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
2021-08-02 23:19:05 v 1 016.33576 +48.20435 247
2021-08-02 23:20:05 V 20 40 24.85 +25 56 59.1 15.3 V 247
2021-08-02 23:20:05 v 1 016.33576 +48.20435 247
2021-08-02 23:23:59 S 20 39 59.758 +25 10 44.87 V C57
2021-08-02 23:23:59 s 1 -186901.32 7 +260016.87 1220.0 C57
2021-08-02 23:25:15 V 20 40 25.33 +25 57 27.0 15.5 V 247
2021-08-02 23:25:15 v 1 016.33576 +48.20435 247
2021-08-02 23:27:14 V 20 40 25.54 +25 57 35.8 14.8 V 247
2021-08-02 23:27:14 v 1 016.33576 +48.20435 247
2021-08-02 23:33:59 S 20 40 01.474 +25 11 39.98 V C57
2021-08-02 23:33:59 s 1 -187091.78 0 +259506.02 4620.0 C57
2021-08-02 23:43:59 S 20 40 03.118 +25 12 28.98 V C57
2021-08-02 23:43:59 s 1 -187281.45 5 +258994.10 5480.0 C57
2021-08-02 23:53:59 S 20 40 04.836 +25 13 21.32 V C57
2021-08-02 23:53:59 s 1 -187470.34 9 +258481.10 3790.0 C57
2021-08-03 00:03:59 S 20 40 06.538 +25 14 13.34 V C57
2021-08-03 00:03:59 s 1 -187658.45 9 +257967.03 9540.0 C57
2021-08-03 00:13:59 S 20 40 08.254 +25 15 05.44 V C57
2021-08-03 00:13:59 s 1 -187845.78 1 +257451.87 2730.0 C57
2021-08-03 00:23:59 S 20 40 09.938 +25 15 56.66 V C57
2021-08-03 00:23:59 s 1 -188032.31 4 +256935.63 3340.0 C57
2021-08-03 00:53:59 S 20 40 14.957 +25 18 30.10 V C57
2021-08-03 00:53:59 s 1 -188587.14 2 +255380.44 9620.0 C57
2021-08-03 01:03:59 S 20 40 16.570 +25 19 27.08 V C57
2021-08-03 01:03:59 s 1 -188770.48 5 +254859.87 9830.0 C57
2021-08-03 01:23:59 S 20 40 20.119 +25 21 08.10 V C57
2021-08-03 01:23:59 s 1 -189134.75 3 +253815.49 2380.0 C57
2021-08-03 01:43:59 S 20 40 23.448 +25 22 49.51 V C57
2021-08-03 01:43:59 s 1 -189495.77 8 +252766.78 4370.0 C57
2021-08-03 01:53:59 S 20 40 25.193 +25 23 42.04 V C57
2021-08-03 01:53:59 s 1 -189675.06 7 +252240.79 1370.0 C57
2021-08-03 02:03:59 S 20 40 26.945 +25 24 33.05 V C57
2021-08-03 02:03:59 s 1 -189853.53 6 +251713.71 5710.0 C57
2021-08-03 02:13:59 S 20 40 28.574 +25 25 24.89 V C57
2021-08-03 02:13:59 s 1 -190031.18 2 +251185.55 7370.0 C57
2021-08-03 02:23:59 S 20 40 30.295 +25 26 16.51 V C57
2021-08-03 02:23:59 s 1 -190208.00 1 +250656.30 6330.0 C57
2021-08-03 02:33:59 S 20 40 31.949 +25 27 07.78 V C57
2021-08-03 02:33:59 s 1 -190383.99 2 +250125.96 2600.0 C57
2021-08-03 02:43:59 S 20 40 33.622 +25 27 58.61 V C57
2021-08-03 02:43:59 s 1 -190559.15 0 +249594.52 6160.0 C57
2021-08-03 02:53:59 S 20 40 35.299 +25 28 51.06 V C57
2021-08-03 02:53:59 s 1 -190733.47 2 +249062.00 6990.0 C57
2021-08-03 03:03:48 C 20 40 56.40 +26 16 00.5 V V93
2021-08-03 03:03:59 S 20 40 37.025 +25 29 42.65 V C57
2021-08-03 03:03:59 s 1 -190906.95 7 +248528.39 5100.0 C57
2021-08-03 03:23:59 S 20 40 40.346 +25 31 25.57 V C57
2021-08-03 03:23:59 s 1 -191251.39 6 +247457.89 3090.0 C57
2021-08-03 03:33:59 S 20 40 42.113 +25 32 16.37 V C57
2021-08-03 03:33:59 s 1 -191422.34 6 +246920.99 2960.0 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)