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
2021-10-21 06:58:29 C 22 42 47.343 +34 21 09.82 U F52
2021-10-21 07:16:01 C 22 42 48.455 +34 20 56.73 U F52
2021-10-21 07:33:31 C 22 42 49.569 +34 20 43.69 U F52
2021-10-24 05:00:12 C 22 47 40.26 +33 29 34.4 V 703
2021-10-24 05:07:50 C 22 47 40.75 +33 29 28.7 V 703
2021-10-24 05:15:29 C 22 47 41.26 +33 29 22.8 V 703
2021-10-24 05:23:08 C 22 47 41.78 +33 29 17.6 V 703
2021-10-24 08:17:05 C 22 47 54.03 +33 27 14.2 V T05
2021-10-24 08:21:43 C 22 47 54.25 +33 27 11.2 V T05
2021-10-24 08:58:45 C 22 47 56.75 +33 26 43.2 V T05
2021-10-24 09:07:23 C 22 47 57.29 +33 26 37.6 V T05
2021-10-25 04:36:21 C 22 49 20.22 +33 12 31.8 V G96
2021-10-25 04:43:47 C 22 49 20.72 +33 12 26.5 V G96
2021-10-25 04:51:13 C 22 49 21.21 +33 12 21.0 V G96
2021-10-25 04:58:39 C 22 49 21.69 +33 12 15.5 V G96
2021-10-30 03:46:32 C 22 57 52.14 +31 49 24.1 V 703
2021-10-30 03:55:17 C 22 57 52.78 +31 49 17.8 V 703
2021-10-30 04:03:55 C 22 57 53.25 +31 49 12.7 V 703
2021-10-30 04:12:30 C 22 57 53.82 +31 49 07.9 V 703
2021-10-30 08:36:43 C 22 58 12.65 +31 46 10.8 V T08
2021-10-30 09:09:20 C 22 58 14.85 +31 45 49.1 V T08
2021-10-30 09:37:40 C 22 58 16.81 +31 45 28.5 V T08
2021-10-30 09:58:07 C 22 58 18.14 +31 45 15.0 V T08
2021-10-30 14:38:43 C 22 58 38.87 +31 42 04.1 V D29
2021-10-30 15:01:38 C 22 58 40.47 +31 41 48.3 V D29
2021-10-30 15:24:33 C 22 58 42.04 +31 41 32.7 V D29
2021-11-01 09:03:16 C 23 01 44.13 +31 14 01.5 V T05
2021-11-01 09:07:55 C 23 01 44.43 +31 13 58.5 V T05
2021-11-01 09:37:09 C 23 01 46.47 +31 13 39.0 V T05
2021-11-01 09:45:05 C 23 01 47.11 +31 13 33.1 V T05
2021-11-02 03:24:19 C 23 03 05.46 +31 02 04.4 V 703
2021-11-02 03:34:56 C 23 03 06.11 +31 01 57.3 V 703
2021-11-02 03:56:54 C 23 03 07.75 +31 01 43.4 V 703
2021-11-03 07:46:56 C 23 05 10.24 +30 43 58.8 V T08
2021-11-03 07:51:35 C 23 05 10.64 +30 43 56.6 V T08
2021-11-03 08:05:57 C 23 05 11.58 +30 43 45.9 V T08
2021-11-03 08:28:36 C 23 05 13.21 +30 43 32.4 V T08
2021-11-05 03:11:04 C 23 08 23.39 +30 16 53.3 V G96
2021-11-05 03:18:34 C 23 08 23.92 +30 16 48.6 V G96
2021-11-05 03:26:05 C 23 08 24.44 +30 16 44.1 V G96
2021-11-05 03:33:39 C 23 08 24.98 +30 16 39.4 V G96
2021-11-08 03:07:31 C 23 13 45.93 +29 34 00.9 U I41
2021-11-08 03:55:22 C 23 13 49.34 +29 33 33.3 U I41
2021-11-08 04:59:25 C 23 13 53.93 +29 32 56.0 U I41
2021-11-08 06:41:17 C 23 14 01.26 +29 31 56.0 U I41
2021-11-08 07:42:15 C 23 14 05.70 +29 31 19.8 U I41
2021-11-12 07:46:36 C 23 21 22.225 +28 38 24.34 U F51
2021-11-12 08:03:03 C 23 21 23.420 +28 38 15.45 U F51
2021-11-12 08:19:30 C 23 21 24.618 +28 38 06.61 U F51
2021-11-12 08:36:01 C 23 21 25.822 +28 37 57.73 U 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)