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
2021-08-08 22:53:59 s 1 +172677.95 3 +175570.72 8070.0 – C57
2021-08-09 02:53:59 S 20 52 13.236 +35 38 28.14 – V C57
2021-08-09 02:53:59 s 1 +169968.73 9 +192840.95 4590.0 – C57
2021-08-09 04:23:59 S 20 52 18.854 +35 42 05.62 – V C57
2021-08-09 04:23:59 s 1 +168746.21 6 +199086.76 8880.0 – C57
2021-08-09 05:33:59 S 20 52 23.254 +35 44 53.81 – V C57
2021-08-09 05:33:59 s 1 +167723.11 0 +203859.04 940.0 – C57
2021-08-09 05:53:59 S 20 52 24.494 +35 45 41.76 – V C57
2021-08-09 05:53:59 s 1 +167419.56 0 +205208.90 5900.0 – C57
2021-08-09 06:03:59 S 20 52 25.238 +35 46 05.88 – V C57
2021-08-09 06:03:59 s 1 +167265.94 7 +205881.56 7790.0 – C57
2021-08-09 06:13:59 S 20 52 25.910 +35 46 29.75 – V C57
2021-08-09 06:13:59 s 1 +167111.11 7 +206552.71 5970.0 – C57
2021-08-09 06:23:59 S 20 52 26.390 +35 46 53.58 – V C57
2021-08-09 06:23:59 s 1 +166955.07 6 +207222.36 480.0 – C57
2021-08-09 07:53:59 S 20 52 32.465 +35 50 27.53 – V C57
2021-08-09 07:53:59 s 1 +165497.32 4 +213181.72 8710.0 – C57
2021-08-09 08:33:59 S 20 52 35.146 +35 52 02.03 – V C57
2021-08-09 08:33:59 s 1 +164819.35 2 +215791.57 3200.0 – C57
2021-08-09 09:43:59 S 20 52 39.910 +35 54 46.12 – V C57
2021-08-09 09:43:59 s 1 +163589.91 6 +220301.89 8100.0 – C57
2021-08-09 11:23:51 C 20 57 04.38 +35 57 13.9 – V T05
2021-08-09 11:37:41 C 20 57 05.36 +35 57 51.5 – V T05
2021-08-09 12:13:59 S 20 52 50.268 +36 00 36.79 – V C57
2021-08-09 12:13:59 s 1 +160779.41 3 +229725.66 9460.0 – C57
2021-08-09 12:24:19 C 20 57 08.70 +35 59 57.6 – V T05
2021-08-09 12:29:11 C 20 57 09.05 +36 00 10.6 – V T05
2021-08-09 13:43:59 S 20 52 56.702 +36 04 05.84 – V C57
2021-08-09 13:43:59 s 1 +158982.26 5 +235225.34 580.0 – C57
2021-08-09 20:19:18 C 20 57 58.01 +36 21 03.6 – X G02
2021-08-09 20:33:58 C 20 57 59.14 +36 21 44.0 – X G02
2021-08-09 20:49:05 C 20 58 00.32 +36 22 25.6 – X G02
2021-08-09 20:49:31 C 20 57 59.55 +36 22 32.2 – V 089
2021-08-09 20:52:50 C 20 57 59.78 +36 22 40.8 – V 089
2021-08-09 20:56:09 C 20 58 00.02 +36 22 50.0 – V 089
2021-08-09 20:59:28 C 20 58 00.28 +36 22 58.6 – V 089
2021-08-09 21:02:47 C 20 58 00.54 +36 23 07.8 – V 089
2021-08-09 21:09:25 C 20 58 01.06 +36 23 24.9 – V 089
2021-08-09 21:12:44 C 20 58 01.28 +36 23 34.8 – V 089
2021-08-09 21:19:22 C 20 58 01.76 +36 23 52.7 – V 089
2021-08-09 21:33:59 S 20 53 31.805 +36 21 53.39 – V C57
2021-08-09 21:33:59 s 1 +148426.14 9 +262096.61 340.0 – C57
2021-08-09 21:43:59 S 20 53 32.508 +36 22 15.85 – V C57
2021-08-09 21:43:59 s 1 +148182.00 7 +262635.54 8610.0 – C57
2021-08-09 21:53:59 S 20 53 33.398 +36 22 37.92 – V C57
2021-08-09 21:53:59 s 1 +147937.11 6 +263173.12 4630.0 – C57
2021-08-09 22:03:59 S 20 53 34.073 +36 22 59.95 – V C57
2021-08-09 22:03:59 s 1 +147691.47 9 +263709.36 8420.0 – C57
2021-08-09 22:13:59 S 20 53 34.834 +36 23 22.38 – V C57
2021-08-09 22:13:59 s 1 +147445.09 9 +264244.27 9990.0 – 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)