 +51.76602 247
2021-08-05 00:33:59 S 20 47 56.616 +29 15 54.76 V C57
2021-08-05 00:33:59 s 1 -190484.25 6 +60137.774 9250.0 C57
2021-08-05 00:43:59 S 20 47 58.130 +29 16 44.54 V C57
2021-08-05 00:43:59 s 1 -190214.34 2 +59293.303 3950.0 C57
2021-08-05 00:44:31 V 20 46 10.80 +29 47 14.1 13.1 V 247
2021-08-05 00:44:31 v 1 358.77189 +51.76602 247
2021-08-05 00:45:30 V 20 46 11.00 +29 47 18.9 12.8 V 247
2021-08-05 00:45:30 v 1 358.77189 +51.76602 247
2021-08-05 00:46:30 V 20 46 11.07 +29 47 22.9 12.8 V 247
2021-08-05 00:46:30 v 1 358.77189 +51.76602 247
2021-08-05 00:48:29 V 20 46 11.26 +29 47 31.0 12.8 V 247
2021-08-05 00:48:29 v 1 358.77189 +51.76602 247
2021-08-05 00:53:59 S 20 47 59.597 +29 17 33.11 V C57
2021-08-05 00:53:59 s 1 -189941.40 2 +58447.895 9020.0 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)