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
2021-07-30 05:35:47 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:36:46 V 20 28 36.89 +16 52 31.8 14.2 V 247
2021-07-30 05:36:46 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:37:46 V 20 28 36.98 +16 52 40.2 13.8 V 247
2021-07-30 05:37:46 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:38:45 V 20 28 37.11 +16 52 45.2 13.9 V 247
2021-07-30 05:38:45 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:39:45 V 20 28 37.26 +16 52 53.5 13.9 V 247
2021-07-30 05:39:45 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:40:45 V 20 28 37.40 +16 53 00.7 14.3 V 247
2021-07-30 05:40:45 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:41:44 V 20 28 37.50 +16 53 07.7 14.5 V 247
2021-07-30 05:41:44 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:42:44 V 20 28 37.65 +16 53 14.6 14.4 V 247
2021-07-30 05:42:44 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:43:43 V 20 28 37.76 +16 53 21.7 14.4 V 247
2021-07-30 05:43:43 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:44:43 V 20 28 37.89 +16 53 29.1 14.5 V 247
2021-07-30 05:44:43 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:45:42 V 20 28 38.01 +16 53 36.3 14.3 V 247
2021-07-30 05:45:42 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:46:42 V 20 28 38.15 +16 53 43.5 14.2 V 247
2021-07-30 05:46:42 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:47:42 V 20 28 38.24 +16 53 49.8 14.0 V 247
2021-07-30 05:47:42 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:48:41 V 20 28 38.36 +16 53 57.0 14.3 V 247
2021-07-30 05:48:41 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:49:41 V 20 28 38.52 +16 54 04.1 14.5 V 247
2021-07-30 05:49:41 v 1 237.89522 +47.56306 – – 247
2021-07-30 05:50:40 V 20 28 38.63 +16 54 11.5 14.7 V 247
2021-07-30 05:50:40 v 1 237.89522 +47.56306 – – 247
2021-07-30 11:25:33 C 20 29 21.43 +17 34 14.4 – V T08
2021-07-30 11:31:05 C 20 29 22.05 +17 34 52.6 – V T08
2021-07-30 12:00:42 C 20 29 25.38 +17 38 16.7 – V T08
2021-07-30 12:22:20 C 20 29 27.85 +17 40 45.4 – V T08
2021-07-30 17:15:44 C 20 30 15.98 +18 13 44.7 – V 186
2021-07-30 17:16:46 C 20 30 16.10 +18 13 52.3 – V 186
2021-07-30 21:14:19 C 20 30 43.51 +18 40 40.5 – V 186
2021-07-30 21:15:21 C 20 30 43.65 +18 40 48.2 – V 186
2021-07-30 21:31:49 C 20 30 48.90 +18 42 28.0 – V 089
2021-07-30 21:35:08 C 20 30 49.28 +18 42 50.2 – V 089
2021-07-30 21:38:26 C 20 30 49.67 +18 43 12.5 – V 089
2021-07-30 21:41:44 C 20 30 50.05 +18 43 34.7 – V 089
2021-07-30 21:43:20 V 20 30 52.88 +18 43 42.7 13.7 V 247
2021-07-30 21:43:20 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:44:19 V 20 30 53.01 +18 43 49.8 15.1 V 247
2021-07-30 21:44:19 v 1 000.64801 +45.99236 – – 247
2021-07-30 21:45:02 C 20 30 50.43 +18 43 56.6 – V 089
2021-07-30 21:45:19 V 20 30 53.11 +18 43 55.7 15.0 V 247
2021-07-30 21:45:19 v 1 000.64801 +45.99236 – – 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)