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
2021-08-11 19:53:59 S 20 57 39.655 +37 57 04.86 – V C57
2021-08-11 19:53:59 s 1 +61296.498 0 +365162.55 4570.0 – C57
2021-08-11 20:03:59 S 20 57 40.510 +37 57 24.98 – V C57
2021-08-11 20:03:59 s 1 +60939.418 0 +365378.05 2710.0 – C57
2021-08-11 20:13:59 S 20 57 41.503 +37 57 42.55 – V C57
2021-08-11 20:13:59 s 1 +60582.169 0 +365592.53 400.0 – C57
2021-08-11 20:43:59 S 20 57 44.467 +37 58 39.58 – V C57
2021-08-11 20:43:59 s 1 +59509.419 0 +366229.77 740.0 – C57
2021-08-11 20:53:59 S 20 57 45.410 +37 58 58.62 – V C57
2021-08-11 20:53:59 s 1 +59151.505 0 +366440.12 6630.0 – C57
2021-08-11 21:03:59 S 20 57 46.486 +37 59 18.60 – V C57
2021-08-11 21:03:59 s 1 +58793.428 0 +366649.44 2070.0 – C57
2021-08-11 21:13:59 S 20 57 47.431 +37 59 37.57 – V C57
2021-08-11 21:13:59 s 1 +58435.188 0 +366857.74 7070.0 – C57
2021-08-11 21:23:22 C 21 02 17.56 +38 21 26.6 – V 089
2021-08-11 21:23:59 S 20 57 48.398 +37 59 55.50 – V C57
2021-08-11 21:23:59 s 1 +58076.788 0 +367065.00 1640.0 – C57
2021-08-11 21:30:00 C 21 02 18.03 +38 21 41.3 – V 089
2021-08-11 21:33:59 S 20 57 49.370 +38 00 14.22 – V C57
2021-08-11 21:33:59 s 1 +57718.228 0 +367271.24 5780.0 – C57
2021-08-11 21:36:39 C 21 02 18.50 +38 21 56.2 – V 089
2021-08-11 21:53:59 S 20 57 51.367 +38 00 52.06 – V C57
2021-08-11 21:53:59 s 1 +57000.634 0 +367680.63 2780.0 – C57
2021-08-11 22:03:59 S 20 57 52.380 +38 01 09.16 – V C57
2021-08-11 22:03:59 s 1 +56641.602 0 +367883.79 5640.0 – C57
2021-08-11 22:13:59 S 20 57 53.350 +38 01 29.64 – V C57
2021-08-11 22:13:59 s 1 +56282.416 0 +368085.93 8100.0 – C57
2021-08-11 22:23:59 S 20 57 54.182 +38 01 48.65 – V C57
2021-08-11 22:23:59 s 1 +55923.075 0 +368287.04 130.0 – C57
2021-08-11 23:03:59 S 20 57 58.265 +38 03 03.49 – V C57
2021-08-11 23:03:59 s 1 +54484.199 0 +369081.24 4230.0 – C57
2021-08-11 23:13:59 S 20 57 59.261 +38 03 23.69 – V C57
2021-08-11 23:13:59 s 1 +54124.107 0 +369277.24 4250.0 – C57
2021-08-13 20:41:06 C 21 06 14.24 +39 57 06.7 – V L40
2021-08-13 20:45:37 C 21 06 14.55 +39 57 15.2 – V L40
2021-08-13 20:51:52 C 21 06 14.97 +39 57 27.2 – V L40
2021-08-13 21:56:57 C 21 06 17.65 +39 59 33.8 – V 089
2021-08-13 22:00:16 C 21 06 17.91 +39 59 39.8 – V 089
2021-08-13 22:03:35 C 21 06 18.09 +39 59 46.0 – V 089
2021-08-13 22:13:32 C 21 06 18.77 +40 00 04.0 – V 089
2021-08-13 22:16:51 C 21 06 18.94 +40 00 09.8 – V 089
2021-08-13 22:20:09 C 21 06 19.15 +40 00 15.8 – V 089
2021-08-13 22:23:27 C 21 06 19.37 +40 00 21.7 – V 089
2021-08-13 22:26:45 C 21 06 19.59 +40 00 27.8 – V 089
2021-08-14 20:18:08 C 21 08 05.73 +40 38 44.8 – V K73
2021-08-14 20:22:42 C 21 08 06.05 +40 38 53.0 – V K73
2021-08-14 20:29:26 C 21 08 06.44 +40 39 04.6 – V K73
2021-08-14 20:33:58 C 21 08 06.72 +40 39 12.4 – V K73
2021-08-14 20:52:05 C 21 08 08.11 +40 39 31.4 – V K85
2021-08-14 21:13:01 C 21 08 08.01 +40 40 15.0 – V 089
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)