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
2021-07-22 21:52:48 V 19 59 13.06 -09 41 29.2 13.4 V 247
2021-07-22 21:52:48 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:53:23 C 19 59 10.73 -09 41 19.3 – V 089
2021-07-22 21:56:41 C 19 59 11.30 -09 40 44.2 – V 089
2021-07-22 21:58:45 V 19 59 13.99 -09 40 26.5 13.6 V 247
2021-07-22 21:58:45 v 1 006.40757 +52.19007 – – 247
2021-07-22 21:59:59 C 19 59 11.87 -09 40 09.0 – V 089
2021-07-22 22:01:24 V 19 59 14.46 -09 40 00.1 13.2 V 247
2021-07-22 22:01:24 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:03:17 C 19 59 12.43 -09 39 34.6 – V 089
2021-07-22 22:05:22 V 19 59 15.04 -09 39 17.1 13.5 V 247
2021-07-22 22:05:22 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:06:35 C 19 59 12.96 -09 38 59.9 – V 089
2021-07-22 22:28:30 C 19 59 17.56 -09 35 06.5 – V L54
2021-07-22 22:36:51 V 19 59 20.47 -09 33 46.4 13.2 V 247
2021-07-22 22:36:51 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:38:50 V 19 59 20.79 -09 33 25.1 13.2 V 247
2021-07-22 22:38:50 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:51:44 C 19 59 23.13 -09 31 07.8 – V K85
2021-07-22 22:52:44 V 19 59 23.15 -09 30 58.2 13.0 V 247
2021-07-22 22:52:44 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:53:24 V 19 59 23.35 -09 30 52.1 13.1 V 247
2021-07-22 22:53:24 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:54:40 C 19 59 23.61 -09 30 36.7 – V K85
2021-07-22 22:54:43 V 19 59 23.49 -09 30 38.9 13.3 V 247
2021-07-22 22:54:43 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:57:37 C 19 59 24.10 -09 30 06.1 – V K85
2021-07-22 22:58:07 C 19 59 22.46 -09 29 54.3 – V L54
2021-07-22 22:58:41 V 19 59 24.16 -09 29 56.8 13.4 V 247
2021-07-22 22:58:41 v 1 006.40757 +52.19007 – – 247
2021-07-22 22:59:21 V 19 59 24.30 -09 29 50.2 13.2 V 247
2021-07-22 22:59:21 v 1 006.40757 +52.19007 – – 247
2021-07-22 23:00:01 V 19 59 24.37 -09 29 41.9 13.1 V 247
2021-07-22 23:00:01 v 1 006.40757 +52.19007 – – 247
2021-07-22 23:01:20 V 19 59 24.67 -09 29 27.5 13.1 V 247
2021-07-22 23:01:20 v 1 006.40757 +52.19007 – – 247
2021-07-22 23:07:57 V 19 59 25.73 -09 28 19.2 13.1 V 247
2021-07-22 23:07:57 v 1 006.40757 +52.19007 – – 247
2021-07-22 23:11:56 V 19 59 26.36 -09 27 36.8 13.1 V 247
2021-07-22 23:11:56 v 1 006.40757 +52.19007 – – 247
2021-07-22 23:28:25 C 19 59 27.48 -09 24 34.6 – V L54
2021-07-22 23:42:13 C 19 59 31.66 -09 22 16.9 – V C23
2021-07-22 23:47:33 C 19 59 32.56 -09 21 20.9 – V C23
2021-07-22 23:52:09 C 19 59 33.33 -09 20 32.3 – V C23
2021-07-22 23:57:23 C 19 59 34.21 -09 19 37.1 – V C23
2021-07-23 00:02:18 C 19 59 35.03 -09 18 45.4 – V C23
2021-07-23 00:05:35 C 19 59 35.59 -09 18 10.7 – V C23
2021-07-23 22:02:44 C 20 03 44.58 -05 29 04.4 – V 089
2021-07-23 22:06:02 C 20 03 45.11 -05 28 30.3 – V 089
2021-07-23 22:09:20 C 20 03 45.63 -05 27 56.1 – V 089
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)