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
2021-08-02 21:11:46 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:12:46 V 20 40 11.91 +25 46 02.7 14.9 V 247
2021-08-02 21:12:46 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:13:45 V 20 40 12.02 +25 46 07.9 15.0 V 247
2021-08-02 21:13:45 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:13:59 S 20 39 37.596 +24 59 28.90 – V C57
2021-08-02 21:13:59 s 1 -184355.87 6 +266560.15 10.0 – C57
2021-08-02 21:15:44 V 20 40 12.20 +25 46 18.5 14.6 V 247
2021-08-02 21:15:44 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:16:44 V 20 40 12.38 +25 46 26.2 15.0 V 247
2021-08-02 21:16:44 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:17:43 V 20 40 12.42 +25 46 29.0 14.6 V 247
2021-08-02 21:17:43 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:18:43 V 20 40 12.52 +25 46 34.0 14.6 V 247
2021-08-02 21:18:43 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:23:59 S 20 39 39.305 +25 00 21.31 – V C57
2021-08-02 21:23:59 s 1 -184556.19 3 +266063.25 5610.0 – C57
2021-08-02 21:32:22 V 20 40 13.93 +25 47 45.6 15.3 V 247
2021-08-02 21:32:22 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:33:22 V 20 40 14.03 +25 47 51.1 14.9 V 247
2021-08-02 21:33:22 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:33:59 S 20 39 40.994 +25 01 13.69 – V C57
2021-08-02 21:33:59 s 1 -184755.76 9 +265565.27 8790.0 – C57
2021-08-02 21:34:21 V 20 40 14.10 +25 47 55.5 14.9 V 247
2021-08-02 21:34:21 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:37:20 V 20 40 14.45 +25 48 11.6 14.8 V 247
2021-08-02 21:37:20 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:38:19 V 20 40 14.53 +25 48 17.3 14.6 V 247
2021-08-02 21:38:19 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:39:19 V 20 40 14.62 +25 48 21.5 14.7 V 247
2021-08-02 21:39:19 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:40:08 C 20 40 13.88 +25 48 27.0 – V L18
2021-08-02 21:40:19 V 20 40 14.71 +25 48 27.3 14.7 V 247
2021-08-02 21:40:19 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:40:27 C 20 40 13.90 +25 48 27.9 – V L18
2021-08-02 21:40:46 C 20 40 13.91 +25 48 28.7 – V L18
2021-08-02 21:41:05 C 20 40 13.97 +25 48 31.8 – V L18
2021-08-02 21:41:18 V 20 40 14.83 +25 48 32.7 14.6 V 247
2021-08-02 21:41:18 v 1 016.33576 +48.20435 – – 247
2021-08-02 21:41:24 C 20 40 14.02 +25 48 33.4 – V L18
2021-08-02 21:41:43 C 20 40 14.04 +25 48 35.0 – V L18
2021-08-02 21:42:02 C 20 40 14.07 +25 48 36.6 – V L18
2021-08-02 21:42:21 C 20 40 14.11 +25 48 38.1 – V L18
2021-08-02 21:42:40 C 20 40 14.14 +25 48 39.9 – V L18
2021-08-02 21:42:59 C 20 40 14.17 +25 48 41.5 – V L18
2021-08-02 21:43:18 C 20 40 14.21 +25 48 43.3 – V L18
2021-08-02 21:43:37 C 20 40 14.24 +25 48 44.7 – V L18
2021-08-02 21:43:56 C 20 40 14.27 +25 48 46.2 – V L18
2021-08-02 21:43:59 S 20 39 42.715 +25 02 06.14 – V C57
2021-08-02 21:43:59 s 1 -184954.59 9 +265066.23 9540.0 – 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)