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
2021-11-28 03:36:23 C 23 50 45.77 +25 54 36.5 V 703
2021-11-28 03:51:46 C 23 50 46.89 +25 54 31.2 V 703
2021-11-28 03:59:28 C 23 50 47.54 +25 54 27.7 V 703
2021-11-30 02:38:29 C 23 54 27.38 +25 39 14.1 V 703
2021-11-30 02:46:47 C 23 54 27.91 +25 39 12.2 V 703
2021-11-30 02:55:04 C 23 54 28.52 +25 39 08.8 V 703
2021-11-30 03:03:24 C 23 54 29.21 +25 39 06.7 V 703
2021-12-08 02:33:24 C 00 09 36.57 +24 47 02.0 V G96
2021-12-08 02:41:42 C 00 09 37.16 +24 46 59.8 V G96
2021-12-08 02:49:57 C 00 09 37.83 +24 46 57.9 V G96
2021-12-08 02:58:14 C 00 09 38.49 +24 46 56.1 V G96
2021-12-08 03:08:03 C 00 09 39.20 +24 46 53.5 V G96
2021-12-08 03:16:16 C 00 09 39.87 +24 46 51.4 V G96
2021-12-08 03:24:29 C 00 09 40.50 +24 46 50.0 V G96
2021-12-08 03:32:43 C 00 09 41.10 +24 46 48.2 V G96
2023-01-23 10:14:58 C 09 27 01.567 +08 18 52.30 U F52
2023-01-23 10:32:25 C 09 27 00.669 +08 18 53.05 U F52
2023-01-23 11:07:37 C 09 26 58.879 +08 18 54.75 U F52
2024-12-06 09:50:39 C 06 23 06.125 +35 05 07.97 X F51
2024-12-06 10:06:48 C 06 23 04.992 +35 05 06.79 X F51
2024-12-06 10:23:03 C 06 23 03.862 +35 05 05.54 X F51
2024-12-06 10:39:15 C 06 23 02.737 +35 05 04.37 X F51
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)