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
2021-08-17 01:12:46 C 21 12 03.12 +41 58 19.9 V I22
2021-08-17 01:13:16 C 21 12 03.17 +41 58 20.6 V I22
2021-08-17 01:13:46 C 21 12 03.20 +41 58 21.3 V I22
2021-08-17 01:14:15 C 21 12 03.23 +41 58 21.8 V I22
2021-08-17 01:14:45 C 21 12 03.26 +41 58 22.8 V I22
2021-08-17 01:15:15 C 21 12 03.28 +41 58 23.5 V I22
2021-08-17 01:15:43 C 21 12 03.31 +41 58 23.8 V I22
2021-08-17 01:16:14 C 21 12 03.35 +41 58 24.9 V I22
2021-08-17 01:16:43 C 21 12 03.35 +41 58 25.4 V I22
2021-08-17 01:17:12 C 21 12 03.44 +41 58 26.5 V I22
2021-08-17 01:17:43 C 21 12 03.43 +41 58 27.0 V I22
2021-08-17 01:18:12 C 21 12 03.44 +41 58 27.6 V I22
2021-08-17 01:18:41 C 21 12 03.47 +41 58 28.2 V I22
2021-08-17 01:19:11 C 21 12 03.52 +41 58 28.9 V I22
2021-08-17 01:19:41 C 21 12 03.55 +41 58 30.0 V I22
2021-08-17 01:20:09 C 21 12 03.59 +41 58 30.3 V I22
2021-08-17 01:20:40 C 21 12 03.60 +41 58 31.0 V I22
2021-08-17 01:21:10 C 21 12 03.63 +41 58 31.8 V I22
2021-08-17 01:21:39 C 21 12 03.66 +41 58 32.4 V I22
2021-08-17 01:22:10 C 21 12 03.69 +41 58 33.3 V I22
2021-08-17 01:22:40 C 21 12 03.71 +41 58 33.9 V I22
2021-08-17 01:23:08 C 21 12 03.76 +41 58 34.6 V I22
2021-08-17 01:23:38 C 21 12 03.78 +41 58 35.1 V I22
2021-08-18 19:54:33 C 21 15 03.45 +42 50 59.4 q L47
2021-08-18 20:31:07 C 21 15 05.45 +42 51 43.6 q L47
2021-08-19 19:33:23 C 21 16 39.54 +43 16 11.7 q L47
2021-08-19 20:12:48 C 21 16 41.71 +43 16 54.6 q L47
2021-08-20 09:46:49 C 21 17 33.46 +43 30 37.1 V T08
2021-08-20 10:34:47 C 21 17 35.67 +43 31 22.0 V T08
2021-08-20 10:39:26 C 21 17 35.88 +43 31 26.1 V T08
2021-08-20 10:49:23 C 21 17 36.36 +43 31 34.9 V T08
2021-08-20 19:31:19 C 21 18 14.04 +43 39 10.7 q L47
2021-08-20 20:19:21 C 21 18 16.63 +43 39 57.7 q L47
2021-08-20 21:17:03 C 21 18 19.58 +43 40 47.1 V K74
2021-08-20 21:20:51 C 21 18 19.78 +43 40 50.3 V K74
2021-08-20 21:22:30 C 21 18 19.86 +43 40 51.9 V K74
2021-08-20 21:24:07 C 21 18 19.95 +43 40 53.4 V K74
2021-08-20 21:29:20 C 21 18 20.22 +43 40 58.3 V K74
2021-08-20 21:35:21 C 21 18 20.52 +43 41 03.6 V K74
2021-08-20 21:39:48 C 21 18 20.77 +43 41 07.9 V K74
2021-08-21 20:52:11 C 21 19 50.31 +44 00 55.9 q L47
2021-08-21 21:01:29 C 21 19 50.33 +44 00 59.9 X G02
2021-08-21 21:10:11 C 21 19 50.76 +44 01 07.0 X G02
2021-08-21 21:11:28 C 21 19 50.22 +44 01 10.8 V 089
2021-08-21 21:14:48 C 21 19 50.33 +44 01 13.1 V 089
2021-08-21 21:18:09 C 21 19 50.47 +44 01 15.5 V 089
2021-08-21 21:18:50 C 21 19 51.21 +44 01 14.2 X G02
2021-08-21 21:21:30 C 21 19 50.68 +44 01 19.7 V 089
2021-08-21 21:22:27 C 21 19 51.83 +44 01 22.0 q L47
2021-08-21 21:24:49 C 21 19 50.81 +44 01 21.9 V 089
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)