IAA RAS IAA Minor Planet Database

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 15:43:59 S 20 49 59.299 +30 30 31.39 – V C57
2021-08-05 15:43:59 s 1 -150883.34 7 -19228.101 2950.0 – C57
2021-08-05 15:53:59 S 20 50 00.446 +30 31 19.74 – V C57
2021-08-05 15:53:59 s 1 -150243.20 4 -20104.540 5580.0 – C57
2021-08-05 16:03:59 S 20 50 01.668 +30 32 08.70 – V C57
2021-08-05 16:03:59 s 1 -149597.67 2 -20980.255 1260.0 – C57
2021-08-05 16:43:59 S 20 50 06.286 +30 35 27.53 – V C57
2021-08-05 16:43:59 s 1 -146960.97 4 -24475.079 2340.0 – C57
2021-08-05 16:53:59 S 20 50 07.474 +30 36 18.50 – V C57
2021-08-05 16:53:59 s 1 -146287.98 7 -25346.569 1670.0 – C57
2021-08-05 17:03:59 S 20 50 08.609 +30 37 07.10 – V C57
2021-08-05 17:03:59 s 1 -145609.40 5 -26217.087 3430.0 – C57
2021-08-05 17:33:59 S 20 50 12.058 +30 39 37.76 – V C57
2021-08-05 17:33:59 s 1 -143539.74 6 -28822.364 2140.0 – C57
2021-08-05 17:43:59 S 20 50 13.195 +30 40 27.41 – V C57
2021-08-05 17:43:59 s 1 -142838.44 0 -29688.545 2500.0 – C57
2021-08-05 17:53:59 S 20 50 14.314 +30 41 17.41 – V C57
2021-08-05 17:53:59 s 1 -142131.36 6 -30553.524 4760.0 – C57
2021-08-05 18:03:59 S 20 50 15.420 +30 42 06.48 – V C57
2021-08-05 18:03:59 s 1 -141418.48 9 -31417.254 8800.0 – C57
2021-08-05 18:13:59 S 20 50 16.589 +30 42 56.63 – V C57
2021-08-05 18:13:59 s 1 -140699.77 5 -32279.685 4520.0 – C57
2021-08-05 18:23:59 S 20 50 17.606 +30 43 48.07 – V C57
2021-08-05 18:23:59 s 1 -139975.18 8 -33140.766 1820.0 – C57
2021-08-05 18:33:59 S 20 50 18.847 +30 44 38.98 – V C57
2021-08-05 18:33:59 s 1 -139244.69 3 -34000.447 570.0 – C57
2021-08-05 18:53:59 S 20 50 20.873 +30 46 14.30 – V C57
2021-08-05 18:53:59 s 1 -137765.84 1 -35715.395 2070.0 – C57
2021-08-05 19:03:59 S 20 50 22.020 +30 47 06.29 – V C57
2021-08-05 19:03:59 s 1 -137017.41 4 -36570.556 4600.0 – C57
2021-08-05 19:13:59 S 20 50 23.040 +30 47 56.94 – V C57
2021-08-05 19:13:59 s 1 -136262.94 0 -37424.101 8180.0 – C57
2021-08-05 19:23:59 S 20 50 24.125 +30 48 44.93 – V C57
2021-08-05 19:23:59 s 1 -135502.38 5 -38275.974 2690.0 – C57
2021-08-05 19:33:59 S 20 50 25.267 +30 49 37.02 – V C57
2021-08-05 19:33:59 s 1 -134735.71 2 -39126.117 8050.0 – C57
2021-08-05 19:43:59 S 20 50 26.338 +30 50 26.48 – V C57
2021-08-05 19:43:59 s 1 -133962.88 9 -39974.473 4130.0 – C57
2021-08-05 19:53:59 S 20 50 27.406 +30 51 16.88 – V C57
2021-08-05 19:53:59 s 1 -133183.88 0 -40820.981 850.0 – C57
2021-08-05 20:03:59 S 20 50 28.438 +30 52 04.66 – V C57
2021-08-05 20:03:59 s 1 -132398.65 1 -41665.582 8100.0 – C57
2021-08-05 20:13:59 S 20 50 29.455 +30 52 54.98 – V C57
2021-08-05 20:13:59 s 1 -131607.16 8 -42508.212 5770.0 – C57
2021-08-05 20:23:59 S 20 50 30.538 +30 53 40.60 – V C57
2021-08-05 20:23:59 s 1 -130809.39 7 -43348.810 3760.0 – C57
2021-08-05 21:13:59 S 20 50 35.530 +30 57 59.44 – V C57
2021-08-05 21:13:59 s 1 -126725.03 4 -47519.034 5050.0 – C57
2021-08-05 21:23:59 S 20 50 36.605 +30 58 47.64 – V C57
2021-08-05 21:23:59 s 1 -125888.82 7 -48346.053 2890.0 – 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)