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
2021-08-03 23:33:59 S 20 44 01.901 +27 13 12.90 – V C57
2021-08-03 23:33:59 s 1 -204672.40 1 +174340.18 6170.0 – C57
2021-08-03 23:43:59 S 20 44 03.564 +27 14 01.79 – V C57
2021-08-03 23:43:59 s 1 -204711.39 8 +173665.70 9400.0 – C57
2021-08-03 23:53:59 S 20 44 05.184 +27 14 52.91 – V C57
2021-08-03 23:53:59 s 1 -204749.00 1 +172990.06 8140.0 – C57
2021-08-04 01:03:59 S 20 44 16.608 +27 20 39.70 – V C57
2021-08-04 01:03:59 s 1 -204972.67 5 +168227.57 2070.0 – C57
2021-08-04 01:13:59 S 20 44 18.252 +27 21 29.12 – V C57
2021-08-04 01:13:59 s 1 -204998.90 1 +167542.51 4210.0 – C57
2021-08-04 01:23:59 S 20 44 19.846 +27 22 18.52 – V C57
2021-08-04 01:23:59 s 1 -205023.67 7 +166856.27 1680.0 – C57
2021-08-04 01:43:59 S 20 44 23.066 +27 23 56.87 – V C57
2021-08-04 01:43:59 s 1 -205068.84 8 +165480.24 2520.0 – C57
2021-08-04 01:53:59 S 20 44 24.734 +27 24 46.94 – V C57
2021-08-04 01:53:59 s 1 -205089.23 0 +164790.46 5860.0 – C57
2021-08-04 02:03:59 S 20 44 26.390 +27 25 37.34 – V C57
2021-08-04 02:03:59 s 1 -205108.13 5 +164099.50 4450.0 – C57
2021-08-04 02:13:59 S 20 44 28.058 +27 26 26.70 – V C57
2021-08-04 02:13:59 s 1 -205125.55 5 +163407.36 8260.0 – C57
2021-08-04 02:23:59 S 20 44 29.590 +27 27 15.88 – V C57
2021-08-04 02:23:59 s 1 -205141.48 4 +162714.03 7280.0 – C57
2021-08-04 02:33:59 S 20 44 31.243 +27 28 05.41 – V C57
2021-08-04 02:33:59 s 1 -205155.91 5 +162019.53 1480.0 – C57
2021-08-04 02:43:59 S 20 44 32.798 +27 28 54.12 – V C57
2021-08-04 02:43:59 s 1 -205168.84 1 +161323.85 840.0 – C57
2021-08-04 03:23:59 S 20 44 39.403 +27 32 12.48 – V C57
2021-08-04 03:23:59 s 1 -205205.35 4 +158529.29 9460.0 – C57
2021-08-04 03:33:59 S 20 44 40.889 +27 33 00.76 – V C57
2021-08-04 03:33:59 s 1 -205210.65 0 +157827.70 4300.0 – C57
2021-08-04 03:43:59 S 20 44 42.535 +27 33 51.01 – V C57
2021-08-04 03:43:59 s 1 -205214.39 8 +157124.92 4160.0 – C57
2021-08-04 03:53:59 S 20 44 44.179 +27 34 40.15 – V C57
2021-08-04 03:53:59 s 1 -205216.59 3 +156420.96 9030.0 – C57
2021-08-04 04:03:59 S 20 44 45.792 +27 35 29.47 – V C57
2021-08-04 04:03:59 s 1 -205217.22 5 +155715.82 8880.0 – C57
2021-08-04 04:13:59 S 20 44 47.400 +27 36 18.43 – V C57
2021-08-04 04:13:59 s 1 -205216.28 8 +155009.49 3690.0 – C57
2021-08-04 04:23:59 S 20 44 49.030 +27 37 08.58 – V C57
2021-08-04 04:23:59 s 1 -205213.77 5 +154301.98 3440.0 – C57
2021-08-04 04:53:59 S 20 44 53.863 +27 39 35.50 – V C57
2021-08-04 04:53:59 s 1 -205196.70 3 +152172.35 2050.0 – C57
2021-08-04 05:03:59 S 20 44 55.469 +27 40 25.32 – V C57
2021-08-04 05:03:59 s 1 -205187.81 0 +151460.11 1300.0 – C57
2021-08-04 05:13:59 S 20 44 57.029 +27 41 14.32 – V C57
2021-08-04 05:13:59 s 1 -205177.30 3 +150746.68 5370.0 – C57
2021-08-04 05:23:59 S 20 44 58.678 +27 42 03.31 – V C57
2021-08-04 05:23:59 s 1 -205165.17 5 +150032.07 4230.0 – C57
2021-08-04 05:33:59 S 20 45 00.269 +27 42 52.99 – V C57
2021-08-04 05:33:59 s 1 -205151.41 7 +149316.28 7850.0 – 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)