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
2021-07-15 19:45:42 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:46:42 V 19 22 11.81 -37 51 04.7 13.8 V 247
2021-07-15 19:46:42 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:47:41 V 19 22 11.96 -37 50 57.3 13.8 V 247
2021-07-15 19:47:41 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:48:41 V 19 22 12.17 -37 50 48.2 13.8 V 247
2021-07-15 19:48:41 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:49:40 V 19 22 12.36 -37 50 40.4 13.8 V 247
2021-07-15 19:49:40 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:50:40 V 19 22 12.53 -37 50 32.4 13.8 V 247
2021-07-15 19:50:40 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:51:39 V 19 22 12.85 -37 50 22.5 14.2 V 247
2021-07-15 19:51:39 v 1 055.57608 -21.19267 – – 247
2021-07-15 19:54:38 V 19 22 13.45 -37 49 57.5 14.2 V 247
2021-07-15 19:54:38 v 1 055.57608 -21.19267 – – 247
2021-07-15 20:00:36 V 19 22 14.48 -37 49 07.4 13.3 V 247
2021-07-15 20:00:36 v 1 055.57608 -21.19267 – – 247
2021-07-15 20:02:35 V 19 22 14.95 -37 48 51.0 13.1 V 247
2021-07-15 20:02:35 v 1 055.57608 -21.19267 – – 247
2021-07-15 20:03:34 V 19 22 15.16 -37 48 42.0 13.1 V 247
2021-07-15 20:03:34 v 1 055.57608 -21.19267 – – 247
2021-07-15 20:08:32 V 19 22 16.08 -37 48 01.3 13.1 V 247
2021-07-15 20:08:32 v 1 055.57608 -21.19267 – – 247
2021-07-15 20:09:32 V 19 22 16.38 -37 47 53.4 13.1 V 247
2021-07-15 20:09:32 v 1 055.57608 -21.19267 – – 247
2021-07-15 20:13:30 V 19 22 17.18 -37 47 19.7 13.1 V 247
2021-07-15 20:13:30 v 1 055.57608 -21.19267 – – 247
2021-07-16 09:21:47 C 19 25 27.95 -35 55 36.3 – V T08
2021-07-16 09:24:26 C 19 25 28.47 -35 55 13.3 – V T08
2021-07-16 09:28:25 C 19 25 29.26 -35 54 38.8 – V T08
2021-07-16 09:35:43 C 19 25 30.70 -35 53 35.1 – V T08
2021-07-17 06:25:06 C 19 30 15.13 -32 44 36.7 – q Y00
2021-07-17 06:27:00 C 19 30 15.56 -32 44 18.9 – q Y00
2021-07-17 06:29:26 C 19 30 16.05 -32 43 55.9 – q Y00
2021-07-18 09:34:41 C 19 36 36.04 -28 27 28.5 – V T05
2021-07-18 09:37:21 C 19 36 36.53 -28 27 02.6 – V T05
2021-07-18 09:42:37 C 19 36 37.51 -28 26 11.1 – V T05
2021-07-18 10:11:04 C 19 36 42.78 -28 21 32.9 – V T05
2021-07-18 15:43:52 V 19 37 52.74 -27 25 09.9 13.1 V 247
2021-07-18 15:43:52 v 1 151.94304 -27.45579 – – 247
2021-07-18 15:44:32 V 19 37 52.88 -27 25 02.9 13.1 V 247
2021-07-18 15:44:32 v 1 151.94304 -27.45579 – – 247
2021-07-18 15:45:12 V 19 37 52.98 -27 24 56.1 13.1 V 247
2021-07-18 15:45:12 v 1 151.94304 -27.45579 – – 247
2021-07-18 15:45:51 V 19 37 53.12 -27 24 49.4 13.1 V 247
2021-07-18 15:45:51 v 1 151.94304 -27.45579 – – 247
2021-07-18 15:46:31 V 19 37 53.23 -27 24 43.4 13.1 V 247
2021-07-18 15:46:31 v 1 151.94304 -27.45579 – – 247
2021-07-18 15:47:11 V 19 37 53.36 -27 24 36.6 13.1 V 247
2021-07-18 15:47:11 v 1 151.94304 -27.45579 – – 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)