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
2021-06-02 01:51:29 C 16 18 42.936 -68 29 30.56 V W85
2021-06-02 01:55:22 C 16 18 43.016 -68 29 32.63 V W85
2021-06-02 01:59:15 C 16 18 43.085 -68 29 34.70 V W85
2021-06-02 02:05:04 C 16 18 43.209 -68 29 37.83 V W85
2021-06-02 02:24:03 S 16 20 52.586 -68 01 32.09 V C57
2021-06-02 02:24:03 s 1 +21352.671 0 +401535.47 6450.0 C57
2021-06-02 02:54:03 S 16 20 55.673 -68 01 47.28 V C57
2021-06-02 02:54:03 s 1 +20282.939 0 +401774.75 6400.0 C57
2021-06-02 03:44:03 S 16 20 58.786 -68 02 14.68 V C57
2021-06-02 03:44:03 s 1 +18499.090 0 +402155.98 6100.0 C57
2021-06-02 03:51:27 C 16 18 45.113 -68 30 31.08 V W86
2021-06-02 03:54:03 S 16 20 59.446 -68 02 15.97 V C57
2021-06-02 03:54:03 s 1 +18142.183 0 +402229.59 5990.0 C57
2021-06-02 04:05:01 C 16 18 45.337 -68 30 37.41 V W86
2021-06-02 04:14:03 S 16 21 00.526 -68 02 26.02 V C57
2021-06-02 04:14:03 s 1 +17428.239 0 +402374.18 5690.0 C57
2021-06-02 04:54:03 S 16 21 04.392 -68 02 45.02 V C57
2021-06-02 04:54:03 s 1 +15999.850 0 +402652.85 4760.0 C57
2021-06-02 05:04:03 S 16 21 04.344 -68 02 50.39 V C57
2021-06-02 05:04:03 s 1 +15642.653 0 +402720.32 4450.0 C57
2021-06-02 05:44:03 S 16 21 07.205 -68 03 10.84 V C57
2021-06-02 05:44:03 s 1 +14213.492 0 +402981.47 2800.0 C57
2021-06-02 05:51:38 C 16 18 47.154 -68 31 24.59 V W86
2021-06-02 05:54:03 S 16 21 07.817 -68 03 18.90 V C57
2021-06-02 05:54:03 s 1 +13856.112 0 +403044.57 2280.0 C57
2021-06-02 06:04:03 S 16 21 08.434 -68 03 23.29 V C57
2021-06-02 06:04:03 s 1 +13498.698 0 +403106.79 1710.0 C57
2021-06-02 06:05:13 C 16 18 47.408 -68 31 30.23 V W86
2021-06-02 06:14:03 S 16 21 09.086 -68 03 27.61 V C57
2021-06-02 06:14:03 s 1 +13141.251 0 +403168.14 1090.0 C57
2021-06-02 06:24:03 S 16 21 10.010 -68 03 31.07 V C57
2021-06-02 06:24:03 s 1 +12783.771 0 +403228.61 420.0 C57
2021-06-02 07:51:41 C 16 18 49.746 -68 32 11.64 V W86
2021-06-02 08:05:15 C 16 18 50.085 -68 32 16.60 V W86
2021-06-02 09:54:03 S 16 21 24.682 -68 05 18.49 V C57
2021-06-02 10:14:03 S 16 21 26.448 -68 05 26.02 V C57
2021-06-02 10:24:03 S 16 21 26.849 -68 05 28.97 V C57
2021-06-02 12:04:03 S 16 21 33.667 -68 06 19.19 V C57
2021-06-02 12:14:03 S 16 21 34.426 -68 06 23.44 V C57
2021-06-02 12:34:03 S 16 21 36.286 -68 06 35.24 V C57
2021-06-02 12:54:03 S 16 21 37.591 -68 06 43.52 V C57
2021-06-02 13:14:03 S 16 21 38.830 -68 06 51.26 V C57
2021-06-02 14:04:03 S 16 21 42.744 -68 07 17.26 V C57
2021-06-02 14:44:03 S 16 21 45.749 -68 07 40.80 V C57
2021-06-02 15:24:03 S 16 21 47.669 -68 08 00.10 V C57
2021-06-02 15:54:03 S 16 21 49.776 -68 08 13.92 V C57
2021-06-02 18:14:03 S 16 21 59.755 -68 09 25.67 V C57
2021-06-02 18:14:03 s 1 -12631.662 0 +405296.44 3900.0 C57
2021-06-02 18:34:03 S 16 22 01.207 -68 09 38.59 V C57
2021-06-02 18:34:03 s 1 -13347.166 0 +405291.34 4190.0 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)