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
2021-07-29 01:45:33 C 20 24 32.02 +13 25 41.8 – V I22
2021-07-29 01:45:52 C 20 24 32.06 +13 25 44.6 – V I22
2021-07-29 01:46:12 C 20 24 32.10 +13 25 47.1 – V I22
2021-07-29 01:46:31 C 20 24 32.15 +13 25 49.6 – V I22
2021-07-29 01:46:50 C 20 24 32.18 +13 25 52.1 – V I22
2021-07-29 01:47:09 C 20 24 32.21 +13 25 54.3 – V I22
2021-07-29 01:47:28 C 20 24 32.26 +13 25 57.0 – V I22
2021-07-29 01:47:47 C 20 24 32.30 +13 25 59.1 – V I22
2021-07-29 01:48:06 C 20 24 32.35 +13 26 02.0 – V I22
2021-07-29 01:48:25 C 20 24 32.39 +13 26 04.4 – V I22
2021-07-29 01:48:44 C 20 24 32.43 +13 26 06.9 – V I22
2021-07-29 01:49:03 C 20 24 32.47 +13 26 09.3 – V I22
2021-07-29 01:49:22 C 20 24 32.53 +13 26 12.3 – V I22
2021-07-29 01:49:42 C 20 24 32.58 +13 26 14.4 – V I22
2021-07-29 01:50:01 C 20 24 32.61 +13 26 17.2 – V I22
2021-07-29 01:50:20 C 20 24 32.64 +13 26 19.6 – V I22
2021-07-29 01:50:40 C 20 24 32.69 +13 26 22.0 – V I22
2021-07-29 01:50:59 C 20 24 32.74 +13 26 24.6 – V I22
2021-07-29 01:51:18 C 20 24 32.78 +13 26 27.1 – V I22
2021-07-29 01:51:37 C 20 24 32.81 +13 26 29.5 – V I22
2021-07-29 01:51:56 C 20 24 32.84 +13 26 32.3 – V I22
2021-07-29 01:52:15 C 20 24 32.88 +13 26 34.0 – V I22
2021-07-29 01:52:34 C 20 24 32.94 +13 26 36.9 – V I22
2021-07-29 01:52:53 C 20 24 32.98 +13 26 39.7 – V I22
2021-07-29 01:53:12 C 20 24 33.01 +13 26 41.8 – V I22
2021-07-29 01:53:31 C 20 24 33.06 +13 26 44.4 – V I22
2021-07-29 01:53:50 C 20 24 33.09 +13 26 47.0 – V I22
2021-07-29 01:54:10 C 20 24 33.16 +13 26 49.3 – V I22
2021-07-29 01:54:29 C 20 24 33.18 +13 26 52.0 – V I22
2021-07-29 01:54:48 C 20 24 33.21 +13 26 54.3 – V I22
2021-07-29 01:55:07 C 20 24 33.27 +13 26 56.8 – V I22
2021-07-29 01:55:26 C 20 24 33.34 +13 26 59.2 – V I22
2021-07-29 01:55:45 C 20 24 33.35 +13 27 01.9 – V I22
2021-07-29 01:56:04 C 20 24 33.39 +13 27 04.4 – V I22
2021-07-29 01:56:23 C 20 24 33.44 +13 27 06.7 – V I22
2021-07-29 01:56:42 C 20 24 33.48 +13 27 09.3 – V I22
2021-07-29 01:57:01 C 20 24 33.51 +13 27 11.4 – V I22
2021-07-29 01:57:26 C 20 24 33.58 +13 27 14.8 – V I22
2021-07-29 01:57:45 C 20 24 33.61 +13 27 17.3 – V I22
2021-07-29 01:58:04 C 20 24 33.65 +13 27 19.8 – V I22
2021-07-29 01:58:23 C 20 24 33.69 +13 27 22.4 – V I22
2021-07-29 01:58:42 C 20 24 33.73 +13 27 24.8 – V I22
2021-07-29 01:59:01 C 20 24 33.77 +13 27 27.2 – V I22
2021-07-29 01:59:20 C 20 24 33.82 +13 27 29.8 – V I22
2021-07-29 01:59:39 C 20 24 33.86 +13 27 32.4 – V I22
2021-07-29 01:59:59 C 20 24 33.90 +13 27 34.9 – V I22
2021-07-29 02:00:18 C 20 24 33.95 +13 27 37.4 – V I22
2021-07-29 02:00:37 C 20 24 33.99 +13 27 39.9 – V I22
2021-07-29 02:00:55 C 20 24 34.02 +13 27 42.1 – V I22
2021-07-29 02:01:15 C 20 24 34.06 +13 27 44.8 – 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)