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
2021-07-28 22:36:26 C 20 24 01.12 +13 01 10.7 – q 160
2021-07-28 22:47:11 C 20 24 02.48 +13 02 35.2 – q 160
2021-07-28 22:57:59 C 20 24 03.85 +13 03 59.8 – q 160
2021-07-28 23:17:57 C 20 24 06.38 +13 06 36.3 – q 160
2021-07-28 23:36:58 C 20 24 09.80 +13 08 51.8 – V Z80
2021-07-28 23:37:52 C 20 24 09.93 +13 08 59.2 – V Z80
2021-07-28 23:38:58 C 20 24 10.06 +13 09 07.9 – V Z80
2021-07-28 23:39:11 C 20 24 09.06 +13 09 22.4 – q 160
2021-07-29 00:00:58 C 20 24 11.82 +13 12 12.5 – q 160
2021-07-29 01:32:27 C 20 24 30.31 +13 23 59.7 – V I22
2021-07-29 01:32:46 C 20 24 30.36 +13 24 02.4 – V I22
2021-07-29 01:33:05 C 20 24 30.37 +13 24 04.4 – V I22
2021-07-29 01:33:25 C 20 24 30.43 +13 24 07.2 – V I22
2021-07-29 01:33:44 C 20 24 30.47 +13 24 09.6 – V I22
2021-07-29 01:34:03 C 20 24 30.51 +13 24 12.3 – V I22
2021-07-29 01:34:22 C 20 24 30.55 +13 24 14.7 – V I22
2021-07-29 01:34:41 C 20 24 30.59 +13 24 17.2 – V I22
2021-07-29 01:35:02 C 20 24 30.63 +13 24 19.4 – V I22
2021-07-29 01:35:21 C 20 24 30.67 +13 24 21.9 – V I22
2021-07-29 01:35:40 C 20 24 30.72 +13 24 24.7 – V I22
2021-07-29 01:35:59 C 20 24 30.78 +13 24 27.0 – V I22
2021-07-29 01:36:18 C 20 24 30.81 +13 24 29.7 – V I22
2021-07-29 01:36:36 C 20 24 30.85 +13 24 32.2 – V I22
2021-07-29 01:36:55 C 20 24 30.89 +13 24 34.8 – V I22
2021-07-29 01:37:14 C 20 24 30.93 +13 24 37.1 – V I22
2021-07-29 01:37:35 C 20 24 30.96 +13 24 39.4 – V I22
2021-07-29 01:37:54 C 20 24 31.02 +13 24 42.1 – V I22
2021-07-29 01:38:13 C 20 24 31.06 +13 24 44.8 – V I22
2021-07-29 01:38:32 C 20 24 31.10 +13 24 47.3 – V I22
2021-07-29 01:38:51 C 20 24 31.14 +13 24 49.8 – V I22
2021-07-29 01:39:11 C 20 24 31.19 +13 24 52.1 – V I22
2021-07-29 01:39:30 C 20 24 31.23 +13 24 54.7 – V I22
2021-07-29 01:39:49 C 20 24 31.26 +13 24 57.2 – V I22
2021-07-29 01:40:08 C 20 24 31.31 +13 24 59.7 – V I22
2021-07-29 01:40:27 C 20 24 31.35 +13 25 02.4 – V I22
2021-07-29 01:40:46 C 20 24 31.39 +13 25 04.6 – V I22
2021-07-29 01:41:05 C 20 24 31.42 +13 25 07.1 – V I22
2021-07-29 01:41:25 C 20 24 31.48 +13 25 09.6 – V I22
2021-07-29 01:41:44 C 20 24 31.52 +13 25 12.2 – V I22
2021-07-29 01:42:03 C 20 24 31.56 +13 25 14.6 – V I22
2021-07-29 01:42:22 C 20 24 31.60 +13 25 17.2 – V I22
2021-07-29 01:42:41 C 20 24 31.64 +13 25 19.6 – V I22
2021-07-29 01:43:00 C 20 24 31.69 +13 25 22.2 – V I22
2021-07-29 01:43:20 C 20 24 31.72 +13 25 24.4 – V I22
2021-07-29 01:43:39 C 20 24 31.77 +13 25 27.1 – V I22
2021-07-29 01:43:58 C 20 24 31.81 +13 25 29.7 – V I22
2021-07-29 01:44:17 C 20 24 31.85 +13 25 32.1 – V I22
2021-07-29 01:44:36 C 20 24 31.91 +13 25 34.3 – V I22
2021-07-29 01:44:55 C 20 24 31.94 +13 25 37.1 – V I22
2021-07-29 01:45:14 C 20 24 31.97 +13 25 39.2 – V I22
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)