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
2021-07-07 19:44:56 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:45:56 V 18 32 28.63 -57 16 55.5 15.0 V 247
2021-07-07 19:45:56 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:46:55 V 18 32 28.87 -57 16 51.6 15.1 V 247
2021-07-07 19:46:55 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:47:55 V 18 32 29.09 -57 16 47.4 15.0 V 247
2021-07-07 19:47:55 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:48:54 V 18 32 29.28 -57 16 43.1 15.0 V 247
2021-07-07 19:48:54 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:49:54 V 18 32 29.54 -57 16 39.9 15.0 V 247
2021-07-07 19:49:54 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:50:54 V 18 32 29.80 -57 16 35.5 15.0 V 247
2021-07-07 19:50:54 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:51:53 V 18 32 30.04 -57 16 31.3 14.9 V 247
2021-07-07 19:51:53 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:52:53 V 18 32 30.23 -57 16 27.6 14.9 V 247
2021-07-07 19:52:53 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:53:52 V 18 32 30.44 -57 16 23.0 15.1 V 247
2021-07-07 19:53:52 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:56:51 V 18 32 31.11 -57 16 12.4 14.9 V 247
2021-07-07 19:56:51 v 1 055.57633 -21.19304 – – 247
2021-07-07 19:57:51 V 18 32 31.34 -57 16 07.7 14.9 V 247
2021-07-07 19:57:51 v 1 055.57633 -21.19304 – – 247
2021-07-08 17:43:32 C 18 38 30.94 -55 43 46.6 – q L68
2021-07-08 17:49:40 C 18 38 32.36 -55 43 19.9 – q L68
2021-07-08 17:54:31 C 18 38 33.64 -55 42 59.8 – q L68
2021-07-09 02:08:22 C 18 40 39.42 -55 06 52.4 – q Y00
2021-07-09 02:09:44 C 18 40 39.88 -55 06 46.2 – q Y00
2021-07-09 02:11:17 C 18 40 40.19 -55 06 36.2 – q Y00
2021-07-09 16:41:42 C 18 44 40.88 -53 57 03.4 – q L68
2021-07-09 16:47:38 C 18 44 42.41 -53 56 36.3 – q L68
2021-07-09 16:54:59 C 18 44 44.28 -53 56 02.5 – q L68
2021-07-09 17:03:01 C 18 44 46.33 -53 55 25.7 – q L68
2021-07-10 06:06:13 C 18 47 58.67 -52 50 40.1 – q Y00
2021-07-10 06:07:56 C 18 47 59.17 -52 50 29.5 – q Y00
2021-07-10 06:09:18 C 18 47 59.54 -52 50 21.2 – q Y00
2021-07-13 01:32:54 C 19 05 46.09 -46 12 16.7 – q Y00
2021-07-13 01:34:28 C 19 05 46.47 -46 12 05.3 – q Y00
2021-07-13 01:35:54 C 19 05 46.79 -46 11 54.7 – q Y00
2021-07-15 19:40:44 V 19 22 10.65 -37 51 53.3 14.0 V 247
2021-07-15 19:40:44 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:41:44 V 19 22 10.84 -37 51 46.6 13.9 V 247
2021-07-15 19:41:44 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:42:43 V 19 22 11.03 -37 51 38.0 14.0 V 247
2021-07-15 19:42:43 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:43:43 V 19 22 11.22 -37 51 29.6 13.9 V 247
2021-07-15 19:43:43 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:44:43 V 19 22 11.43 -37 51 21.2 13.8 V 247
2021-07-15 19:44:43 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:45:42 V 19 22 11.61 -37 51 12.5 13.8 V 247
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)