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 22:27:20 V 20 27 32.49 +16 01 13.9 14.1 V 247
2021-07-29 22:27:20 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:29:20 V 20 27 32.72 +16 01 28.0 14.9 V 247
2021-07-29 22:29:20 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:30:19 V 20 27 32.84 +16 01 34.8 14.8 V 247
2021-07-29 22:30:19 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:31:19 V 20 27 32.98 +16 01 42.3 14.6 V 247
2021-07-29 22:31:19 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:32:18 V 20 27 33.10 +16 01 49.6 14.6 V 247
2021-07-29 22:32:18 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:33:18 V 20 27 33.24 +16 01 56.9 14.5 V 247
2021-07-29 22:33:18 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:34:17 V 20 27 33.35 +16 02 05.2 14.8 V 247
2021-07-29 22:34:17 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:35:17 V 20 27 33.47 +16 02 11.3 14.4 V 247
2021-07-29 22:35:17 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:37:16 V 20 27 33.70 +16 02 25.8 14.7 V 247
2021-07-29 22:37:16 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:38:16 V 20 27 33.84 +16 02 33.2 14.3 V 247
2021-07-29 22:38:16 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:42:48 C 20 27 33.49 +16 03 11.9 – V 073
2021-07-29 22:43:27 V 20 27 34.48 +16 03 11.1 14.5 V 247
2021-07-29 22:43:27 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:44:26 V 20 27 34.58 +16 03 18.4 14.5 V 247
2021-07-29 22:44:26 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:45:26 V 20 27 34.68 +16 03 24.9 14.1 V 247
2021-07-29 22:45:26 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:46:25 V 20 27 34.82 +16 03 32.1 13.9 V 247
2021-07-29 22:46:25 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:47:25 V 20 27 34.92 +16 03 39.3 14.1 V 247
2021-07-29 22:47:25 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:48:24 V 20 27 35.06 +16 03 46.9 14.6 V 247
2021-07-29 22:48:24 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:49:24 V 20 27 35.17 +16 03 53.6 15.1 V 247
2021-07-29 22:49:24 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:50:24 V 20 27 35.30 +16 04 01.4 14.9 V 247
2021-07-29 22:50:24 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:51:23 V 20 27 35.42 +16 04 08.6 15.1 V 247
2021-07-29 22:51:23 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:53:22 V 20 27 35.66 +16 04 23.0 15.0 V 247
2021-07-29 22:53:22 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:54:22 V 20 27 35.77 +16 04 30.3 14.8 V 247
2021-07-29 22:54:22 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:55:21 V 20 27 35.88 +16 04 36.7 14.4 V 247
2021-07-29 22:55:21 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:56:21 V 20 27 36.00 +16 04 44.6 14.4 V 247
2021-07-29 22:56:21 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:57:21 V 20 27 36.14 +16 04 51.5 14.4 V 247
2021-07-29 22:57:21 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:58:20 V 20 27 36.29 +16 04 58.5 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)