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
2021-09-12 19:35:18 C 21 47 52.49 +44 51 14.4 V 089
2021-09-12 19:38:19 C 21 47 52.60 +44 51 13.3 V 089
2021-09-12 19:41:20 C 21 47 52.68 +44 51 12.5 V 089
2021-09-12 19:44:21 C 21 47 52.89 +44 51 10.5 V 089
2021-09-12 19:47:23 C 21 47 52.95 +44 51 10.3 V 089
2021-09-12 19:50:24 C 21 47 53.09 +44 51 08.9 V 089
2021-09-12 19:53:25 C 21 47 53.23 +44 51 07.4 V 089
2021-09-12 19:56:26 C 21 47 53.33 +44 51 06.4 V 089
2021-09-13 20:17:29 C 21 49 08.46 +44 41 08.8 V Z80
2021-09-13 20:24:08 C 21 49 08.75 +44 41 06.2 V Z80
2021-09-13 20:30:49 C 21 49 09.03 +44 41 03.3 V Z80
2021-09-15 10:08:42 C 21 51 03.06 +44 24 40.9 V T05
2021-09-15 10:13:19 C 21 51 03.23 +44 24 38.8 V T05
2021-09-15 10:20:41 C 21 51 03.53 +44 24 35.1 V T05
2021-09-15 10:35:18 C 21 51 04.13 +44 24 27.7 V T05
2021-09-15 11:00:25 C 21 51 05.19 +44 24 14.9 V T05
2021-09-17 20:28:05 C 21 54 06.37 +43 55 42.7 V K74
2021-09-17 20:31:33 C 21 54 06.53 +43 55 41.3 V K74
2021-09-17 20:34:50 C 21 54 06.70 +43 55 39.4 V K74
2021-09-21 23:02:58 C 21 59 20.39 +43 00 02.8 V Z80
2021-09-21 23:09:38 C 21 59 20.73 +42 59 58.3 V Z80
2021-09-21 23:16:18 C 21 59 21.01 +42 59 54.0 V Z80
2021-09-22 20:44:57 C 22 00 31.99 +42 46 45.1 X Z43
2021-09-22 20:55:21 C 22 00 32.49 +42 46 39.1 X Z43
2021-09-22 21:05:43 C 22 00 32.98 +42 46 32.7 X Z43
2021-09-24 07:49:01 C 22 02 27.006 +42 24 45.41 U F52
2021-09-24 08:04:42 C 22 02 27.720 +42 24 35.38 U F52
2021-09-24 08:20:20 C 22 02 28.435 +42 24 25.30 U F52
2021-09-24 08:36:01 C 22 02 29.150 +42 24 15.09 U F52
2021-09-26 02:08:58 C 22 04 48.60 +41 56 41.3 V V93
2021-09-26 02:53:52 C 22 04 50.78 +41 56 12.5 V V93
2021-09-26 03:45:32 C 22 04 53.29 +41 55 38.0 V V93
2021-09-27 09:21:22 C 22 06 32.54 +41 35 35.3 V T05
2021-09-27 09:25:59 C 22 06 32.76 +41 35 31.8 V T05
2021-09-27 09:34:35 C 22 06 33.19 +41 35 25.8 V T05
2021-09-27 09:49:06 C 22 06 33.90 +41 35 15.2 V T05
2021-09-29 01:21:27 C 22 08 50.99 +41 07 24.7 V V93
2021-09-29 02:18:34 C 22 08 53.94 +41 06 45.8 V V93
2021-09-29 03:06:36 C 22 08 56.41 +41 06 11.8 V V93
2021-10-03 03:41:21 C 22 14 36.07 +39 55 36.0 V G96
2021-10-03 03:50:46 C 22 14 36.56 +39 55 28.8 V G96
2021-10-03 04:00:13 C 22 14 37.09 +39 55 22.0 V G96
2021-10-03 04:09:38 C 22 14 37.56 +39 55 15.2 V G96
2021-10-03 08:56:53 C 22 14 53.91 +39 51 44.4 V T08
2021-10-03 09:01:34 C 22 14 54.18 +39 51 40.2 V T08
2021-10-03 09:10:12 C 22 14 54.60 +39 51 33.7 V T08
2021-10-03 09:24:48 C 22 14 55.35 +39 51 22.2 V T08
2021-10-05 06:18:58 C 22 17 39.412 +39 17 21.38 U F52
2021-10-05 06:34:32 C 22 17 40.249 +39 17 09.80 U F52
2021-10-05 06:50:04 C 22 17 41.080 +39 16 58.16 U F52
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)