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
2021-08-01 13:11:51 V 20 36 10.07 +22 50 54.7 13.7 V 247
2021-08-01 13:11:51 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:13:59 S 20 34 06.158 +22 05 56.33 – V C57
2021-08-01 13:13:59 s 1 -134836.39 4 +342921.00 9160.0 – C57
2021-08-01 13:15:49 V 20 36 10.52 +22 51 17.8 13.6 V 247
2021-08-01 13:15:49 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:16:48 V 20 36 10.62 +22 51 23.6 14.6 V 247
2021-08-01 13:16:48 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:18:47 V 20 36 10.82 +22 51 35.1 14.9 V 247
2021-08-01 13:18:47 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:19:47 V 20 36 10.93 +22 51 41.1 13.8 V 247
2021-08-01 13:19:47 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:23:59 S 20 34 07.891 +22 06 53.50 – V C57
2021-08-01 13:23:59 s 1 -135139.81 8 +342618.19 6690.0 – C57
2021-08-01 13:24:45 V 20 36 11.36 +22 52 10.1 14.0 V 247
2021-08-01 13:24:45 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:25:44 V 20 36 11.50 +22 52 15.8 14.7 V 247
2021-08-01 13:25:44 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:26:44 V 20 36 11.63 +22 52 21.4 15.3 V 247
2021-08-01 13:26:44 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:27:44 V 20 36 11.74 +22 52 27.3 14.7 V 247
2021-08-01 13:27:44 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:28:43 V 20 36 11.83 +22 52 33.2 14.7 V 247
2021-08-01 13:28:43 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:29:43 V 20 36 11.97 +22 52 39.0 14.9 V 247
2021-08-01 13:29:43 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:30:42 V 20 36 12.06 +22 52 44.8 15.0 V 247
2021-08-01 13:30:42 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:31:42 V 20 36 12.20 +22 52 51.1 14.7 V 247
2021-08-01 13:31:42 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:33:59 S 20 34 09.631 +22 07 49.87 – V C57
2021-08-01 13:33:59 s 1 -135442.86 7 +342314.41 2940.0 – C57
2021-08-01 13:36:55 V 20 36 12.73 +22 53 21.8 14.9 V 247
2021-08-01 13:36:55 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:43:59 S 20 34 11.400 +22 08 46.57 – V C57
2021-08-01 13:43:59 s 1 -135745.53 8 +342009.67 7900.0 – C57
2021-08-01 13:45:51 V 20 36 13.66 +22 54 13.6 15.2 V 247
2021-08-01 13:45:51 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:49:49 V 20 36 14.08 +22 54 36.2 14.7 V 247
2021-08-01 13:49:49 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:50:48 V 20 36 14.17 +22 54 41.3 14.5 V 247
2021-08-01 13:50:48 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:51:48 V 20 36 14.32 +22 54 48.3 14.3 V 247
2021-08-01 13:51:48 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:52:48 V 20 36 14.37 +22 54 54.0 14.5 V 247
2021-08-01 13:52:48 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:53:47 V 20 36 14.50 +22 54 59.4 14.5 V 247
2021-08-01 13:53:47 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:53:59 S 20 34 13.114 +22 09 42.30 – V C57
2021-08-01 13:53:59 s 1 -136047.83 1 +341703.97 1590.0 – 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)