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
2021-08-01 12:38:17 V 20 36 05.67 +22 49 19.4 14.6 V 247
2021-08-01 12:38:17 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:38:26 V 20 36 06.52 +22 47 38.5 14.4 V 247
2021-08-01 12:38:26 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:39:17 V 20 36 05.77 +22 49 24.8 14.3 V 247
2021-08-01 12:39:17 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:39:25 V 20 36 06.66 +22 47 44.2 14.6 V 247
2021-08-01 12:39:25 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:40:16 V 20 36 05.85 +22 49 31.1 14.1 V 247
2021-08-01 12:40:16 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:40:25 V 20 36 06.75 +22 47 49.9 14.5 V 247
2021-08-01 12:40:25 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:41:16 V 20 36 05.93 +22 49 36.8 14.5 V 247
2021-08-01 12:41:16 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:41:24 V 20 36 06.85 +22 47 56.1 14.7 V 247
2021-08-01 12:41:24 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:42:24 V 20 36 06.95 +22 48 02.0 14.8 V 247
2021-08-01 12:42:24 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:43:15 V 20 36 06.14 +22 49 48.3 14.6 V 247
2021-08-01 12:43:15 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:43:23 V 20 36 07.06 +22 48 07.7 15.5 V 247
2021-08-01 12:43:23 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:43:59 S 20 34 00.967 +22 03 07.27 – V C57
2021-08-01 12:43:59 s 1 -133923.88 0 +343823.65 8980.0 – C57
2021-08-01 12:45:14 V 20 36 06.34 +22 50 00.3 14.5 V 247
2021-08-01 12:45:14 v 1 151.94278 -27.45579 – – 247
2021-08-01 12:52:59 V 20 36 08.08 +22 49 03.5 14.9 V 247
2021-08-01 12:52:59 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:53:58 V 20 36 08.21 +22 49 09.8 14.6 V 247
2021-08-01 12:53:58 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:53:59 S 20 34 02.664 +22 04 03.72 – V C57
2021-08-01 12:53:59 s 1 -134228.42 3 +343523.73 300.0 – C57
2021-08-01 12:54:58 V 20 36 08.31 +22 49 15.7 14.4 V 247
2021-08-01 12:54:58 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:55:57 V 20 36 08.40 +22 49 21.9 14.2 V 247
2021-08-01 12:55:57 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:56:57 V 20 36 08.48 +22 49 27.5 14.1 V 247
2021-08-01 12:56:57 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:57:57 V 20 36 08.62 +22 49 32.9 14.3 V 247
2021-08-01 12:57:57 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:58:56 V 20 36 08.73 +22 49 38.8 14.3 V 247
2021-08-01 12:58:56 v 1 140.20199 +36.17829 – – 247
2021-08-01 12:59:56 V 20 36 08.85 +22 49 44.6 14.8 V 247
2021-08-01 12:59:56 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:00:55 V 20 36 08.93 +22 49 50.4 15.1 V 247
2021-08-01 13:00:55 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:01:55 V 20 36 09.03 +22 49 56.4 15.4 V 247
2021-08-01 13:01:55 v 1 140.20199 +36.17829 – – 247
2021-08-01 13:03:59 S 20 34 04.399 +22 04 59.74 – V C57
2021-08-01 13:03:59 s 1 -134532.59 5 +343222.85 370.0 – C57
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)