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
2021-08-07 21:39:24 C 20 53 27.77 +34 03 11.8 – V 089
2021-08-07 21:42:43 C 20 53 28.02 +34 03 22.6 – V 089
2021-08-07 21:46:02 C 20 53 28.30 +34 03 33.2 – V 089
2021-08-07 21:49:21 C 20 53 28.59 +34 03 44.0 – V 089
2021-08-07 21:52:40 C 20 53 28.83 +34 03 54.6 – V 089
2021-08-08 01:23:59 S 20 51 04.824 +34 31 46.88 – V C57
2021-08-08 01:23:59 s 1 +167801.20 0 +66803.517 5460.0 – C57
2021-08-08 01:33:59 S 20 51 05.177 +34 32 16.12 – V C57
2021-08-08 01:33:59 s 1 +168013.58 4 +67748.819 7320.0 – C57
2021-08-08 01:43:59 S 20 51 05.328 +34 32 43.91 – V C57
2021-08-08 01:43:59 s 1 +168222.37 7 +68692.664 7980.0 – C57
2021-08-08 01:53:59 S 20 51 05.549 +34 33 13.90 – V C57
2021-08-08 01:53:59 s 1 +168427.60 5 +69635.043 7510.0 – C57
2021-08-08 02:23:59 S 20 51 06.298 +34 34 37.70 – V C57
2021-08-08 02:23:59 s 1 +169022.15 6 +72453.318 220.0 – C57
2021-08-08 02:33:59 S 20 51 06.629 +34 35 06.07 – V C57
2021-08-08 02:33:59 s 1 +169213.38 2 +73389.766 6100.0 – C57
2021-08-08 02:43:59 S 20 51 06.818 +34 35 34.19 – V C57
2021-08-08 02:43:59 s 1 +169401.17 1 +74324.714 1270.0 – C57
2021-08-08 03:23:59 S 20 51 07.942 +34 37 27.48 – V C57
2021-08-08 03:23:59 s 1 +170118.45 6 +78049.382 6410.0 – C57
2021-08-08 03:43:59 S 20 51 08.522 +34 38 22.99 – V C57
2021-08-08 03:43:59 s 1 +170457.11 7 +79902.561 1750.0 – C57
2021-08-08 03:53:59 S 20 51 08.726 +34 38 51.00 – V C57
2021-08-08 03:53:59 s 1 +170621.53 7 +80826.842 4130.0 – C57
2021-08-08 04:03:59 S 20 51 08.993 +34 39 19.08 – V C57
2021-08-08 04:03:59 s 1 +170782.71 3 +81749.578 6420.0 – C57
2021-08-08 04:13:59 S 20 51 09.199 +34 39 46.62 – V C57
2021-08-08 04:13:59 s 1 +170940.67 0 +82670.763 8690.0 – C57
2021-08-08 04:23:59 S 20 51 09.658 +34 40 14.59 – V C57
2021-08-08 04:23:59 s 1 +171095.43 1 +83590.393 1010.0 – C57
2021-08-08 04:33:59 S 20 51 09.840 +34 40 41.63 – V C57
2021-08-08 04:33:59 s 1 +171247.01 8 +84508.463 3450.0 – C57
2021-08-08 05:13:59 S 20 51 11.038 +34 42 34.16 – V C57
2021-08-08 05:13:59 s 1 +171822.08 0 +88165.058 5930.0 – C57
2021-08-08 05:23:59 S 20 51 11.460 +34 43 01.74 – V C57
2021-08-08 05:23:59 s 1 +171958.13 5 +89075.264 70.0 – C57
2021-08-08 05:33:59 S 20 51 11.724 +34 43 28.45 – V C57
2021-08-08 05:33:59 s 1 +172091.14 9 +89983.886 4760.0 – C57
2021-08-08 05:53:59 S 20 51 12.300 +34 44 23.24 – V C57
2021-08-08 05:53:59 s 1 +172348.14 1 +91796.361 6070.0 – C57
2021-08-08 06:03:59 S 20 51 12.737 +34 44 51.25 – V C57
2021-08-08 06:03:59 s 1 +172472.16 1 +92700.208 2810.0 – C57
2021-08-08 06:13:59 S 20 51 12.996 +34 45 18.58 – V C57
2021-08-08 06:13:59 s 1 +172593.22 5 +93602.457 370.0 – C57
2021-08-08 06:23:59 S 20 51 13.358 +34 45 45.94 – V C57
2021-08-08 06:23:59 s 1 +172711.35 5 +94503.104 8820.0 – C57
2021-08-08 07:23:59 S 20 51 15.372 +34 48 30.42 – V C57
2021-08-08 07:23:59 s 1 +173359.62 7 +99873.199 1640.0 – C57
2021-08-08 07:33:59 S 20 51 15.677 +34 48 57.35 – V 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)