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
2021-07-25 05:49:45 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:50:36 V 20 09 32.94 -00 08 06.3 13.7 V 247
2021-07-25 05:50:36 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:51:28 V 20 09 33.08 -00 07 57.5 13.9 V 247
2021-07-25 05:51:28 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:53:11 V 20 09 33.30 -00 07 41.6 13.0 V 247
2021-07-25 05:53:11 v 1 237.89517 +47.56307 – – 247
2021-07-25 05:58:05 V 20 09 34.66 -00 06 37.1 13.5 V 247
2021-07-25 05:58:05 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:08:01 V 20 09 36.18 -00 05 00.2 13.5 V 247
2021-07-25 06:08:01 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:08:52 V 20 09 36.31 -00 04 51.8 13.7 V 247
2021-07-25 06:08:52 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:10:36 V 20 09 36.55 -00 04 34.8 13.6 V 247
2021-07-25 06:10:36 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:11:27 V 20 09 36.68 -00 04 25.9 13.8 V 247
2021-07-25 06:11:27 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:12:19 V 20 09 36.81 -00 04 18.0 13.7 V 247
2021-07-25 06:12:19 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:14:02 V 20 09 37.08 -00 04 00.6 13.7 V 247
2021-07-25 06:14:02 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:14:10 V 20 09 36.64 -00 04 17.1 13.6 V 247
2021-07-25 06:14:10 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:14:54 V 20 09 37.19 -00 03 51.6 13.6 V 247
2021-07-25 06:14:54 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:14:57 V 20 09 36.76 -00 04 09.2 13.5 V 247
2021-07-25 06:14:57 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:15:45 V 20 09 36.89 -00 04 01.3 13.4 V 247
2021-07-25 06:15:45 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:16:33 V 20 09 37.01 -00 03 53.0 13.5 V 247
2021-07-25 06:16:33 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:17:04 C 20 09 31.38 -00 03 41.8 – V I22
2021-07-25 06:17:20 V 20 09 37.12 -00 03 46.3 13.5 V 247
2021-07-25 06:17:20 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:17:22 C 20 09 31.43 -00 03 38.9 – V I22
2021-07-25 06:17:41 C 20 09 31.48 -00 03 35.8 – V I22
2021-07-25 06:18:00 C 20 09 31.53 -00 03 32.7 – V I22
2021-07-25 06:18:08 V 20 09 37.27 -00 03 37.6 13.7 V 247
2021-07-25 06:18:08 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:18:19 C 20 09 31.58 -00 03 29.6 – V I22
2021-07-25 06:18:20 V 20 09 37.71 -00 03 18.6 14.0 V 247
2021-07-25 06:18:20 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:18:38 C 20 09 31.64 -00 03 26.7 – V I22
2021-07-25 06:18:55 V 20 09 37.37 -00 03 30.4 13.6 V 247
2021-07-25 06:18:55 v 1 236.86643 +49.13905 – – 247
2021-07-25 06:18:57 C 20 09 31.67 -00 03 23.5 – V I22
2021-07-25 06:19:12 V 20 09 37.84 -00 03 09.2 13.8 V 247
2021-07-25 06:19:12 v 1 238.27262 +37.68709 – – 247
2021-07-25 06:19:16 C 20 09 31.73 -00 03 20.1 – V I22
2021-07-25 06:19:35 C 20 09 31.76 -00 03 17.3 – V I22
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)