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
2021-07-29 20:27:36 C 20 27 16.99 +15 46 45.1 – V 073
2021-07-29 20:37:04 C 20 27 18.60 +15 50 10.6 – q L68
2021-07-29 20:45:52 V 20 27 20.88 +15 48 58.1 15.0 V 247
2021-07-29 20:45:52 v 1 006.70406 +43.66304 – – 247
2021-07-29 20:46:51 V 20 27 21.02 +15 49 05.6 14.4 V 247
2021-07-29 20:46:51 v 1 006.70406 +43.66304 – – 247
2021-07-29 20:47:51 V 20 27 21.15 +15 49 12.7 14.2 V 247
2021-07-29 20:47:51 v 1 006.70406 +43.66304 – – 247
2021-07-29 20:50:50 V 20 27 21.48 +15 49 34.8 14.2 V 247
2021-07-29 20:50:50 v 1 006.70406 +43.66304 – – 247
2021-07-29 20:54:09 C 20 27 20.66 +15 52 16.0 – q L68
2021-07-29 20:54:48 V 20 27 21.98 +15 50 03.8 14.3 V 247
2021-07-29 20:54:48 v 1 006.70406 +43.66304 – – 247
2021-07-29 20:56:47 V 20 27 22.23 +15 50 19.0 14.1 V 247
2021-07-29 20:56:47 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:04:29 C 20 27 21.38 +15 51 08.8 – V L18
2021-07-29 21:04:43 C 20 27 21.41 +15 51 10.4 – V L18
2021-07-29 21:04:43 V 20 27 23.30 +15 51 16.8 13.9 V 247
2021-07-29 21:04:43 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:04:55 C 20 27 21.60 +15 51 19.2 – V 073
2021-07-29 21:04:57 C 20 27 21.44 +15 51 12.1 – V L18
2021-07-29 21:05:11 C 20 27 21.47 +15 51 14.0 – V L18
2021-07-29 21:05:25 C 20 27 21.51 +15 51 15.6 – V L18
2021-07-29 21:05:39 C 20 27 21.53 +15 51 17.4 – V L18
2021-07-29 21:05:43 V 20 27 23.41 +15 51 24.8 14.0 V 247
2021-07-29 21:05:43 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:05:53 C 20 27 21.56 +15 51 18.8 – V L18
2021-07-29 21:06:07 C 20 27 21.60 +15 51 20.6 – V L18
2021-07-29 21:06:21 C 20 27 21.63 +15 51 22.4 – V L18
2021-07-29 21:06:35 C 20 27 21.65 +15 51 24.1 – V L18
2021-07-29 21:06:43 V 20 27 23.53 +15 51 31.9 14.3 V 247
2021-07-29 21:06:43 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:06:49 C 20 27 21.68 +15 51 25.8 – V L18
2021-07-29 21:07:03 C 20 27 21.71 +15 51 27.5 – V L18
2021-07-29 21:07:17 C 20 27 21.74 +15 51 29.3 – V L18
2021-07-29 21:07:31 C 20 27 21.75 +15 51 30.8 – V L18
2021-07-29 21:07:42 V 20 27 23.65 +15 51 39.2 14.3 V 247
2021-07-29 21:07:42 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:07:45 C 20 27 21.78 +15 51 32.7 – V L18
2021-07-29 21:08:42 V 20 27 23.77 +15 51 46.1 14.3 V 247
2021-07-29 21:08:42 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:09:21 C 20 27 22.47 +15 54 07.5 – q L68
2021-07-29 21:09:41 V 20 27 23.88 +15 51 53.9 14.1 V 247
2021-07-29 21:09:41 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:10:41 V 20 27 24.05 +15 52 01.1 14.1 V 247
2021-07-29 21:10:41 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:11:40 V 20 27 24.14 +15 52 08.1 14.1 V 247
2021-07-29 21:11:40 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:12:01 C 20 27 23.81 +15 52 09.7 – V G17
2021-07-29 21:12:40 V 20 27 24.26 +15 52 15.1 14.2 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)