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 02:22:50 C 19 45 32.41 -21 32 11.9 – Z X39
2021-07-20 02:23:54 C 19 45 32.81 -21 32 04.2 – Z X39
2021-07-20 02:24:59 C 19 45 32.71 -21 31 53.3 – Z X39
2021-07-20 02:26:04 C 19 45 32.97 -21 31 40.7 – Z X39
2021-07-20 02:27:08 C 19 45 33.48 -21 31 29.6 – Z X39
2021-07-20 02:28:13 C 19 45 33.64 -21 31 19.7 – Z X39
2021-07-20 02:29:17 C 19 45 33.60 -21 31 07.8 – Z X39
2021-07-20 02:30:22 C 19 45 33.75 -21 30 58.6 – Z X39
2021-07-20 02:31:26 C 19 45 33.83 -21 30 42.8 – Z X39
2021-07-20 02:32:31 C 19 45 34.29 -21 30 38.4 – Z X39
2021-07-20 02:33:36 C 19 45 34.80 -21 30 26.4 – Z X39
2021-07-20 02:34:40 C 19 45 34.47 -21 30 07.3 – Z X39
2021-07-20 02:35:45 C 19 45 35.05 -21 30 02.5 – Z X39
2021-07-20 02:36:48 C 19 45 35.10 -21 29 45.4 – Z X39
2021-07-20 02:37:53 C 19 45 35.20 -21 29 37.9 – Z X39
2021-07-20 02:38:58 C 19 45 35.36 -21 29 26.1 – Z X39
2021-07-20 02:40:02 C 19 45 35.62 -21 29 16.0 – Z X39
2021-07-20 02:41:07 C 19 45 35.76 -21 29 02.6 – Z X39
2021-07-20 02:42:12 C 19 45 35.85 -21 28 53.6 – Z X39
2021-07-20 02:43:16 C 19 45 36.24 -21 28 43.2 – Z X39
2021-07-20 02:44:20 C 19 45 36.52 -21 28 34.7 – Z X39
2021-07-20 05:40:13 C 19 46 12.11 -21 00 22.0 – V V93
2021-07-20 06:25:39 C 19 46 14.26 -20 50 17.8 – q Y00
2021-07-20 06:27:28 C 19 46 14.62 -20 49 58.3 – q Y00
2021-07-20 06:29:52 C 19 46 15.06 -20 49 33.0 – q Y00
2021-07-20 06:41:03 C 19 46 23.07 -20 49 47.0 – V V93
2021-07-20 08:01:03 C 19 46 46.20 -20 35 13.8 – V T08
2021-07-20 08:03:02 C 19 46 46.55 -20 34 52.9 – V T08
2021-07-20 08:03:42 C 19 46 46.67 -20 34 46.4 – V T08
2021-07-20 08:04:22 C 19 46 46.79 -20 34 39.5 – V T08
2021-07-20 09:11:25 C 19 46 58.62 -20 23 03.0 – V T08
2021-07-20 09:14:04 C 19 46 59.09 -20 22 35.3 – V T08
2021-07-20 09:18:03 C 19 46 59.78 -20 21 53.8 – V T08
2021-07-20 09:27:20 C 19 47 01.39 -20 20 17.0 – V T08
2021-07-20 14:33:10 V 19 48 03.75 -19 27 13.7 12.9 V 247
2021-07-20 14:33:10 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:33:54 V 19 48 03.85 -19 27 04.7 12.8 V 247
2021-07-20 14:33:54 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:34:38 V 19 48 03.97 -19 26 58.7 12.5 V 247
2021-07-20 14:34:38 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:36:37 V 19 48 04.29 -19 26 38.0 12.8 V 247
2021-07-20 14:36:37 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:37:17 V 19 48 04.52 -19 26 30.9 12.6 V 247
2021-07-20 14:37:17 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:37:58 V 19 48 04.59 -19 26 23.3 12.8 V 247
2021-07-20 14:37:58 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:38:40 V 19 48 04.65 -19 26 16.4 12.8 V 247
2021-07-20 14:38:40 v 1 140.47340 +35.98948 – – 247
2021-07-20 14:39:20 V 19 48 04.81 -19 26 09.0 12.7 V 247
2021-07-20 14:39:20 v 1 140.47340 +35.98948 – – 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)