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
2021-06-18 11:54:02 S 16 53 59.813 -68 54 03.56 – V C57
2021-06-18 11:54:02 s 1 -70960.925 0 +392735.59 4160.0 – C57
2021-06-18 12:14:02 S 16 54 03.629 -68 54 01.19 – V C57
2021-06-18 12:14:02 s 1 -71642.791 0 +392436.19 7420.0 – C57
2021-06-18 12:24:02 S 16 54 05.580 -68 53 55.86 – V C57
2021-06-18 12:24:02 s 1 -71983.467 0 +392285.17 8150.0 – C57
2021-06-18 12:54:02 S 16 54 10.740 -68 53 54.02 – V C57
2021-06-18 12:54:02 s 1 -73004.463 0 +391826.88 6710.0 – C57
2021-06-18 13:14:02 S 16 54 14.518 -68 53 53.09 – V C57
2021-06-18 13:14:02 s 1 -73684.256 0 +391516.96 2690.0 – C57
2021-06-18 13:24:02 S 16 54 15.953 -68 53 50.89 – V C57
2021-06-18 13:24:02 s 1 -74023.888 0 +391360.68 9760.0 – C57
2021-06-18 13:44:02 S 16 54 19.498 -68 53 47.15 – V C57
2021-06-18 13:44:02 s 1 -74702.622 0 +391045.50 2050.0 – C57
2021-06-18 13:54:02 S 16 54 21.480 -68 53 46.90 – V C57
2021-06-18 13:54:02 s 1 -75041.721 0 +390886.59 7260.0 – C57
2021-06-18 14:04:02 S 16 54 22.582 -68 53 47.58 – V C57
2021-06-18 14:04:02 s 1 -75380.640 0 +390726.80 1840.0 – C57
2021-06-18 14:14:02 S 16 54 25.260 -68 53 44.45 – V C57
2021-06-18 14:14:02 s 1 -75719.378 0 +390566.14 5800.0 – C57
2021-06-18 14:24:02 S 16 54 26.299 -68 53 43.91 – V C57
2021-06-18 14:24:02 s 1 -76057.935 0 +390404.59 9120.0 – C57
2021-06-18 14:34:02 S 16 54 28.186 -68 53 41.06 – V C57
2021-06-18 14:34:02 s 1 -76396.310 0 +390242.17 1820.0 – C57
2021-06-18 14:44:02 S 16 54 29.959 -68 53 39.91 – V C57
2021-06-18 14:44:02 s 1 -76734.501 0 +390078.87 3870.0 – C57
2021-06-18 14:54:02 S 16 54 31.680 -68 53 37.25 – V C57
2021-06-18 14:54:02 s 1 -77072.509 0 +389914.69 5300.0 – C57
2021-06-18 15:04:02 S 16 54 33.737 -68 53 36.82 – V C57
2021-06-18 15:04:02 s 1 -77410.331 0 +389749.63 6080.0 – C57
2021-06-18 15:14:02 S 16 54 35.369 -68 53 35.05 – V C57
2021-06-18 15:14:02 s 1 -77747.967 0 +389583.69 6210.0 – C57
2021-06-18 15:24:02 S 16 54 37.075 -68 53 34.30 – V C57
2021-06-18 15:24:02 s 1 -78085.416 0 +389416.87 5710.0 – C57
2021-06-18 15:34:02 S 16 54 38.642 -68 53 32.68 – V C57
2021-06-18 15:34:02 s 1 -78422.678 0 +389249.17 4550.0 – C57
2021-06-18 15:44:02 S 16 54 40.517 -68 53 31.49 – V C57
2021-06-18 15:44:02 s 1 -78759.751 0 +389080.59 2750.0 – C57
2021-06-18 15:54:02 S 16 54 42.670 -68 53 32.39 – V C57
2021-06-18 15:54:02 s 1 -79096.635 0 +388911.13 290.0 – C57
2021-06-18 16:04:02 S 16 54 43.896 -68 53 28.90 – V C57
2021-06-18 16:04:02 s 1 -79433.328 0 +388740.79 7180.0 – C57
2021-06-18 16:14:02 S 16 54 46.198 -68 53 28.72 – V C57
2021-06-18 16:14:02 s 1 -79769.829 0 +388569.57 3410.0 – C57
2021-06-18 16:24:02 S 16 54 47.398 -68 53 27.60 – V C57
2021-06-18 16:24:02 s 1 -80106.139 0 +388397.46 8980.0 – C57
2021-06-18 16:34:02 S 16 54 49.313 -68 53 25.44 – V C57
2021-06-18 16:34:02 s 1 -80442.255 0 +388224.48 3880.0 – C57
2021-06-18 16:44:02 S 16 54 50.945 -68 53 23.35 – V C57
2021-06-18 16:44:02 s 1 -80778.177 0 +388050.61 8130.0 – 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)