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
2021-07-20 15:53:39 V 19 48 17.94 -19 13 06.4 13.0 V 247
2021-07-20 15:53:39 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:54:18 V 19 48 18.06 -19 12 58.8 12.9 V 247
2021-07-20 15:54:18 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:54:58 V 19 48 18.16 -19 12 52.3 12.9 V 247
2021-07-20 15:54:58 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:55:38 V 19 48 18.29 -19 12 45.3 12.9 V 247
2021-07-20 15:55:38 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:56:17 V 19 48 18.36 -19 12 38.1 12.9 V 247
2021-07-20 15:56:17 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:56:57 V 19 48 18.51 -19 12 31.0 12.9 V 247
2021-07-20 15:56:57 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:57:37 V 19 48 18.64 -19 12 23.7 12.9 V 247
2021-07-20 15:57:37 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:58:16 V 19 48 18.76 -19 12 16.7 13.1 V 247
2021-07-20 15:58:16 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:58:56 V 19 48 18.89 -19 12 10.0 13.0 V 247
2021-07-20 15:58:56 v 1 140.47340 +35.98948 – – 247
2021-07-20 15:59:36 V 19 48 19.01 -19 12 02.6 12.8 V 247
2021-07-20 15:59:36 v 1 140.47340 +35.98948 – – 247
2021-07-20 16:00:16 V 19 48 19.15 -19 11 55.2 12.5 V 247
2021-07-20 16:00:16 v 1 140.47340 +35.98948 – – 247
2021-07-20 16:00:55 V 19 48 19.31 -19 11 49.1 12.5 V 247
2021-07-20 16:00:55 v 1 140.47340 +35.98948 – – 247
2021-07-20 16:01:35 V 19 48 19.37 -19 11 42.6 12.5 V 247
2021-07-20 16:01:35 v 1 140.47340 +35.98948 – – 247
2021-07-20 16:02:15 V 19 48 19.46 -19 11 34.6 12.9 V 247
2021-07-20 16:02:15 v 1 140.47340 +35.98948 – – 247
2021-07-20 16:02:54 V 19 48 19.59 -19 11 27.4 13.1 V 247
2021-07-20 16:02:54 v 1 140.47340 +35.98948 – – 247
2021-07-20 16:03:34 V 19 48 19.70 -19 11 20.7 13.1 V 247
2021-07-20 16:03:34 v 1 140.47340 +35.98948 – – 247
2021-07-20 18:12:18 C 19 48 51.72 -18 48 49.8 – V 186
2021-07-20 18:17:38 C 19 48 52.67 -18 47 53.8 – V 186
2021-07-20 21:40:15 C 19 49 28.69 -18 12 12.5 – V 186
2021-07-20 21:40:47 C 19 49 28.81 -18 12 06.6 – V 186
2021-07-20 21:41:45 C 19 49 34.87 -18 12 12.3 – V G34
2021-07-20 21:43:51 C 19 49 35.24 -18 11 50.6 – V G34
2021-07-20 21:45:57 C 19 49 35.62 -18 11 28.3 – V G34
2021-07-20 21:48:03 C 19 49 35.99 -18 11 06.0 – V G34
2021-07-20 22:09:51 C 19 49 40.74 -18 07 15.6 – V K85
2021-07-20 22:29:51 C 19 49 44.38 -18 03 45.0 – V K85
2021-07-21 05:17:33 C 19 51 08.07 -16 51 41.0 – V V93
2021-07-21 05:19:13 V 19 51 11.83 -16 51 09.7 13.0 V 247
2021-07-21 05:19:13 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:19:53 V 19 51 11.89 -16 51 03.3 13.3 V 247
2021-07-21 05:19:53 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:20:33 V 19 51 12.02 -16 50 55.6 13.3 V 247
2021-07-21 05:20:33 v 1 240.91437 +34.23800 – – 247
2021-07-21 05:21:12 V 19 51 12.13 -16 50 48.1 12.9 V 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)