IAA RAS IAA Minor Planet Database

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
2021-08-27 21:55:41 C 21 28 19.78 +45 20 57.7 – V 089
2021-08-27 21:58:42 C 21 28 19.92 +45 20 58.7 – V 089
2021-08-27 22:01:43 C 21 28 20.04 +45 20 59.5 – V 089
2021-08-27 22:04:44 C 21 28 20.19 +45 21 00.6 – V 089
2021-08-27 22:05:07 C 21 28 21.82 +45 20 59.4 – V Z43
2021-08-27 22:07:45 C 21 28 20.33 +45 21 01.6 – V 089
2021-08-27 22:10:46 C 21 28 20.45 +45 21 02.6 – V 089
2021-08-27 22:13:47 C 21 28 20.58 +45 21 03.1 – V 089
2021-08-27 22:18:40 C 21 28 22.41 +45 21 04.2 – V Z43
2021-08-27 22:30:09 C 21 28 22.91 +45 21 08.4 – V Z43
2021-08-29 21:45:13 C 21 30 56.86 +45 33 37.9 – V Z43
2021-08-29 21:55:08 C 21 30 57.27 +45 33 40.2 – V Z43
2021-08-29 22:07:07 C 21 30 57.79 +45 33 42.9 – V Z43
2021-08-29 22:15:16 C 21 30 58.15 +45 33 45.0 – V Z43
2021-08-30 02:01:22 C 21 31 07.20 +45 34 24.2 – V L63
2021-08-30 02:13:02 C 21 31 07.74 +45 34 25.5 – V L63
2021-08-30 02:24:41 C 21 31 08.30 +45 34 27.0 – V L63
2021-08-31 20:33:52 C 21 33 23.75 +45 40 38.0 – V 089
2021-08-31 20:36:55 C 21 33 23.85 +45 40 38.2 – V 089
2021-08-31 20:39:59 C 21 33 23.99 +45 40 38.8 – V 089
2021-08-31 20:43:05 C 21 33 24.11 +45 40 39.0 – V 089
2021-08-31 20:46:12 C 21 33 24.25 +45 40 39.1 – V 089
2021-08-31 20:52:22 C 21 33 24.50 +45 40 39.8 – V 089
2021-08-31 21:21:04 C 21 33 25.64 +45 40 42.2 – V 089
2021-08-31 21:24:05 C 21 33 25.77 +45 40 42.6 – V 089
2021-08-31 21:27:06 C 21 33 25.91 +45 40 42.7 – V 089
2021-09-01 10:40:42 C 21 34 06.15 +45 42 01.2 – V T08
2021-09-01 10:46:03 C 21 34 06.34 +45 42 01.4 – V T08
2021-09-01 10:54:05 C 21 34 06.64 +45 42 01.5 – V T08
2021-09-01 11:08:41 C 21 34 07.20 +45 42 01.7 – V T08
2021-09-01 21:47:19 C 21 34 42.52 +45 42 17.4 – V Z43
2021-09-01 21:57:56 C 21 34 42.94 +45 42 18.3 – V Z43
2021-09-01 22:08:04 C 21 34 43.35 +45 42 19.0 – V Z43
2021-09-01 22:18:33 C 21 34 43.81 +45 42 19.1 – V Z43
2021-09-02 20:43:11 C 21 35 53.05 +45 42 37.2 – V K85
2021-09-02 20:53:57 C 21 35 53.49 +45 42 37.5 – V K85
2021-09-02 21:06:57 C 21 35 54.05 +45 42 37.7 – V K85
2021-09-02 21:57:28 B 21 35 55.92 +45 42 37.8 – q D15
2021-09-02 22:23:57 B 21 35 56.99 +45 42 37.7 – q D15
2021-09-02 22:43:45 B 21 35 57.80 +45 42 37.1 – q D15
2021-09-03 20:23:01 C 21 37 04.26 +45 41 56.5 – V 089
2021-09-03 20:26:03 C 21 37 04.37 +45 41 56.4 – V 089
2021-09-03 20:29:05 C 21 37 04.47 +45 41 55.9 – V 089
2021-09-03 20:30:53 C 21 37 05.52 +45 41 51.8 – V K85
2021-09-03 20:32:10 C 21 37 04.61 +45 41 56.1 – V 089
2021-09-03 20:35:16 C 21 37 04.74 +45 41 55.8 – V 089
2021-09-03 20:48:52 C 21 37 06.29 +45 41 51.5 – V K85
2021-09-03 21:46:52 B 21 37 08.45 +45 41 49.2 – q D15
2021-09-03 22:00:05 B 21 37 09.01 +45 41 48.7 – q D15
2021-09-03 22:15:23 B 21 37 09.61 +45 41 47.5 – q D15
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)