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
2021-08-05 21:33:59 S 20 50 37.596 +30 59 37.61 – V C57
2021-08-05 21:33:59 s 1 -125046.09 9 -49170.566 350.0 – C57
2021-08-05 21:43:59 S 20 50 38.582 +31 00 29.23 – V C57
2021-08-05 21:43:59 s 1 -124196.81 8 -49992.502 7350.0 – C57
2021-08-05 21:53:59 S 20 50 39.617 +31 01 13.84 – V C57
2021-08-05 21:53:59 s 1 -123340.95 1 -50811.786 3800.0 – C57
2021-08-05 22:03:59 S 20 50 40.601 +31 02 07.58 – V C57
2021-08-05 22:03:59 s 1 -122478.46 8 -51628.343 9590.0 – C57
2021-08-05 22:13:59 S 20 50 41.489 +31 02 57.84 – V C57
2021-08-05 22:13:59 s 1 -121609.33 7 -52442.098 4640.0 – C57
2021-08-05 22:33:59 S 20 50 43.469 +31 04 39.22 – V C57
2021-08-05 22:33:59 s 1 -119851.00 9 -54060.887 2170.0 – C57
2021-08-05 22:43:59 S 20 50 44.362 +31 05 28.61 – V C57
2021-08-05 22:43:59 s 1 -118961.75 2 -54865.761 4480.0 – C57
2021-08-05 22:53:59 S 20 50 45.298 +31 06 20.27 – V C57
2021-08-05 22:53:59 s 1 -118065.72 8 -55667.514 5690.0 – C57
2021-08-05 23:03:59 S 20 50 46.183 +31 07 09.37 – V C57
2021-08-05 23:03:59 s 1 -117162.90 7 -56466.062 5730.0 – C57
2021-08-05 23:13:59 S 20 50 47.047 +31 07 59.30 – V C57
2021-08-05 23:13:59 s 1 -116253.26 1 -57261.321 4520.0 – C57
2021-08-05 23:23:59 S 20 50 47.858 +31 08 52.01 – V C57
2021-08-05 23:23:59 s 1 -115336.76 3 -58053.205 1970.0 – C57
2021-08-05 23:33:59 S 20 50 49.097 +31 09 30.96 – V C57
2021-08-05 23:33:59 s 1 -114413.38 6 -58841.626 8020.0 – C57
2021-08-05 23:43:59 S 20 50 50.002 +31 10 23.84 – V C57
2021-08-05 23:43:59 s 1 -113483.10 4 -59626.495 2580.0 – C57
2021-08-05 23:53:59 S 20 50 50.734 +31 11 21.62 – V C57
2021-08-05 23:53:59 s 1 -112545.89 0 -60407.723 5590.0 – C57
2021-08-06 00:03:59 S 20 50 51.612 +31 12 11.23 – V C57
2021-08-06 00:03:59 s 1 -111601.72 0 -61185.218 6970.0 – C57
2021-08-06 00:13:59 S 20 50 52.495 +31 13 03.00 – V C57
2021-08-06 00:13:59 s 1 -110650.57 0 -61958.886 6650.0 – C57
2021-08-06 00:23:59 S 20 50 53.364 +31 13 52.25 – V C57
2021-08-06 00:23:59 s 1 -109692.41 7 -62728.633 4580.0 – C57
2021-08-06 04:14:51 C 20 49 13.37 +31 38 01.6 – X W34
2021-08-06 04:25:40 C 20 49 14.28 +31 38 43.3 – X W34
2021-08-06 04:36:39 C 20 49 15.18 +31 39 25.5 – X W34
2021-08-06 22:33:39 V 20 51 07.87 +32 45 01.4 15.8 V 247
2021-08-06 22:33:39 v 1 011.16234 +45.34063 – – 247
2021-08-06 22:34:39 V 20 51 07.94 +32 45 04.9 15.3 V 247
2021-08-06 22:34:39 v 1 011.16234 +45.34063 – – 247
2021-08-06 22:35:38 V 20 51 08.03 +32 45 08.4 14.5 V 247
2021-08-06 22:35:38 v 1 011.16234 +45.34063 – – 247
2021-08-06 22:36:38 V 20 51 08.11 +32 45 12.0 14.1 V 247
2021-08-06 22:36:38 v 1 011.16234 +45.34063 – – 247
2021-08-06 22:37:37 V 20 51 08.19 +32 45 15.1 13.9 V 247
2021-08-06 22:37:37 v 1 011.16234 +45.34063 – – 247
2021-08-06 22:38:37 V 20 51 08.27 +32 45 18.6 13.9 V 247
2021-08-06 22:38:37 v 1 011.16234 +45.34063 – – 247
2021-08-06 22:39:36 V 20 51 08.38 +32 45 21.9 14.3 V 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)