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
2021-08-05 14:14:12 V 20 47 42.15 +30 43 16.1 15.0 V 247
2021-08-05 14:14:12 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:15:12 V 20 47 42.23 +30 43 20.5 14.5 V 247
2021-08-05 14:15:12 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:22:05 V 20 47 42.80 +30 43 49.5 14.7 V 247
2021-08-05 14:22:05 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:23:05 V 20 47 42.88 +30 43 53.8 15.9 V 247
2021-08-05 14:23:05 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:23:59 S 20 49 49.625 +30 23 52.55 – V C57
2021-08-05 14:23:59 s 1 -155814.54 9 -12195.007 3820.0 – C57
2021-08-05 14:24:04 V 20 47 42.98 +30 43 57.7 16.2 V 247
2021-08-05 14:24:04 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:25:04 V 20 47 43.03 +30 44 01.6 15.6 V 247
2021-08-05 14:25:04 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:26:03 V 20 47 43.12 +30 44 05.7 15.7 V 247
2021-08-05 14:26:03 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:27:03 V 20 47 43.20 +30 44 09.6 15.2 V 247
2021-08-05 14:27:03 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:28:03 V 20 47 43.26 +30 44 13.5 14.9 V 247
2021-08-05 14:28:03 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:29:02 V 20 47 43.39 +30 44 17.9 15.0 V 247
2021-08-05 14:29:02 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:30:02 V 20 47 43.47 +30 44 21.7 14.9 V 247
2021-08-05 14:30:02 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:31:01 V 20 47 43.54 +30 44 25.0 15.1 V 247
2021-08-05 14:31:01 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:32:01 V 20 47 43.60 +30 44 29.7 15.3 V 247
2021-08-05 14:32:01 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:33:00 V 20 47 43.69 +30 44 33.7 15.2 V 247
2021-08-05 14:33:00 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:33:59 S 20 49 50.940 +30 24 43.92 – V C57
2021-08-05 14:33:59 s 1 -155216.30 4 -13075.908 8400.0 – C57
2021-08-05 14:34:00 V 20 47 43.77 +30 44 37.5 15.5 V 247
2021-08-05 14:34:00 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:35:00 V 20 47 43.88 +30 44 41.2 15.7 V 247
2021-08-05 14:35:00 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:41:57 V 20 47 44.44 +30 45 09.0 16.0 V 247
2021-08-05 14:41:57 v 1 134.17920 +34.51211 – – 247
2021-08-05 14:43:59 S 20 49 52.025 +30 25 30.76 – V C57
2021-08-05 14:43:59 s 1 -154612.93 9 -13956.373 6850.0 – C57
2021-08-05 14:53:59 S 20 49 53.234 +30 26 21.48 – V C57
2021-08-05 14:53:59 s 1 -154004.41 9 -14836.370 9050.0 – C57
2021-08-05 15:03:59 S 20 49 54.360 +30 27 12.82 – V C57
2021-08-05 15:03:59 s 1 -153390.71 2 -15715.865 4920.0 – C57
2021-08-05 15:13:59 S 20 49 55.954 +30 27 53.24 – V C57
2021-08-05 15:13:59 s 1 -152771.78 5 -16594.821 4340.0 – C57
2021-08-05 15:23:59 S 20 49 56.755 +30 28 35.51 – V C57
2021-08-05 15:23:59 s 1 -152147.60 5 -17473.203 7230.0 – C57
2021-08-05 15:33:59 S 20 49 58.111 +30 29 40.96 – V C57
2021-08-05 15:33:59 s 1 -151518.13 6 -18350.976 3460.0 – 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)