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
2021-07-28 05:25:24 V 20 21 25.42 +10 42 32.4 14.1 V 247
2021-07-28 05:25:24 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:26:24 V 20 21 25.56 +10 42 40.8 14.1 V 247
2021-07-28 05:26:24 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:27:23 V 20 21 25.70 +10 42 49.1 14.0 V 247
2021-07-28 05:27:23 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:28:23 V 20 21 25.83 +10 42 57.7 14.0 V 247
2021-07-28 05:28:23 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:29:22 V 20 21 25.97 +10 43 06.0 13.9 V 247
2021-07-28 05:29:22 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:31:21 V 20 21 26.20 +10 43 21.2 13.8 V 247
2021-07-28 05:31:21 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:32:21 V 20 21 26.37 +10 43 29.8 13.9 V 247
2021-07-28 05:32:21 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:34:20 V 20 21 26.64 +10 43 47.4 14.0 V 247
2021-07-28 05:34:20 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:35:20 V 20 21 26.77 +10 43 54.8 13.9 V 247
2021-07-28 05:35:20 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:36:19 V 20 21 26.92 +10 44 03.4 13.8 V 247
2021-07-28 05:36:19 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:38:18 V 20 21 27.21 +10 44 20.0 13.8 V 247
2021-07-28 05:38:18 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:39:18 V 20 21 27.35 +10 44 27.9 13.8 V 247
2021-07-28 05:39:18 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:40:17 V 20 21 27.46 +10 44 36.5 13.9 V 247
2021-07-28 05:40:17 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:41:17 V 20 21 27.55 +10 44 43.2 14.0 V 247
2021-07-28 05:41:17 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:43:16 V 20 21 27.87 +10 45 01.9 14.1 V 247
2021-07-28 05:43:16 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:44:16 V 20 21 27.99 +10 45 08.9 14.0 V 247
2021-07-28 05:44:16 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:46:15 V 20 21 28.25 +10 45 25.2 13.7 V 247
2021-07-28 05:46:15 v 1 237.89519 +47.56303 – – 247
2021-07-28 05:47:14 V 20 21 28.36 +10 45 32.7 13.7 V 247
2021-07-28 05:47:14 v 1 237.89519 +47.56303 – – 247
2021-07-28 19:53:45 C 20 23 34.93 +12 39 56.8 – V 186
2021-07-28 19:54:18 C 20 23 34.98 +12 40 01.2 – V 186
2021-07-28 21:16:13 C 20 23 45.34 +12 50 45.9 – V 186
2021-07-28 21:16:45 C 20 23 45.41 +12 50 50.2 – V 186
2021-07-28 21:32:47 C 20 23 50.97 +12 52 45.0 – V 089
2021-07-28 21:36:05 C 20 23 51.39 +12 53 10.9 – V 089
2021-07-28 21:39:23 C 20 23 51.81 +12 53 37.2 – V 089
2021-07-28 21:42:41 C 20 23 52.23 +12 54 03.1 – V 089
2021-07-28 21:45:59 C 20 23 52.65 +12 54 28.9 – V 089
2021-07-28 21:49:17 C 20 23 53.07 +12 54 55.1 – V 089
2021-07-28 21:52:35 C 20 23 53.50 +12 55 21.2 – V 089
2021-07-28 21:55:53 C 20 23 53.92 +12 55 47.1 – V 089
2021-07-28 21:59:11 C 20 23 54.35 +12 56 12.7 – V 089
2021-07-28 22:02:29 C 20 23 54.77 +12 56 39.1 – V 089
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)