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
2021-08-05 05:01:54 V 20 46 43.57 +30 05 12.2 15.1 V 247
2021-08-05 05:01:54 v 1 237.89526 +47.56314 247
2021-08-05 05:03:53 V 20 46 43.84 +30 05 20.9 14.8 V 247
2021-08-05 05:03:53 v 1 237.89526 +47.56314 247
2021-08-05 05:03:59 S 20 48 35.450 +29 37 56.06 V C57
2021-08-05 05:03:59 s 1 -182078.88 6 +37029.880 620.0 C57
2021-08-05 05:05:52 V 20 46 43.82 +30 05 29.0 14.9 V 247
2021-08-05 05:05:52 v 1 237.89526 +47.56314 247
2021-08-05 05:07:51 V 20 46 44.09 +30 05 36.9 15.0 V 247
2021-08-05 05:07:51 v 1 237.89526 +47.56314 247
2021-08-05 05:08:51 V 20 46 44.16 +30 05 40.8 14.8 V 247
2021-08-05 05:08:51 v 1 237.89526 +47.56314 247
2021-08-05 05:09:50 V 20 46 44.22 +30 05 48.2 14.7 V 247
2021-08-05 05:09:50 v 1 237.89526 +47.56314 247
2021-08-05 05:10:50 V 20 46 44.41 +30 05 49.3 14.6 V 247
2021-08-05 05:10:50 v 1 237.89526 +47.56314 247
2021-08-05 05:11:49 V 20 46 44.43 +30 05 53.6 14.6 V 247
2021-08-05 05:11:49 v 1 237.89526 +47.56314 247
2021-08-05 05:12:49 V 20 46 44.52 +30 05 57.9 14.6 V 247
2021-08-05 05:12:49 v 1 237.89526 +47.56314 247
2021-08-05 05:13:59 S 20 48 36.876 +29 38 44.84 V C57
2021-08-05 05:13:59 s 1 -181720.46 2 +36162.845 3890.0 C57
2021-08-05 05:23:59 S 20 48 38.323 +29 39 33.88 V C57
2021-08-05 05:23:59 s 1 -181358.46 7 +35295.105 5830.0 C57
2021-08-05 05:33:59 S 20 48 39.696 +29 40 23.30 V C57
2021-08-05 05:33:59 s 1 -180992.87 9 +34426.671 6350.0 C57
2021-08-05 05:43:59 S 20 48 41.059 +29 41 11.98 V C57
2021-08-05 05:43:59 s 1 -180623.67 5 +33557.555 5400.0 C57
2021-08-05 05:53:59 S 20 48 42.446 +29 42 00.94 V C57
2021-08-05 05:53:59 s 1 -180250.83 2 +32687.768 2900.0 C57
2021-08-05 06:03:59 S 20 48 43.680 +29 42 49.86 V C57
2021-08-05 06:03:59 s 1 -179874.32 7 +31817.322 8770.0 C57
2021-08-05 06:06:48 V 20 46 46.53 +30 10 09.7 14.7 V 247
2021-08-05 06:06:48 v 1 276.64224 +33.90559 247
2021-08-05 06:13:59 S 20 48 45.036 +29 43 37.34 V C57
2021-08-05 06:13:59 s 1 -179494.13 7 +30946.230 2950.0 C57
2021-08-05 06:23:59 S 20 48 46.668 +29 44 29.11 V C57
2021-08-05 06:23:59 s 1 -179110.23 8 +30074.504 5370.0 C57
2021-08-05 06:33:59 S 20 48 48.000 +29 45 17.78 V C57
2021-08-05 06:33:59 s 1 -178722.60 8 +29202.157 5940.0 C57
2021-08-05 06:43:59 S 20 48 49.387 +29 46 06.42 V C57
2021-08-05 06:43:59 s 1 -178331.22 1 +28329.201 4600.0 C57
2021-08-05 06:53:59 S 20 48 50.755 +29 46 56.14 V C57
2021-08-05 06:53:59 s 1 -177936.05 5 +27455.650 1270.0 C57
2021-08-05 07:03:59 S 20 48 52.111 +29 47 44.27 V C57
2021-08-05 07:03:59 s 1 -177537.08 5 +26581.517 5870.0 C57
2021-08-05 07:13:59 S 20 48 53.566 +29 48 33.55 V C57
2021-08-05 07:13:59 s 1 -177134.28 6 +25706.816 8340.0 C57
2021-08-05 07:23:59 S 20 48 54.895 +29 49 22.51 V C57
2021-08-05 07:23:59 s 1 -176727.63 5 +24831.561 8580.0 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)