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
2021-08-01 23:23:59 S 20 35 52.183 +23 02 37.46 V C57
2021-08-01 23:23:59 s 1 -152606.45 3 +322669.43 2960.0 C57
2021-08-01 23:33:59 S 20 35 54.000 +23 03 34.09 V C57
2021-08-01 23:33:59 s 1 -152884.31 1 +322307.02 4380.0 C57
2021-08-01 23:43:59 S 20 35 55.788 +23 04 28.24 V C57
2021-08-01 23:43:59 s 1 -153161.70 3 +321943.61 4240.0 C57
2021-08-01 23:53:59 S 20 35 57.506 +23 05 23.75 V C57
2021-08-01 23:53:59 s 1 -153438.62 6 +321579.22 2540.0 C57
2021-08-02 00:23:59 S 20 36 02.683 +23 08 08.48 V C57
2021-08-02 00:23:59 s 1 -154266.57 0 +320480.08 7980.0 C57
2021-08-02 00:33:59 S 20 36 04.430 +23 09 03.02 V C57
2021-08-02 00:33:59 s 1 -154541.60 3 +320111.72 9960.0 C57
2021-08-02 00:43:59 S 20 36 06.139 +23 09 58.14 V C57
2021-08-02 00:43:59 s 1 -154816.15 9 +319742.36 350.0 C57
2021-08-02 00:53:59 S 20 36 07.862 +23 10 51.17 V C57
2021-08-02 00:53:59 s 1 -155090.23 7 +319372.01 9150.0 C57
2021-08-02 01:03:59 S 20 36 09.619 +23 11 47.15 V C57
2021-08-02 01:03:59 s 1 -155363.83 5 +319000.66 6340.0 C57
2021-08-02 01:13:59 S 20 36 11.326 +23 12 41.36 V C57
2021-08-02 01:13:59 s 1 -155636.95 2 +318628.32 1920.0 C57
2021-08-02 01:33:59 S 20 36 14.839 +23 14 31.67 V C57
2021-08-02 01:33:59 s 1 -156181.73 2 +317880.65 8250.0 C57
2021-08-02 01:53:59 S 20 36 18.274 +23 16 21.36 V C57
2021-08-02 01:53:59 s 1 -156724.56 5 +317128.99 8080.0 C57
2021-08-02 02:03:59 S 20 36 19.968 +23 17 15.65 V C57
2021-08-02 02:03:59 s 1 -156995.24 7 +316751.67 5550.0 C57
2021-08-02 02:13:59 S 20 36 21.821 +23 18 13.00 V C57
2021-08-02 02:13:59 s 1 -157265.43 7 +316373.35 1380.0 C57
2021-08-02 02:20:39 V 20 37 53.80 +24 05 31.0 14.5 V 247
2021-08-02 02:20:39 v 1 273.41730 +30.43483 247
2021-08-02 02:24:37 V 20 37 54.15 +24 05 54.4 14.6 V 247
2021-08-02 02:24:37 v 1 273.41730 +30.43483 247
2021-08-02 02:25:36 V 20 37 54.30 +24 05 59.3 15.1 V 247
2021-08-02 02:25:36 v 1 273.41730 +30.43483 247
2021-08-02 02:26:36 V 20 37 54.43 +24 06 05.0 15.0 V 247
2021-08-02 02:26:36 v 1 273.41730 +30.43483 247
2021-08-02 02:28:35 V 20 37 54.64 +24 06 15.9 15.0 V 247
2021-08-02 02:28:35 v 1 273.41730 +30.43483 247
2021-08-02 02:29:35 V 20 37 54.71 +24 06 20.6 14.9 V 247
2021-08-02 02:29:35 v 1 273.41730 +30.43483 247
2021-08-02 02:42:29 V 20 37 56.16 +24 07 35.2 14.9 V 247
2021-08-02 02:42:29 v 1 273.41730 +30.43483 247
2021-08-02 02:43:59 S 20 36 26.904 +23 20 53.34 V C57
2021-08-02 02:43:59 s 1 -158073.03 9 +315232.39 8970.0 C57
2021-08-02 02:45:28 V 20 37 56.51 +24 07 50.4 14.9 V 247
2021-08-02 02:45:28 v 1 273.41730 +30.43483 247
2021-08-02 02:46:27 V 20 37 56.56 +24 07 56.1 14.8 V 247
2021-08-02 02:46:27 v 1 273.41730 +30.43483 247
2021-08-02 02:48:26 V 20 37 56.80 +24 08 07.3 14.6 V 247
2021-08-02 02:48:26 v 1 273.41730 +30.43483 247
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)