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
2021-06-22 18:14:02 S 17 11 36.708 -68 42 12.20 – V C57
2021-06-22 18:14:02 s 1 -194363.85 4 +117943.44 6820.0 – C57
2021-06-22 18:24:02 S 17 11 38.069 -68 42 10.62 – V C57
2021-06-22 18:24:02 s 1 -194254.54 2 +117147.18 7660.0 – C57
2021-06-22 18:34:02 S 17 11 39.473 -68 42 10.48 – V C57
2021-06-22 18:34:02 s 1 -194143.04 4 +116349.61 2110.0 – C57
2021-06-22 18:44:02 S 17 11 40.829 -68 42 09.54 – V C57
2021-06-22 18:44:02 s 1 -194029.34 8 +115550.74 130.0 – C57
2021-06-22 18:54:02 S 17 11 42.442 -68 42 08.82 – V C57
2021-06-22 18:54:02 s 1 -193913.44 2 +114750.56 1670.0 – C57
2021-06-22 19:04:02 S 17 11 43.742 -68 42 07.56 – V C57
2021-06-22 19:04:02 s 1 -193795.31 1 +113949.08 6690.0 – C57
2021-06-22 19:14:02 S 17 11 45.012 -68 42 06.70 – V C57
2021-06-22 19:14:02 s 1 -193674.94 3 +113146.29 5170.0 – C57
2021-06-22 19:24:02 S 17 11 46.620 -68 42 04.82 – V C57
2021-06-22 19:24:02 s 1 -193552.32 6 +112342.21 7070.0 – C57
2021-06-22 19:34:02 S 17 11 48.146 -68 42 05.08 – V C57
2021-06-22 19:34:02 s 1 -193427.44 4 +111536.82 2340.0 – C57
2021-06-22 19:44:02 S 17 11 49.654 -68 42 03.28 – V C57
2021-06-22 19:44:02 s 1 -193300.28 6 +110730.13 950.0 – C57
2021-06-22 19:54:02 S 17 11 50.719 -68 42 01.19 – V C57
2021-06-22 19:54:02 s 1 -193170.83 6 +109922.14 2850.0 – C57
2021-06-22 20:04:02 S 17 11 52.366 -68 42 00.54 – V C57
2021-06-22 20:04:02 s 1 -193039.08 3 +109112.85 8020.0 – C57
2021-06-22 20:14:02 S 17 11 53.609 -68 41 59.60 – V C57
2021-06-22 20:14:02 s 1 -192905.01 1 +108302.26 6410.0 – C57
2021-06-22 20:24:02 S 17 11 55.258 -68 41 58.88 – V C57
2021-06-22 20:24:02 s 1 -192768.60 7 +107490.37 7980.0 – C57
2021-06-22 20:34:02 S 17 11 56.220 -68 41 56.62 – V C57
2021-06-22 20:34:02 s 1 -192629.85 7 +106677.19 2690.0 – C57
2021-06-22 20:44:02 S 17 11 57.948 -68 41 56.18 – V C57
2021-06-22 20:44:02 s 1 -192488.74 7 +105862.71 500.0 – C57
2021-06-22 21:14:02 S 17 12 01.106 -68 41 53.30 – V C57
2021-06-22 21:14:02 s 1 -192051.11 0 +103411.51 2140.0 – C57
2021-06-22 21:34:02 S 17 12 04.606 -68 41 54.49 – V C57
2021-06-22 21:34:02 s 1 -191747.28 6 +101770.92 4650.0 – C57
2021-06-22 21:44:02 S 17 12 06.619 -68 41 57.52 – V C57
2021-06-22 21:44:02 s 1 -191591.70 9 +100948.70 200.0 – C57
2021-06-22 21:54:02 S 17 12 06.749 -68 41 49.56 – V C57
2021-06-22 21:54:02 s 1 -191433.67 0 +100125.18 8560.0 – C57
2021-06-22 22:24:02 S 17 12 10.872 -68 41 48.44 – V C57
2021-06-22 22:24:02 s 1 -190944.62 1 +97646.942 80.0 – C57
2021-06-23 03:04:02 S 17 12 48.365 -68 41 22.49 – V C57
2021-06-23 03:04:02 s 1 -185224.32 2 +73969.454 720.0 – C57
2021-06-23 03:44:02 S 17 12 52.819 -68 41 17.05 – V C57
2021-06-23 03:44:02 s 1 -184223.41 9 +70508.470 1110.0 – C57
2021-06-23 04:04:02 S 17 12 55.802 -68 41 15.22 – V C57
2021-06-23 04:04:02 s 1 -183704.43 1 +68770.885 7550.0 – C57
2021-06-23 04:24:02 S 17 12 58.130 -68 41 12.55 – V C57
2021-06-23 04:24:02 s 1 -183172.86 3 +67028.625 7510.0 – 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)