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
2021-07-27 04:46:44 V 20 17 28.34 +07 12 03.4 14.5 V 247
2021-07-27 04:46:44 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:47:44 V 20 17 28.48 +07 12 12.3 14.5 V 247
2021-07-27 04:47:44 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:48:43 V 20 17 28.61 +07 12 21.8 14.3 V 247
2021-07-27 04:48:43 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:49:43 V 20 17 28.72 +07 12 28.4 13.8 V 247
2021-07-27 04:49:43 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:51:42 V 20 17 28.98 +07 12 46.4 13.8 V 247
2021-07-27 04:51:42 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:52:41 V 20 17 29.12 +07 12 55.7 13.9 V 247
2021-07-27 04:52:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:53:41 V 20 17 29.26 +07 13 05.0 14.1 V 247
2021-07-27 04:53:41 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:54:40 V 20 17 29.41 +07 13 13.7 13.9 V 247
2021-07-27 04:54:40 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:56:40 V 20 17 29.64 +07 13 30.0 14.1 V 247
2021-07-27 04:56:40 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:57:39 V 20 17 29.80 +07 13 39.9 14.0 V 247
2021-07-27 04:57:39 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:58:39 V 20 17 29.94 +07 13 48.4 13.7 V 247
2021-07-27 04:58:39 v 1 273.41734 +30.43474 – – 247
2021-07-27 04:59:38 V 20 17 30.05 +07 13 57.4 13.9 V 247
2021-07-27 04:59:38 v 1 273.41734 +30.43474 – – 247
2021-07-27 05:01:37 V 20 17 30.33 +07 14 15.7 13.9 V 247
2021-07-27 05:01:37 v 1 273.41734 +30.43474 – – 247
2021-07-27 05:10:58 V 20 17 31.52 +07 15 15.2 13.9 V 247
2021-07-27 05:10:58 v 1 272.10067 +43.08035 – – 247
2021-07-27 05:15:56 V 20 17 32.21 +07 16 00.2 13.8 V 247
2021-07-27 05:15:56 v 1 272.10067 +43.08035 – – 247
2021-07-27 05:24:52 V 20 17 33.42 +07 17 16.2 13.6 V 247
2021-07-27 05:24:52 v 1 272.10067 +43.08035 – – 247
2021-07-27 05:27:51 V 20 17 33.86 +07 17 42.7 13.9 V 247
2021-07-27 05:27:51 v 1 272.10067 +43.08035 – – 247
2021-07-27 05:33:53 C 20 17 35.06 +07 18 41.5 – V V93
2021-07-27 05:34:48 V 20 17 34.85 +07 18 46.9 13.8 V 247
2021-07-27 05:34:48 v 1 272.10067 +43.08035 – – 247
2021-07-27 05:36:47 V 20 17 35.10 +07 19 02.6 14.1 V 247
2021-07-27 05:36:47 v 1 272.10067 +43.08035 – – 247
2021-07-27 05:38:46 V 20 17 35.36 +07 19 21.3 13.8 V 247
2021-07-27 05:38:46 v 1 272.10067 +43.08035 – – 247
2021-07-27 06:38:57 C 20 17 43.88 +07 28 15.5 – V V93
2021-07-27 07:21:45 C 20 17 49.70 +07 34 31.8 – V V93
2021-07-27 09:47:30 V 20 18 21.58 +07 57 56.1 14.0 V 247
2021-07-27 09:47:30 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:48:25 V 20 18 21.69 +07 58 04.0 13.9 V 247
2021-07-27 09:48:25 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:49:21 V 20 18 21.83 +07 58 11.9 13.9 V 247
2021-07-27 09:49:21 v 1 151.94279 -27.45589 – – 247
2021-07-27 09:50:16 V 20 18 21.97 +07 58 20.4 13.9 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)