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
2021-08-05 10:23:59 S 20 49 19.306 +30 04 12.58 – V C57
2021-08-05 10:23:59 s 1 -168719.99 1 + 8999.999 3620.0 – C57
2021-08-05 10:33:59 S 20 49 20.263 +30 04 52.90 – V C57
2021-08-05 10:33:59 s 1 -168235.22 5 + 8117.287 6490.0 – C57
2021-08-05 10:43:59 S 20 49 21.665 +30 05 43.91 – V C57
2021-08-05 10:43:59 s 1 -167746.07 5 + 7234.368 5510.0 – C57
2021-08-05 10:53:59 S 20 49 22.973 +30 06 34.24 – V C57
2021-08-05 10:53:59 s 1 -167252.51 3 + 6351.262 570.0 – C57
2021-08-05 11:03:59 S 20 49 24.290 +30 07 22.69 – V C57
2021-08-05 11:03:59 s 1 -166754.51 0 + 5467.993 1590.0 – C57
2021-08-05 11:13:59 S 20 49 25.615 +30 08 15.72 – V C57
2021-08-05 11:13:59 s 1 -166252.03 8 + 4584.581 8480.0 – C57
2021-08-05 11:23:59 S 20 49 26.875 +30 09 03.64 – V C57
2021-08-05 11:23:59 s 1 -165745.06 7 + 3701.049 1150.0 – C57
2021-08-05 11:33:59 S 20 49 28.193 +30 09 53.78 – V C57
2021-08-05 11:33:59 s 1 -165233.56 8 + 2817.420 9510.0 – C57
2021-08-05 11:43:59 S 20 49 29.518 +30 10 43.43 – V C57
2021-08-05 11:43:59 s 1 -164717.51 2 + 1933.718 3470.0 – C57
2021-08-05 11:53:59 S 20 49 30.799 +30 11 31.70 – V C57
2021-08-05 11:53:59 s 1 -164196.86 7 + 1049.966 2930.0 – C57
2021-08-05 12:03:59 S 20 49 32.069 +30 12 19.80 – V C57
2021-08-05 12:03:59 s 1 -163671.60 6 + 166.188 7810.0 – C57
2021-08-05 12:04:35 V 20 47 30.68 +30 34 26.0 15.2 V 247
2021-08-05 12:04:35 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:05:35 V 20 47 30.76 +30 34 29.8 15.1 V 247
2021-08-05 12:05:35 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:06:35 V 20 47 30.86 +30 34 34.4 14.8 V 247
2021-08-05 12:06:35 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:07:34 V 20 47 30.93 +30 34 38.2 14.8 V 247
2021-08-05 12:07:34 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:08:34 V 20 47 31.05 +30 34 42.4 14.7 V 247
2021-08-05 12:08:34 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:09:33 V 20 47 31.15 +30 34 46.9 14.8 V 247
2021-08-05 12:09:33 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:10:33 V 20 47 31.24 +30 34 50.8 14.7 V 247
2021-08-05 12:10:33 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:11:32 V 20 47 31.31 +30 34 55.0 15.0 V 247
2021-08-05 12:11:32 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:12:32 V 20 47 31.41 +30 34 59.0 15.2 V 247
2021-08-05 12:12:32 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:13:31 V 20 47 31.49 +30 35 02.8 15.4 V 247
2021-08-05 12:13:31 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:13:59 S 20 49 33.336 +30 13 10.16 – V C57
2021-08-05 12:13:59 s 1 -163141.69 7 - 717.590 8000.0 – C57
2021-08-05 12:14:31 V 20 47 31.54 +30 35 07.2 15.4 V 247
2021-08-05 12:14:31 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:15:31 V 20 47 31.64 +30 35 11.3 15.2 V 247
2021-08-05 12:15:31 v 1 134.17920 +34.51211 – – 247
2021-08-05 12:16:30 V 20 47 31.72 +30 35 15.5 14.9 V 247
2021-08-05 12:16:30 v 1 134.17920 +34.51211 – – 247
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)