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 07:43:59 S 20 56 29.462 +37 33 31.57 – V C57
2021-08-11 07:43:59 s 1 +86819.908 0 +346593.94 3090.0 – C57
2021-08-11 07:53:59 S 20 56 30.422 +37 33 51.84 – V C57
2021-08-11 07:53:59 s 1 +86478.694 0 +346886.77 5570.0 – C57
2021-08-11 08:03:59 S 20 56 31.440 +37 34 11.57 – V C57
2021-08-11 08:03:59 s 1 +86137.213 0 +347178.51 7280.0 – C57
2021-08-11 08:13:59 S 20 56 32.371 +37 34 31.01 – V C57
2021-08-11 08:13:59 s 1 +85795.465 0 +347469.16 8240.0 – C57
2021-08-11 08:23:59 S 20 56 33.312 +37 34 50.66 – V C57
2021-08-11 08:23:59 s 1 +85453.454 0 +347758.73 8450.0 – C57
2021-08-11 08:33:59 S 20 56 34.313 +37 35 11.18 – V C57
2021-08-11 08:33:59 s 1 +85111.179 0 +348047.21 7910.0 – C57
2021-08-11 08:43:59 S 20 56 35.150 +37 35 30.77 – V C57
2021-08-11 08:43:59 s 1 +84768.642 0 +348334.61 6620.0 – C57
2021-08-11 10:03:59 S 20 56 42.838 +37 38 06.58 – V C57
2021-08-11 10:03:59 s 1 +82019.108 0 +350594.89 160.0 – C57
2021-08-11 10:13:59 S 20 56 43.733 +37 38 26.88 – V C57
2021-08-11 10:13:59 s 1 +81674.283 0 +350872.57 2400.0 – C57
2021-08-11 10:23:59 S 20 56 44.616 +37 38 47.15 – V C57
2021-08-11 10:23:59 s 1 +81329.211 0 +351149.17 3940.0 – C57
2021-08-11 10:33:59 S 20 56 45.566 +37 39 06.62 – V C57
2021-08-11 10:33:59 s 1 +80983.893 0 +351424.70 4780.0 – C57
2021-08-11 10:43:59 S 20 56 46.574 +37 39 25.67 – V C57
2021-08-11 10:43:59 s 1 +80638.332 0 +351699.16 4940.0 – C57
2021-08-11 10:53:59 S 20 56 47.582 +37 39 45.61 – V C57
2021-08-11 10:53:59 s 1 +80292.527 0 +351972.54 4400.0 – C57
2021-08-11 11:13:59 S 20 56 49.378 +37 40 24.56 – V C57
2021-08-11 11:13:59 s 1 +79600.196 0 +352516.09 1310.0 – C57
2021-08-11 11:23:59 S 20 56 50.323 +37 40 45.01 – V C57
2021-08-11 11:23:59 s 1 +79253.672 0 +352786.26 8750.0 – C57
2021-08-11 11:33:59 S 20 56 51.391 +37 41 03.30 – V C57
2021-08-11 11:33:59 s 1 +78906.910 0 +353055.36 5520.0 – C57
2021-08-11 12:03:59 S 20 56 54.240 +37 42 01.19 – V C57
2021-08-11 12:03:59 s 1 +77865.218 0 +353856.23 1880.0 – C57
2021-08-11 12:13:59 S 20 56 55.147 +37 42 21.20 – V C57
2021-08-11 12:13:59 s 1 +77517.523 0 +354121.06 6030.0 – C57
2021-08-11 12:23:59 S 20 56 56.081 +37 42 40.79 – V C57
2021-08-11 12:23:59 s 1 +77169.597 0 +354384.82 9530.0 – C57
2021-08-11 12:33:59 S 20 56 57.022 +37 43 00.08 – V C57
2021-08-11 12:33:59 s 1 +76821.443 0 +354647.51 2380.0 – C57
2021-08-11 12:43:59 S 20 56 57.926 +37 43 19.09 – V C57
2021-08-11 12:43:59 s 1 +76473.061 0 +354909.14 4610.0 – C57
2021-08-11 12:53:59 S 20 56 58.898 +37 43 39.50 – V C57
2021-08-11 12:53:59 s 1 +76124.454 0 +355169.70 6190.0 – C57
2021-08-11 13:03:59 S 20 56 59.954 +37 43 58.15 – V C57
2021-08-11 13:03:59 s 1 +75775.622 0 +355429.21 7150.0 – C57
2021-08-11 13:13:59 S 20 57 00.830 +37 44 18.06 – V C57
2021-08-11 13:13:59 s 1 +75426.566 0 +355687.65 7480.0 – C57
2021-08-11 14:13:59 S 20 57 06.636 +37 46 14.12 – V C57
2021-08-11 14:13:59 s 1 +73327.622 0 +357216.01 6580.0 – 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)