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 07:53:59 S 20 41 25.963 +25 54 28.51 – V C57
2021-08-03 07:53:59 s 1 -195558.53 1 +232575.54 6750.0 – C57
2021-08-03 08:33:59 S 20 41 32.642 +25 57 51.30 – V C57
2021-08-03 08:33:59 s 1 -196140.00 3 +230302.06 3840.0 – C57
2021-08-03 08:43:59 S 20 41 34.334 +25 58 42.42 – V C57
2021-08-03 08:43:59 s 1 -196282.99 3 +229730.90 2900.0 – C57
2021-08-03 08:53:59 S 20 41 36.082 +25 59 32.71 – V C57
2021-08-03 08:53:59 s 1 -196425.02 4 +229158.63 8850.0 – C57
2021-08-03 09:03:59 S 20 41 37.733 +26 00 24.05 – V C57
2021-08-03 09:03:59 s 1 -196566.09 2 +228585.24 1680.0 – C57
2021-08-03 09:13:59 S 20 41 39.322 +26 01 14.48 – V C57
2021-08-03 09:13:59 s 1 -196706.19 5 +228010.72 1370.0 – C57
2021-08-03 09:23:59 S 20 41 41.059 +26 02 05.53 – V C57
2021-08-03 09:23:59 s 1 -196845.32 7 +227435.09 7920.0 – C57
2021-08-03 09:33:59 S 20 41 42.713 +26 02 57.41 – V C57
2021-08-03 09:33:59 s 1 -196983.48 5 +226858.34 1320.0 – C57
2021-08-03 09:43:59 S 20 41 44.405 +26 03 48.28 – V C57
2021-08-03 09:43:59 s 1 -197120.66 6 +226280.47 1550.0 – C57
2021-08-03 09:45:06 C 20 41 41.93 +26 50 01.3 – V T08
2021-08-03 09:47:46 C 20 41 42.17 +26 50 14.5 – V T08
2021-08-03 09:51:46 C 20 41 42.54 +26 50 34.3 – V T08
2021-08-03 09:53:59 S 20 41 46.118 +26 04 39.00 – V C57
2021-08-03 09:53:59 s 1 -197256.86 5 +225701.47 8590.0 – C57
2021-08-03 10:03:59 S 20 41 47.767 +26 05 29.11 – V C57
2021-08-03 10:03:59 s 1 -197392.07 9 +225121.36 2450.0 – C57
2021-08-03 10:13:59 S 20 41 49.418 +26 06 20.02 – V C57
2021-08-03 10:13:59 s 1 -197526.30 3 +224540.12 3090.0 – C57
2021-08-03 10:22:51 C 20 41 45.37 +26 53 07.0 – V T08
2021-08-03 10:23:59 S 20 41 51.142 +26 07 09.77 – V C57
2021-08-03 10:23:59 s 1 -197659.53 4 +223957.75 520.0 – C57
2021-08-03 10:33:59 S 20 41 52.786 +26 08 00.78 – V C57
2021-08-03 10:33:59 s 1 -197791.76 8 +223374.27 4720.0 – C57
2021-08-03 10:53:59 S 20 41 56.167 +26 09 42.55 – V C57
2021-08-03 10:53:59 s 1 -198053.22 9 +222203.91 3380.0 – C57
2021-08-03 11:03:59 S 20 41 57.806 +26 10 33.13 – V C57
2021-08-03 11:03:59 s 1 -198182.44 8 +221617.05 7820.0 – C57
2021-08-03 11:13:59 S 20 41 59.537 +26 11 24.54 – V C57
2021-08-03 11:13:59 s 1 -198310.65 3 +221029.06 8970.0 – C57
2021-08-03 11:23:59 S 20 42 01.121 +26 12 14.04 – V C57
2021-08-03 11:23:59 s 1 -198437.84 2 +220439.93 6830.0 – C57
2021-08-03 11:33:59 S 20 42 02.834 +26 13 05.30 – V C57
2021-08-03 11:33:59 s 1 -198564.00 9 +219849.68 1380.0 – C57
2021-08-03 11:43:59 S 20 42 04.505 +26 13 56.32 – V C57
2021-08-03 11:43:59 s 1 -198689.15 2 +219258.31 2620.0 – C57
2021-08-03 11:53:59 S 20 42 06.166 +26 14 46.25 – V C57
2021-08-03 11:53:59 s 1 -198813.26 4 +218665.80 520.0 – C57
2021-08-03 12:03:59 S 20 42 07.877 +26 15 37.44 – V C57
2021-08-03 12:03:59 s 1 -198936.34 4 +218072.15 5080.0 – C57
2021-08-03 12:13:59 S 20 42 09.554 +26 16 27.12 – V C57
2021-08-03 12:13:59 s 1 -199058.38 6 +217477.38 6280.0 – 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)