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
2021-06-21 09:24:02 S 17 06 18.979 -68 45 31.93 – V C57
2021-06-21 09:24:02 s 1 -185017.78 4 +250078.47 250.0 – C57
2021-06-21 09:34:02 S 17 06 20.902 -68 45 32.18 – V C57
2021-06-21 09:34:02 s 1 -185178.68 6 +249525.46 1660.0 – C57
2021-06-21 09:44:02 S 17 06 22.253 -68 45 29.30 – V C57
2021-06-21 09:44:02 s 1 -185338.73 5 +248971.32 510.0 – C57
2021-06-21 09:54:02 S 17 06 24.636 -68 45 25.67 – V C57
2021-06-21 09:54:02 s 1 -185497.92 6 +248416.05 6790.0 – C57
2021-06-21 10:04:02 S 17 06 25.522 -68 45 24.88 – V C57
2021-06-21 10:04:02 s 1 -185656.25 8 +247859.65 470.0 – C57
2021-06-21 10:14:02 S 17 06 27.427 -68 45 23.72 – V C57
2021-06-21 10:14:02 s 1 -185813.72 5 +247302.13 1570.0 – C57
2021-06-21 10:24:02 S 17 06 29.527 -68 45 23.58 – V C57
2021-06-21 10:24:02 s 1 -185970.32 5 +246743.47 50.0 – C57
2021-06-21 11:14:02 S 17 06 37.841 -68 45 19.76 – V C57
2021-06-21 11:14:02 s 1 -186740.19 4 +243933.16 3060.0 – C57
2021-06-21 11:24:02 S 17 06 39.835 -68 45 18.58 – V C57
2021-06-21 11:24:02 s 1 -186891.51 6 +243367.69 5700.0 – C57
2021-06-21 11:34:02 S 17 06 41.794 -68 45 17.28 – V C57
2021-06-21 11:34:02 s 1 -187041.94 6 +242801.08 5660.0 – C57
2021-06-21 11:44:02 S 17 06 43.046 -68 45 15.41 – V C57
2021-06-21 11:44:02 s 1 -187191.48 0 +242233.34 2940.0 – C57
2021-06-21 11:54:02 S 17 06 45.070 -68 45 14.36 – V C57
2021-06-21 11:54:02 s 1 -187340.11 5 +241664.44 7520.0 – C57
2021-06-21 12:04:02 S 17 06 46.558 -68 45 13.61 – V C57
2021-06-21 12:04:02 s 1 -187487.84 6 +241094.41 9380.0 – C57
2021-06-21 12:14:02 S 17 06 48.602 -68 45 12.28 – V C57
2021-06-21 12:14:02 s 1 -187634.67 1 +240523.23 8530.0 – C57
2021-06-21 12:24:02 S 17 06 50.047 -68 45 12.17 – V C57
2021-06-21 12:24:02 s 1 -187780.58 5 +239950.91 4950.0 – C57
2021-06-21 12:34:02 S 17 06 51.826 -68 45 09.94 – V C57
2021-06-21 12:34:02 s 1 -187925.58 4 +239377.44 8620.0 – C57
2021-06-21 12:44:02 S 17 06 53.496 -68 45 11.20 – V C57
2021-06-21 12:44:02 s 1 -188069.66 6 +238802.83 9540.0 – C57
2021-06-21 12:54:02 S 17 06 55.229 -68 45 08.60 – V C57
2021-06-21 12:54:02 s 1 -188212.82 7 +238227.07 7520.0 – C57
2021-06-21 13:04:02 S 17 06 56.995 -68 45 07.88 – V C57
2021-06-21 13:04:02 s 1 -188355.12 6 +237650.12 4620.0 – C57
2021-06-21 13:14:02 S 17 06 58.690 -68 45 07.85 – V C57
2021-06-21 13:14:02 s 1 -188496.42 8 +237072.05 7690.0 – C57
2021-06-21 13:24:02 S 17 07 00.444 -68 45 05.72 – V C57
2021-06-21 13:24:02 s 1 -188636.80 0 +236492.84 7500.0 – C57
2021-06-21 13:34:02 S 17 07 01.831 -68 45 03.96 – V C57
2021-06-21 13:34:02 s 1 -188776.23 4 +235912.47 4500.0 – C57
2021-06-21 13:44:02 S 17 07 03.922 -68 45 03.06 – V C57
2021-06-21 13:44:02 s 1 -188914.72 8 +235330.95 8680.0 – C57
2021-06-21 13:54:02 S 17 07 05.378 -68 45 01.15 – V C57
2021-06-21 13:54:02 s 1 -189052.27 7 +234748.27 30.0 – C57
2021-06-21 14:04:02 S 17 07 07.214 -68 45 00.79 – V C57
2021-06-21 14:04:02 s 1 -189188.87 7 +234164.44 8530.0 – 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)