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
2021-08-21 21:28:09 C 21 19 50.99 +44 01 24.6 V 089
2021-08-21 21:31:28 C 21 19 51.11 +44 01 27.1 V 089
2021-08-22 08:29:24 C 21 20 34.00 +44 10 20.1 V T05
2021-08-22 08:34:40 C 21 20 34.25 +44 10 24.4 V T05
2021-08-22 08:44:03 C 21 20 34.66 +44 10 31.8 V T05
2021-08-22 19:19:24 C 21 21 15.24 +44 17 53.9 q L47
2021-08-22 19:40:41 C 21 21 16.37 +44 18 11.8 q L47
2021-08-22 20:15:53 C 21 21 17.11 +44 18 39.7 V 089
2021-08-22 20:18:23 C 21 21 17.22 +44 18 41.4 V 089
2021-08-22 20:20:54 C 21 21 17.34 +44 18 43.3 V 089
2021-08-22 20:23:25 C 21 21 17.48 +44 18 45.1 V 089
2021-08-22 20:25:56 C 21 21 17.60 +44 18 47.0 V 089
2021-08-22 20:28:27 C 21 21 17.71 +44 18 49.0 V 089
2021-08-22 20:30:58 C 21 21 17.85 +44 18 51.2 V 089
2021-08-23 00:25:07 C 21 21 30.89 +44 21 31.6 V Z80
2021-08-23 00:28:22 C 21 21 31.08 +44 21 33.6 V Z80
2021-08-23 21:01:24 C 21 22 46.75 +44 35 15.7 V 089
2021-08-23 21:03:57 C 21 22 46.86 +44 35 17.0 V 089
2021-08-23 21:06:30 C 21 22 46.98 +44 35 18.9 V 089
2021-08-23 21:09:03 C 21 22 47.09 +44 35 20.5 V 089
2021-08-23 21:11:35 C 21 22 47.21 +44 35 21.8 V 089
2021-08-23 21:14:08 C 21 22 47.34 +44 35 23.4 V 089
2021-08-23 21:16:41 C 21 22 47.45 +44 35 25.2 V 089
2021-08-23 21:19:12 C 21 22 47.60 +44 35 26.5 V 089
2021-08-23 21:21:44 C 21 22 47.68 +44 35 28.0 V 089
2021-08-23 22:54:17 C 21 22 53.69 +44 36 22.0 V Z80
2021-08-23 22:59:17 C 21 22 53.89 +44 36 25.0 V Z80
2021-08-23 23:04:17 C 21 22 54.19 +44 36 28.1 V Z80
2021-08-24 01:56:36 C 21 23 06.64 +44 38 21.4 V W46
2021-08-24 02:10:22 C 21 23 07.26 +44 38 30.8 V W46
2021-08-24 02:38:57 C 21 23 08.58 +44 38 50.0 V W46
2021-08-24 20:13:52 C 21 24 11.04 +44 48 45.3 V K85
2021-08-24 20:33:39 C 21 24 11.99 +44 48 57.4 V K85
2021-08-24 20:45:36 C 21 24 12.98 +44 49 04.4 V Z43
2021-08-24 20:56:02 C 21 24 13.07 +44 49 10.7 V K85
2021-08-24 20:57:15 C 21 24 13.56 +44 49 11.4 V Z43
2021-08-24 21:08:29 C 21 24 14.10 +44 49 18.0 V Z43
2021-08-24 21:19:42 C 21 24 14.64 +44 49 24.7 V Z43
2021-08-25 19:52:52 C 21 25 32.54 +45 00 56.9 V 089
2021-08-25 19:55:52 C 21 25 32.66 +45 00 58.5 V 089
2021-08-25 19:58:53 C 21 25 32.78 +45 00 59.7 V 089
2021-08-25 20:01:54 C 21 25 32.93 +45 01 01.5 V 089
2021-08-25 20:04:55 C 21 25 33.05 +45 01 02.9 V 089
2021-08-25 20:10:57 C 21 25 33.31 +45 01 06.5 V 089
2021-08-26 11:02:26 C 21 26 22.05 +45 08 05.4 V T05
2021-08-26 11:07:07 C 21 26 22.25 +45 08 07.3 V T05
2021-08-26 11:18:21 C 21 26 22.70 +45 08 11.3 V T05
2021-08-27 21:49:39 C 21 28 19.52 +45 20 55.9 V 089
2021-08-27 21:51:09 C 21 28 21.21 +45 20 54.5 V Z43
2021-08-27 21:52:40 C 21 28 19.67 +45 20 56.9 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)