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 02:01:34 C 20 24 34.11 +13 27 47.1 – V I22
2021-07-29 02:01:53 C 20 24 34.15 +13 27 49.7 – V I22
2021-07-29 02:02:12 C 20 24 34.21 +13 27 52.2 – V I22
2021-07-29 05:14:06 V 20 25 03.47 +13 52 24.5 14.5 V 247
2021-07-29 05:14:06 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:15:05 V 20 25 03.58 +13 52 31.8 13.8 V 247
2021-07-29 05:15:05 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:16:05 V 20 25 03.81 +13 52 40.2 13.4 V 247
2021-07-29 05:16:05 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:18:04 V 20 25 04.04 +13 52 55.5 13.4 V 247
2021-07-29 05:18:04 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:19:04 V 20 25 04.14 +13 53 03.6 14.0 V 247
2021-07-29 05:19:04 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:20:03 V 20 25 04.30 +13 53 10.0 14.6 V 247
2021-07-29 05:20:03 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:21:03 V 20 25 04.41 +13 53 18.1 14.4 V 247
2021-07-29 05:21:03 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:22:02 V 20 25 04.54 +13 53 26.0 14.2 V 247
2021-07-29 05:22:02 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:23:02 V 20 25 04.69 +13 53 32.3 14.2 V 247
2021-07-29 05:23:02 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:24:02 V 20 25 04.82 +13 53 41.2 13.9 V 247
2021-07-29 05:24:02 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:25:01 V 20 25 04.96 +13 53 49.7 14.2 V 247
2021-07-29 05:25:01 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:26:01 V 20 25 05.07 +13 53 55.8 14.0 V 247
2021-07-29 05:26:01 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:27:00 V 20 25 05.23 +13 54 03.7 14.1 V 247
2021-07-29 05:27:00 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:28:00 V 20 25 05.34 +13 54 11.6 14.0 V 247
2021-07-29 05:28:00 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:28:59 V 20 25 05.48 +13 54 20.1 14.1 V 247
2021-07-29 05:28:59 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:29:59 V 20 25 05.59 +13 54 28.0 14.3 V 247
2021-07-29 05:29:59 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:31:58 V 20 25 05.88 +13 54 43.0 14.1 V 247
2021-07-29 05:31:58 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:32:58 V 20 25 05.99 +13 54 49.1 13.9 V 247
2021-07-29 05:32:58 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:34:57 V 20 25 06.26 +13 55 06.4 14.1 V 247
2021-07-29 05:34:57 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:35:56 V 20 25 06.42 +13 55 13.9 14.2 V 247
2021-07-29 05:35:56 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:36:56 V 20 25 06.50 +13 55 21.1 14.2 V 247
2021-07-29 05:36:56 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:37:56 V 20 25 06.65 +13 55 28.5 14.6 V 247
2021-07-29 05:37:56 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:38:55 V 20 25 06.77 +13 55 36.9 14.0 V 247
2021-07-29 05:38:55 v 1 236.86566 +49.13793 – – 247
2021-07-29 05:39:55 V 20 25 06.93 +13 55 43.8 14.1 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)