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
2021-07-31 16:53:59 S 20 30 32.388 +20 07 38.06 – V C57
2021-07-31 16:53:59 s 1 -95390.347 0 +372721.18 3800.0 – C57
2021-07-31 17:03:59 S 20 30 34.109 +20 08 37.72 – V C57
2021-07-31 17:03:59 s 1 -95730.372 0 +372533.87 8240.0 – C57
2021-07-31 17:23:59 S 20 30 37.620 +20 10 36.91 – V C57
2021-07-31 17:23:59 s 1 -96409.725 0 +372156.44 4640.0 – C57
2021-07-31 17:33:59 S 20 30 39.408 +20 11 36.67 – V C57
2021-07-31 17:33:59 s 1 -96749.050 0 +371966.33 6590.0 – C57
2021-07-31 17:43:59 S 20 30 41.141 +20 12 36.83 – V C57
2021-07-31 17:43:59 s 1 -97088.140 0 +371775.29 7700.0 – C57
2021-07-31 17:53:59 S 20 30 42.907 +20 13 36.12 – V C57
2021-07-31 17:53:59 s 1 -97426.995 0 +371583.31 7960.0 – C57
2021-07-31 18:03:59 S 20 30 44.666 +20 14 36.56 – V C57
2021-07-31 18:03:59 s 1 -97765.611 0 +371390.40 7380.0 – C57
2021-07-31 18:13:59 S 20 30 46.507 +20 15 36.68 – V C57
2021-07-31 18:13:59 s 1 -98103.990 0 +371196.55 5960.0 – C57
2021-07-31 18:33:59 S 20 30 49.944 +20 17 34.69 – V C57
2021-07-31 18:33:59 s 1 -98780.027 0 +370806.06 540.0 – C57
2021-07-31 18:43:59 S 20 30 51.718 +20 18 34.16 – V C57
2021-07-31 18:43:59 s 1 -99117.685 0 +370609.41 6550.0 – C57
2021-07-31 18:53:59 S 20 30 53.474 +20 19 34.43 – V C57
2021-07-31 18:53:59 s 1 -99455.099 0 +370411.82 1700.0 – C57
2021-07-31 19:03:59 S 20 30 55.236 +20 20 33.40 – V C57
2021-07-31 19:03:59 s 1 -99792.270 0 +370213.31 5980.0 – C57
2021-07-31 19:10:26 C 20 33 46.13 +21 02 30.1 – V 186
2021-07-31 19:18:41 C 20 33 46.95 +21 03 21.2 – V 186
2021-07-31 19:23:59 S 20 30 58.762 +20 22 33.28 – V C57
2021-07-31 19:23:59 s 1 -100465.87 7 +369813.46 1930.0 – C57
2021-07-31 19:33:59 S 20 31 00.492 +20 23 33.25 – V C57
2021-07-31 19:33:59 s 1 -100802.31 1 +369612.14 3600.0 – C57
2021-07-31 19:43:59 S 20 31 02.249 +20 24 31.39 – V C57
2021-07-31 19:43:59 s 1 -101138.49 8 +369409.88 4390.0 – C57
2021-07-31 19:53:59 S 20 31 04.001 +20 25 31.62 – V C57
2021-07-31 19:53:59 s 1 -101474.43 5 +369206.69 4290.0 – C57
2021-07-31 20:03:59 S 20 31 05.774 +20 26 30.66 – V C57
2021-07-31 20:03:59 s 1 -101810.12 2 +369002.56 3320.0 – C57
2021-07-31 20:13:59 S 20 31 07.519 +20 27 30.06 – V C57
2021-07-31 20:13:59 s 1 -102145.55 9 +368797.49 1450.0 – C57
2021-07-31 20:23:59 S 20 31 09.262 +20 28 28.92 – V C57
2021-07-31 20:23:59 s 1 -102480.74 3 +368591.49 8700.0 – C57
2021-07-31 20:33:59 S 20 31 11.021 +20 29 28.68 – V C57
2021-07-31 20:33:59 s 1 -102815.67 4 +368384.55 5050.0 – C57
2021-07-31 20:43:59 S 20 31 12.782 +20 30 27.18 – V C57
2021-07-31 20:43:59 s 1 -103150.35 1 +368176.67 500.0 – C57
2021-07-31 20:53:59 S 20 31 14.525 +20 31 27.23 – V C57
2021-07-31 20:53:59 s 1 -103484.77 3 +367967.86 5050.0 – C57
2021-07-31 21:03:59 S 20 31 16.279 +20 32 26.02 – V C57
2021-07-31 21:03:59 s 1 -103818.93 9 +367758.11 8700.0 – C57
2021-07-31 21:31:08 C 20 34 04.83 +21 16 47.5 – V 089
2021-07-31 21:33:52 C 20 34 01.87 +21 17 13.2 – V 186
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)