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
2021-06-23 08:44:02 S 17 13 28.202 -68 40 43.72 – V C57
2021-06-23 08:44:02 s 1 -175035.19 0 +43976.888 7230.0 – C57
2021-06-23 08:54:02 S 17 13 29.460 -68 40 42.49 – V C57
2021-06-23 08:54:02 s 1 -174673.50 7 +43076.373 5130.0 – C57
2021-06-23 09:04:02 S 17 13 30.614 -68 40 41.74 – V C57
2021-06-23 09:04:02 s 1 -174307.97 3 +42174.915 1950.0 – C57
2021-06-23 09:14:02 S 17 13 31.445 -68 40 40.76 – V C57
2021-06-23 09:14:02 s 1 -173938.56 1 +41272.524 7590.0 – C57
2021-06-23 09:24:02 S 17 13 32.563 -68 40 40.73 – V C57
2021-06-23 09:24:02 s 1 -173565.24 2 +40369.213 1990.0 – C57
2021-06-23 09:34:02 S 17 13 33.686 -68 40 38.93 – V C57
2021-06-23 09:34:02 s 1 -173187.98 7 +39464.993 5070.0 – C57
2021-06-23 09:44:02 S 17 13 34.968 -68 40 38.64 – V C57
2021-06-23 09:44:02 s 1 -172806.76 9 +38559.876 6740.0 – C57
2021-06-23 09:54:02 S 17 13 35.942 -68 40 36.01 – V C57
2021-06-23 09:54:02 s 1 -172421.55 8 +37653.874 6920.0 – C57
2021-06-23 10:14:02 S 17 13 38.054 -68 40 35.04 – V C57
2021-06-23 10:14:02 s 1 -171639.04 0 +35839.265 2510.0 – C57
2021-06-23 10:24:02 S 17 13 39.108 -68 40 30.97 – V C57
2021-06-23 10:24:02 s 1 -171241.67 4 +34930.685 7740.0 – C57
2021-06-23 10:34:02 S 17 13 39.833 -68 40 32.16 – V C57
2021-06-23 10:34:02 s 1 -170840.19 6 +34021.272 1170.0 – C57
2021-06-23 10:44:02 S 17 13 41.090 -68 40 29.86 – V C57
2021-06-23 10:44:02 s 1 -170434.57 7 +33111.040 2690.0 – C57
2021-06-23 11:14:02 S 17 13 44.153 -68 40 25.86 – V C57
2021-06-23 11:14:02 s 1 -169192.56 1 +30375.572 5020.0 – C57
2021-06-23 11:44:02 S 17 13 47.443 -68 40 23.66 – V C57
2021-06-23 11:44:02 s 1 -167912.14 9 +27633.262 7150.0 – C57
2021-06-23 12:04:02 S 17 13 49.411 -68 40 21.61 – V C57
2021-06-23 12:04:02 s 1 -167036.78 5 +25801.464 6180.0 – C57
2021-06-23 12:34:02 S 17 13 52.373 -68 40 15.28 – V C57
2021-06-23 12:34:02 s 1 -165690.44 5 +23048.722 9320.0 – C57
2021-06-23 14:04:02 S 17 14 00.713 -68 40 03.65 – V C57
2021-06-23 14:04:02 s 1 -161403.13 5 +14758.863 8170.0 – C57
2021-06-23 14:24:02 S 17 14 02.822 -68 40 01.70 – V C57
2021-06-23 14:24:02 s 1 -160398.00 7 +12911.283 5960.0 – C57
2021-06-23 15:04:02 S 17 14 06.046 -68 39 54.94 – V C57
2021-06-23 15:04:02 s 1 -158328.39 2 + 9211.614 2150.0 – C57
2021-06-23 15:24:02 S 17 14 07.474 -68 39 52.02 – V C57
2021-06-23 15:24:02 s 1 -157263.29 5 + 7359.927 8880.0 – C57
2021-06-23 15:34:02 S 17 14 08.323 -68 39 49.72 – V C57
2021-06-23 15:34:02 s 1 -156723.03 8 + 6433.713 5290.0 – C57
2021-06-23 15:44:02 S 17 14 09.485 -68 39 49.79 – V C57
2021-06-23 15:44:02 s 1 -156177.59 0 + 5507.289 6910.0 – C57
2021-06-23 15:54:02 S 17 14 10.202 -68 39 47.20 – V C57
2021-06-23 15:54:02 s 1 -155626.91 0 + 4580.683 3630.0 – C57
2021-06-23 16:04:02 S 17 14 10.800 -68 39 45.04 – V C57
2021-06-23 16:04:02 s 1 -155070.95 8 + 3653.926 5360.0 – C57
2021-06-23 16:14:02 S 17 14 11.767 -68 39 43.67 – V C57
2021-06-23 16:14:02 s 1 -154509.69 5 + 2727.046 1970.0 – 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)