164221 (2004 QE20)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2054392173 ± 6.47e-08
Semi-major axis (a)1.5051678160 AU ± 3.90e-09
Inclination (i)6.48255670° ± 3.66e-06
Long. of Asc. Node (Ω)272.56314203° ± 4.34e-05
Arg. of Perihelion (ω)74.31831557° ± 4.80e-05
Mean Anomaly (M)175.80276294° ± 2.56e-05
Mean Motion (n)0.5337463165°/day ± 2.07e-09
Perihelion dist (q)1.19594732 AU ± 9.75e-08
Aphelion dist (Q)1.81438831 AU ± 9.75e-08
Orbital Period1.84661936 yr ± 7.17e-09
Physical Parameters
H (abs. magnitude)20.43
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.426″
Uncertainty0
Orbit TypeAmor
MOID0.218307 AU
Observations Used191
Oppositions9
Arc Total2002-2022
First Observation Used2002-06-05
Last Observation Used2022-03-03
Observations (199)
Date Type RA Dec Mag Band Observatory
2002-06-05 06:22:26 C 14 51 43.55 -25 20 29.4 c 644
2002-06-05 06:52:50 C 14 51 41.90 -25 20 09.0 c 644
2002-06-05 07:22:43 C 14 51 40.34 -25 19 48.5 c 644
2002-06-13 05:13:31 C 14 44 08.25 -23 16 31.6 c 644
2002-06-13 05:41:19 C 14 44 07.32 -23 16 14.5 c 644
2004-08-26 07:00:21 C 00 02 46.47 +32 04 26.1 o 699
2004-08-26 07:02:42 C 00 02 46.47 +32 04 30.2 19.6 c 704
2004-08-26 07:02:50 C 00 02 46.36 +32 04 31.1 19.3 c 704
2004-08-26 07:17:36 C 00 02 46.78 +32 04 47.9 19.5 c 704
2004-08-26 07:17:44 C 00 02 46.75 +32 04 48.5 19.8 c 704
2004-08-26 07:28:32 C 00 02 47.18 +32 04 58.1 o 699
2004-08-26 07:32:31 C 00 02 47.17 +32 05 04.4 19.7 c 704
2004-08-26 07:32:38 C 00 02 47.08 +32 05 04.4 20.0 c 704
2004-08-26 07:47:35 C 00 02 47.42 +32 05 21.1 19.6 c 704
2004-08-26 07:47:43 C 00 02 47.39 +32 05 21.8 19.6 c 704
2004-08-26 07:56:45 C 00 02 47.84 +32 05 31.6 o 699
2004-08-26 08:02:54 C 00 02 47.76 +32 05 38.3 19.7 c 704
2004-08-26 08:03:02 C 00 02 47.75 +32 05 38.4 20.0 c 704
2004-08-26 08:25:00 C 00 02 48.49 +32 06 01.4 o 699
2004-08-26 21:27:50 C 00 03 14.22 +32 20 07.3 c 587
2004-08-26 21:31:26 C 00 03 14.34 +32 20 10.2 c 587
2004-08-26 21:35:03 C 00 03 14.48 +32 20 15.8 c 587
2004-08-27 03:28:52 C 00 03 26.12 +32 26 36.2 c G90
2004-08-27 03:33:23 C 00 03 26.23 +32 26 41.2 c G90
2004-08-27 03:37:54 C 00 03 26.34 +32 26 46.7 c G90
2004-08-27 05:19:18 C 00 03 28.71 +32 28 42.0 r H36
2004-08-27 05:41:38 C 00 03 29.19 +32 29 07.9 r H36
2004-08-27 07:14:17 C 00 03 31.79 +32 30 50.9 c 854
2004-08-27 07:17:43 C 00 03 31.75 +32 30 55.0 c 854
2004-08-27 07:21:05 C 00 03 31.92 +32 30 58.5 c 854
2004-08-27 08:11:28 C 00 03 32.80 +32 31 52.7 19.2 c 704
2004-08-27 08:14:29 C 00 03 33.31 +32 31 55.5 c 673
2004-08-27 08:17:09 C 00 03 33.35 +32 31 57.9 c 673
2004-08-27 08:24:30 C 00 03 33.51 +32 32 06.1 c 673
2004-08-27 08:26:23 C 00 03 33.08 +32 32 08.5 19.5 c 704
2004-08-27 08:27:10 C 00 03 33.58 +32 32 08.9 c 673
2004-08-27 08:41:17 C 00 03 33.45 +32 32 24.4 20.0 c 704
2004-08-27 08:56:12 C 00 03 33.74 +32 32 40.1 19.7 c 704
2004-08-27 09:11:09 C 00 03 34.05 +32 32 56.1 20.0 c 704
2004-08-31 01:48:50 C 00 06 01.05 +34 02 21.4 r J95
2004-08-31 01:56:35 C 00 06 01.13 +34 02 29.5 r J95
2004-08-31 02:04:18 C 00 06 01.35 +34 02 36.3 r J95
2004-09-01 23:37:39 C 00 07 06.15 +34 44 20.5 g 012
2004-09-02 00:01:22 C 00 07 06.45 +34 44 41.9 g 012
2004-09-02 00:06:21 C 00 07 06.56 +34 44 46.6 g 012
2004-09-02 00:11:21 C 00 07 06.60 +34 44 51.1 g 012
2004-09-02 00:16:23 C 00 07 06.70 +34 44 55.1 g 012
2004-09-02 00:21:23 C 00 07 06.74 +34 44 59.8 g 012
2004-09-02 00:26:22 C 00 07 06.82 +34 45 04.1 g 012
2004-09-06 05:41:40 C 00 09 01.39 +36 06 23.5 18.6 c 704