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
2021-08-01 03:05:29 V 20 34 52.27 +21 51 14.1 14.6 V 247
2021-08-01 03:05:29 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:06:26 V 20 34 52.38 +21 51 19.7 14.7 V 247
2021-08-01 03:06:26 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:07:23 V 20 34 52.48 +21 51 25.2 14.4 V 247
2021-08-01 03:07:23 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:08:20 V 20 34 52.58 +21 51 31.2 14.6 V 247
2021-08-01 03:08:20 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:13:59 S 20 32 21.240 +21 08 37.36 – V C57
2021-08-01 03:13:59 s 1 -115992.80 4 +359336.65 6520.0 – C57
2021-08-01 03:16:52 V 20 34 53.55 +21 52 24.7 15.2 V 247
2021-08-01 03:16:52 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:18:46 V 20 34 53.74 +21 52 36.5 15.5 V 247
2021-08-01 03:18:46 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:19:42 V 20 34 53.84 +21 52 42.2 14.8 V 247
2021-08-01 03:19:42 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:20:39 V 20 34 53.94 +21 52 47.7 14.5 V 247
2021-08-01 03:20:39 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:21:36 V 20 34 54.04 +21 52 53.5 14.7 V 247
2021-08-01 03:21:36 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:22:33 V 20 34 54.16 +21 52 59.6 14.8 V 247
2021-08-01 03:22:33 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:23:59 S 20 32 22.987 +21 09 35.06 – V C57
2021-08-01 03:23:59 s 1 -116316.40 9 +359091.13 3250.0 – C57
2021-08-01 03:33:55 V 20 34 55.40 +21 54 08.6 13.1 V 247
2021-08-01 03:33:55 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:33:59 S 20 32 24.694 +21 10 33.13 – V C57
2021-08-01 03:33:59 s 1 -116639.71 3 +358844.67 8940.0 – C57
2021-08-01 03:34:52 V 20 34 55.40 +21 54 14.0 13.1 V 247
2021-08-01 03:34:52 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:42:15 V 20 34 56.18 +21 54 58.2 13.4 V 247
2021-08-01 03:42:15 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:43:12 V 20 34 56.28 +21 55 03.5 14.0 V 247
2021-08-01 03:43:12 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:45:05 V 20 34 56.57 +21 55 17.2 15.2 V 247
2021-08-01 03:45:05 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:46:02 V 20 34 56.64 +21 55 21.9 14.8 V 247
2021-08-01 03:46:02 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:47:56 V 20 34 56.87 +21 55 34.2 14.8 V 247
2021-08-01 03:47:56 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:48:53 V 20 34 56.98 +21 55 40.8 14.9 V 247
2021-08-01 03:48:53 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:49:50 V 20 34 57.04 +21 55 45.1 14.9 V 247
2021-08-01 03:49:50 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:51:40 V 20 35 00.08 +21 55 32.8 14.5 V 247
2021-08-01 03:51:40 v 1 242.98596 +33.20762 – – 247
2021-08-01 03:51:43 V 20 34 57.27 +21 55 57.6 14.9 V 247
2021-08-01 03:51:43 v 1 279.74313 +26.94155 – – 247
2021-08-01 03:52:39 V 20 35 00.20 +21 55 38.0 14.4 V 247
2021-08-01 03:52:39 v 1 242.98596 +33.20762 – – 247
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)