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 21:53:44 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:54:07 V 20 27 29.42 +15 57 19.1 14.7 V 247
2021-07-29 21:54:07 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:54:44 V 20 27 28.50 +15 57 16.2 14.3 V 247
2021-07-29 21:54:44 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:56:06 V 20 27 29.65 +15 57 33.8 14.3 V 247
2021-07-29 21:56:06 v 1 006.70406 +43.66304 – – 247
2021-07-29 21:57:42 V 20 27 28.88 +15 57 37.5 14.5 V 247
2021-07-29 21:57:42 v 1 016.41060 +47.95355 – – 247
2021-07-29 21:59:43 C 20 27 28.88 +15 57 50.8 – X G02
2021-07-29 22:01:04 V 20 27 30.26 +15 58 10.2 14.8 V 247
2021-07-29 22:01:04 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:03:03 V 20 27 30.52 +15 58 24.6 14.0 V 247
2021-07-29 22:03:03 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:04:03 V 20 27 30.62 +15 58 32.3 13.7 V 247
2021-07-29 22:04:03 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:04:30 V 20 27 29.69 +15 58 27.8 15.2 V 247
2021-07-29 22:04:30 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:05:02 V 20 27 30.76 +15 58 39.2 13.5 V 247
2021-07-29 22:05:02 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:05:30 V 20 27 29.83 +15 58 35.1 14.6 V 247
2021-07-29 22:05:30 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:06:02 V 20 27 30.89 +15 58 46.7 13.7 V 247
2021-07-29 22:06:02 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:07:01 V 20 27 31.01 +15 58 53.8 13.9 V 247
2021-07-29 22:07:01 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:08:01 V 20 27 31.19 +15 59 00.0 14.1 V 247
2021-07-29 22:08:01 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:08:29 V 20 27 30.18 +15 58 56.0 14.7 V 247
2021-07-29 22:08:29 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:09:00 V 20 27 31.25 +15 59 08.2 14.0 V 247
2021-07-29 22:09:00 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:09:28 V 20 27 30.31 +15 59 04.0 14.3 V 247
2021-07-29 22:09:28 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:10:00 V 20 27 31.35 +15 59 15.5 14.4 V 247
2021-07-29 22:10:00 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:10:28 V 20 27 30.41 +15 59 11.0 14.5 V 247
2021-07-29 22:10:28 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:11:00 V 20 27 31.49 +15 59 23.0 14.7 V 247
2021-07-29 22:11:00 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:11:21 C 20 27 29.68 +15 59 23.7 – V 073
2021-07-29 22:11:27 V 20 27 30.55 +15 59 17.5 14.8 V 247
2021-07-29 22:11:27 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:11:59 V 20 27 31.60 +15 59 30.0 14.3 V 247
2021-07-29 22:11:59 v 1 006.70406 +43.66304 – – 247
2021-07-29 22:12:27 V 20 27 30.68 +15 59 25.6 14.6 V 247
2021-07-29 22:12:27 v 1 016.41060 +47.95355 – – 247
2021-07-29 22:12:57 C 20 27 30.53 +15 59 27.5 – X G02
2021-07-29 22:12:59 V 20 27 31.72 +15 59 37.2 14.3 V 247
2021-07-29 22:12:59 v 1 006.70406 +43.66304 – – 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)