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
2021-10-05 09:00:48 C 22 17 48.06 +39 15 18.1 – V T05
2021-10-05 09:05:26 C 22 17 48.31 +39 15 14.5 – V T05
2021-10-05 09:14:40 C 22 17 48.81 +39 15 07.4 – V T05
2021-10-05 09:29:14 C 22 17 49.61 +39 14 55.8 – V T05
2021-10-08 20:27:31 C 22 22 59.21 +38 10 47.5 18.4 q 122
2021-10-08 20:43:20 C 22 23 00.12 +38 10 35.5 18.4 q 122
2021-10-08 21:01:47 C 22 23 01.18 +38 10 21.3 18.4 q 122
2021-10-11 04:34:10 C 22 26 33.55 +37 27 10.7 – V 703
2021-10-11 04:43:12 C 22 26 34.06 +37 27 03.5 – V 703
2021-10-11 04:52:18 C 22 26 34.62 +37 26 56.1 – V 703
2021-10-11 05:01:17 C 22 26 35.13 +37 26 49.1 – V 703
2021-10-11 08:24:34 C 22 26 48.09 +37 24 14.8 – V T08
2021-10-11 08:33:12 C 22 26 48.55 +37 24 08.2 – V T08
2021-10-11 08:49:49 C 22 26 49.52 +37 23 54.8 – V T08
2021-10-13 08:49:42 C 22 29 56.84 +36 46 31.1 – V T05
2021-10-13 08:54:20 C 22 29 57.08 +36 46 27.7 – V T05
2021-10-13 09:04:17 C 22 29 57.67 +36 46 19.8 – V T05
2021-10-13 09:08:53 C 22 29 57.98 +36 46 16.2 – V T05
2021-10-13 09:13:31 C 22 29 58.23 +36 46 12.3 – V T05
2021-10-13 09:19:28 C 22 29 58.58 +36 46 07.5 – V T05
2021-10-13 09:21:30 C 22 29 58.74 +36 46 06.4 – V T05
2021-10-13 09:38:43 C 22 29 59.77 +36 45 52.1 – V T05
2021-10-15 03:33:12 C 22 32 46.91 +36 13 19.1 – V G96
2021-10-15 03:41:28 C 22 32 47.41 +36 13 12.7 – V G96
2021-10-15 03:52:55 C 22 32 48.11 +36 13 03.9 – V G96
2021-10-15 04:01:13 C 22 32 48.62 +36 12 57.5 – V G96
2021-10-15 07:51:04 C 22 33 03.57 +36 10 03.4 – V T08
2021-10-15 07:55:43 C 22 33 03.89 +36 10 00.3 – V T08
2021-10-15 08:03:41 C 22 33 04.33 +36 09 54.2 – V T08
2021-10-15 08:18:18 C 22 33 05.21 +36 09 43.3 – V T08
2021-10-15 19:50:03 C 22 33 51.89 +36 00 40.5 – V 160
2021-10-15 19:52:56 C 22 33 52.04 +36 00 38.6 – V 160
2021-10-15 19:55:50 C 22 33 52.24 +36 00 36.4 – V 160
2021-10-16 20:30:29 C 22 35 30.93 +35 41 41.7 – a 233
2021-10-16 20:36:34 C 22 35 31.40 +35 41 37.3 – a 233
2021-10-16 20:42:38 C 22 35 31.85 +35 41 32.4 – a 233
2021-10-17 02:01:42 C 22 35 53.63 +35 37 28.0 – V V93
2021-10-17 03:05:45 C 22 35 57.61 +35 36 39.5 – V V93
2021-10-17 04:00:19 C 22 36 01.05 +35 35 56.6 – V V93
2021-10-17 08:18:58 C 22 36 18.47 +35 32 44.5 – V T05
2021-10-17 08:24:20 C 22 36 18.76 +35 32 41.0 – V T05
2021-10-17 08:32:18 C 22 36 19.29 +35 32 34.3 – V T05
2021-10-17 08:46:49 C 22 36 20.17 +35 32 23.9 – V T05
2021-10-17 19:17:17 C 22 37 03.58 +35 24 15.9 – q 160
2021-10-17 19:19:33 C 22 37 03.73 +35 24 13.1 – q 160
2021-10-17 19:22:18 C 22 37 03.90 +35 24 10.7 – q 160
2021-10-18 08:38:53 C 22 37 57.23 +35 14 10.4 – V T08
2021-10-18 08:39:33 C 22 37 57.33 +35 14 10.1 – V T08
2021-10-18 08:56:27 C 22 37 58.33 +35 13 56.6 – V T08
2021-10-18 09:29:09 C 22 38 00.43 +35 13 30.6 – V T08
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)