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
2021-08-03 18:43:59 S 20 43 14.282 +26 49 08.83 – V C57
2021-08-03 18:43:59 s 1 -202961.91 2 +193390.94 5650.0 – C57
2021-08-03 18:53:59 S 20 43 15.938 +26 49 58.66 – V C57
2021-08-03 18:53:59 s 1 -203038.77 9 +192750.33 900.0 – C57
2021-08-03 19:03:59 S 20 43 17.590 +26 50 48.52 – V C57
2021-08-03 19:03:59 s 1 -203114.41 8 +192108.55 2190.0 – C57
2021-08-03 19:23:59 S 20 43 20.880 +26 52 28.34 – V C57
2021-08-03 19:23:59 s 1 -203261.99 0 +190821.52 2820.0 – C57
2021-08-03 19:33:59 S 20 43 22.543 +26 53 18.46 – V C57
2021-08-03 19:33:59 s 1 -203333.91 1 +190176.27 2130.0 – C57
2021-08-03 19:43:59 S 20 43 24.194 +26 54 07.99 – V C57
2021-08-03 19:43:59 s 1 -203404.58 4 +189529.85 7400.0 – C57
2021-08-03 19:53:59 S 20 43 25.817 +26 54 57.96 – V C57
2021-08-03 19:53:59 s 1 -203474.00 1 +188882.26 8630.0 – C57
2021-08-03 20:03:59 S 20 43 27.427 +26 55 48.14 – V C57
2021-08-03 20:03:59 s 1 -203542.15 7 +188233.52 5790.0 – C57
2021-08-03 20:23:59 S 20 43 30.780 +26 57 28.08 – V C57
2021-08-03 20:23:59 s 1 -203674.66 8 +186932.54 7860.0 – C57
2021-08-03 20:43:59 S 20 43 34.058 +26 59 07.37 – V C57
2021-08-03 20:43:59 s 1 -203802.07 1 +185626.89 3460.0 – C57
2021-08-03 20:53:59 S 20 43 35.693 +26 59 56.98 – V C57
2021-08-03 20:53:59 s 1 -203863.84 4 +184972.32 50.0 – C57
2021-08-03 21:03:59 S 20 43 37.409 +27 00 47.27 – V C57
2021-08-03 21:03:59 s 1 -203924.32 3 +184316.59 2470.0 – C57
2021-08-03 21:13:59 S 20 43 38.988 +27 01 36.34 – V C57
2021-08-03 21:13:59 s 1 -203983.50 3 +183659.68 700.0 – C57
2021-08-03 21:23:59 S 20 43 40.699 +27 02 26.74 – V C57
2021-08-03 21:23:59 s 1 -204041.37 9 +183001.61 4720.0 – C57
2021-08-03 21:28:16 C 20 43 04.71 +27 45 39.6 – V 089
2021-08-03 21:31:35 C 20 43 05.04 +27 45 55.3 – V 089
2021-08-03 21:34:54 C 20 43 05.36 +27 46 10.7 – V 089
2021-08-03 21:38:13 C 20 43 05.66 +27 46 26.3 – V 089
2021-08-03 21:41:32 C 20 43 06.01 +27 46 42.0 – V 089
2021-08-03 21:43:59 S 20 43 43.882 +27 04 06.24 – V C57
2021-08-03 21:43:59 s 1 -204153.19 3 +181681.96 90.0 – C57
2021-08-03 21:44:51 C 20 43 06.30 +27 46 57.6 – V 089
2021-08-03 21:48:10 C 20 43 06.63 +27 47 13.4 – V 089
2021-08-03 21:51:29 C 20 43 06.95 +27 47 28.7 – V 089
2021-08-03 21:53:59 S 20 43 45.571 +27 04 55.96 – V C57
2021-08-03 21:53:59 s 1 -204207.12 0 +181020.38 1400.0 – C57
2021-08-03 21:54:48 C 20 43 07.28 +27 47 44.4 – V 089
2021-08-03 21:58:07 C 20 43 07.60 +27 47 59.9 – V 089
2021-08-03 22:03:59 S 20 43 47.227 +27 05 45.89 – V C57
2021-08-03 22:03:59 s 1 -204259.72 0 +180357.64 8430.0 – C57
2021-08-03 22:13:59 S 20 43 48.830 +27 06 35.71 – V C57
2021-08-03 22:13:59 s 1 -204310.98 6 +179693.72 1170.0 – C57
2021-08-03 22:23:59 S 20 43 50.453 +27 07 25.32 – V C57
2021-08-03 22:23:59 s 1 -204360.91 3 +179028.63 9590.0 – C57
2021-08-03 22:33:59 S 20 43 52.090 +27 08 14.82 – V C57
2021-08-03 22:33:59 s 1 -204409.49 5 +178362.37 3670.0 – 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)