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
2021-06-21 02:54:02 S 17 05 11.323 -68 46 15.10 – V C57
2021-06-21 02:54:02 s 1 -178111.48 2 +270778.72 5180.0 – C57
2021-06-21 03:04:02 S 17 05 12.996 -68 46 15.38 – V C57
2021-06-21 03:04:02 s 1 -178303.17 8 +270268.80 9370.0 – C57
2021-06-21 03:14:02 S 17 05 14.587 -68 46 13.37 – V C57
2021-06-21 03:14:02 s 1 -178494.14 2 +269757.81 1350.0 – C57
2021-06-21 03:24:02 S 17 05 16.462 -68 46 12.61 – V C57
2021-06-21 03:24:02 s 1 -178684.37 0 +269245.73 1110.0 – C57
2021-06-21 03:34:02 S 17 05 18.264 -68 46 11.75 – V C57
2021-06-21 03:34:02 s 1 -178873.85 9 +268732.56 8640.0 – C57
2021-06-21 05:44:02 S 17 05 41.150 -68 45 57.56 – V C57
2021-06-21 05:44:02 s 1 -181268.71 7 +261961.93 9770.0 – C57
2021-06-21 06:04:02 S 17 05 44.395 -68 45 53.93 – V C57
2021-06-21 06:04:02 s 1 -181625.63 0 +260903.82 8260.0 – C57
2021-06-21 06:14:02 S 17 05 46.152 -68 45 50.98 – V C57
2021-06-21 06:14:02 s 1 -181802.90 9 +260373.11 8950.0 – C57
2021-06-21 06:24:02 S 17 05 48.065 -68 45 52.49 – V C57
2021-06-21 06:24:02 s 1 -181979.40 0 +259841.30 7270.0 – C57
2021-06-21 06:34:02 S 17 05 49.927 -68 45 48.31 – V C57
2021-06-21 06:34:02 s 1 -182155.09 9 +259308.38 3210.0 – C57
2021-06-21 06:54:02 S 17 05 53.294 -68 45 49.64 – V C57
2021-06-21 06:54:02 s 1 -182504.10 9 +258239.22 7890.0 – C57
2021-06-21 07:04:02 S 17 05 54.703 -68 45 49.50 – V C57
2021-06-21 07:04:02 s 1 -182677.41 5 +257702.97 6610.0 – C57
2021-06-21 07:14:02 S 17 05 56.801 -68 45 46.30 – V C57
2021-06-21 07:14:02 s 1 -182849.91 6 +257165.62 2920.0 – C57
2021-06-21 07:24:02 S 17 05 58.111 -68 45 44.78 – V C57
2021-06-21 07:24:02 s 1 -183021.60 9 +256627.15 6790.0 – C57
2021-06-21 07:34:02 S 17 06 00.137 -68 45 44.89 – V C57
2021-06-21 07:34:02 s 1 -183192.49 3 +256087.58 8220.0 – C57
2021-06-21 07:44:02 S 17 06 01.814 -68 45 42.91 – V C57
2021-06-21 07:44:02 s 1 -183362.56 2 +255546.88 7210.0 – C57
2021-06-21 07:54:02 S 17 06 03.372 -68 45 42.44 – V C57
2021-06-21 07:54:02 s 1 -183531.81 4 +255005.08 3730.0 – C57
2021-06-21 08:04:02 S 17 06 05.249 -68 45 38.59 – V C57
2021-06-21 08:04:02 s 1 -183700.24 7 +254462.15 7790.0 – C57
2021-06-21 08:14:02 S 17 06 06.823 -68 45 37.80 – V C57
2021-06-21 08:14:02 s 1 -183867.85 6 +253918.11 9370.0 – C57
2021-06-21 08:24:02 S 17 06 08.726 -68 45 37.80 – V C57
2021-06-21 08:24:02 s 1 -184034.63 8 +253372.96 8460.0 – C57
2021-06-21 08:34:02 S 17 06 10.574 -68 45 36.97 – V C57
2021-06-21 08:34:02 s 1 -184200.59 0 +252826.68 5060.0 – C57
2021-06-21 08:44:02 S 17 06 12.245 -68 45 36.58 – V C57
2021-06-21 08:44:02 s 1 -184365.70 8 +252279.28 9150.0 – C57
2021-06-21 08:54:02 S 17 06 14.076 -68 45 35.93 – V C57
2021-06-21 08:54:02 s 1 -184529.99 1 +251730.77 720.0 – C57
2021-06-21 09:04:02 S 17 06 15.456 -68 45 34.56 – V C57
2021-06-21 09:04:02 s 1 -184693.43 3 +251181.13 9770.0 – C57
2021-06-21 09:14:02 S 17 06 16.697 -68 45 31.00 – V C57
2021-06-21 09:14:02 s 1 -184856.03 2 +250630.36 6280.0 – 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)