164222 (2004 RN9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2470064760 ± 3.34e-08
Semi-major axis (a)1.3042066614 AU ± 1.56e-08
Inclination (i)16.10950567° ± 1.10e-05
Long. of Asc. Node (Ω)0.93700961° ± 4.85e-06
Arg. of Perihelion (ω)67.22947631° ± 1.56e-05
Mean Anomaly (M)29.71864805° ± 4.49e-05
Mean Motion (n)0.6617480268°/day ± 1.19e-08
Perihelion dist (q)0.98205917 AU ± 4.51e-08
Aphelion dist (Q)1.62635415 AU ± 4.77e-08
Orbital Period1.48942837 yr ± 2.68e-08
NGA Modelr2
A2-5.14616370e-14 ± 2.36e-14 AU/d²
Physical Parameters
H (abs. magnitude)20.85
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.539″
Uncertainty0
Orbit TypeApollo
MOID0.092801 AU
Observations Used271
Oppositions7
Arc Total2001-2023
First Observation Used2001-09-11
Last Observation Used2023-05-01
Observations (273)
Date Type RA Dec Mag Band Observatory
2008-02-26 11:39:53 C 12 38 18.43 +22 37 59.6 o 291
2008-02-26 11:55:44 C 12 38 15.72 +22 37 41.4 o 291
2008-02-26 12:11:32 C 12 38 13.00 +22 37 22.7 o 291
2008-02-29 07:40:43 C 12 26 56.25 +21 17 38.1 r 703
2008-02-29 07:52:15 C 12 26 54.27 +21 17 24.2 r 703
2008-02-29 08:05:53 C 12 26 51.75 +21 17 08.8 r 703
2008-02-29 08:17:27 C 12 26 49.74 +21 16 54.7 r 703
2008-02-29 10:32:58 C 12 26 25.76 +21 14 09.2 r 703
2008-02-29 10:42:55 C 12 26 24.07 +21 13 58.4 r 703
2008-02-29 10:52:54 C 12 26 22.23 +21 13 44.2 r 703
2008-02-29 11:02:51 C 12 26 20.54 +21 13 32.3 r 703
2008-03-06 06:59:17 C 12 02 49.99 +18 13 52.3 r 703
2008-03-06 07:09:40 C 12 02 48.19 +18 13 39.4 r 703
2008-03-06 07:20:09 C 12 02 46.35 +18 13 24.7 r 703
2008-03-06 07:30:37 C 12 02 44.62 +18 13 10.2 r 703
2008-03-06 10:31:05 C 12 02 13.41 +18 09 08.3 r G96
2008-03-06 10:39:57 C 12 02 11.90 +18 08 56.3 r G96
2008-03-06 10:48:43 C 12 02 10.39 +18 08 44.4 r G96
2008-03-06 10:57:31 C 12 02 08.91 +18 08 32.7 r G96
2008-03-08 21:23:56 C 11 52 41.24 +16 49 35.0 r A13
2008-03-08 21:50:54 C 11 52 36.83 +16 48 59.0 r A13
2008-03-08 22:17:29 C 11 52 32.45 +16 48 23.3 r A13
2008-03-17 23:13:05 C 11 21 18.28 +11 55 12.3 c J76
2008-03-17 23:25:16 C 11 21 16.67 +11 54 57.1 c J76
2008-03-17 23:40:23 C 11 21 14.74 +11 54 38.2 c J76
2008-03-25 04:01:46 C 11 02 25.85 +08 20 05.6 o 691
2008-03-25 04:21:03 C 11 02 23.97 +08 19 43.4 o 691
2008-03-25 04:40:20 C 11 02 22.09 +08 19 20.8 o 691
2011-03-04 10:17:04 C 13 02 10.64 +06 22 11.1 r 703
2011-03-04 10:28:56 C 13 02 08.98 +06 21 59.8 r 703
2011-03-04 10:40:53 C 13 02 07.26 +06 21 48.9 r 703
2011-03-04 10:52:52 C 13 02 05.60 +06 21 37.4 r 703
2011-03-10 07:28:50 C 12 42 36.10 +04 08 29.2 o 691
2011-03-10 07:54:19 C 12 42 32.36 +04 08 06.6 o 691
2011-03-10 08:19:48 C 12 42 28.54 +04 07 42.5 o 691
2011-03-30 06:08:34 C 11 38 56.04 -02 38 45.3 r 703
2011-03-30 06:22:16 C 11 38 54.49 -02 38 54.4 r 703
2011-03-30 06:36:05 C 11 38 52.87 -02 39 04.1 r 703
2011-03-30 06:49:56 C 11 38 51.32 -02 39 14.1 r 703
2011-03-30 08:55:06 C 11 38 38.383 -02 40 36.71 L F51
2011-03-30 09:14:15 C 11 38 36.228 -02 40 50.14 L F51
2011-03-30 09:35:05 C 11 38 33.885 -02 41 04.69 L F51
2014-02-28 12:10:22 C 13 47 07.088 -02 36 59.49 L F51
2014-02-28 12:42:41 C 13 47 04.335 -02 37 28.43 L F51
2014-02-28 12:58:56 C 13 47 02.943 -02 37 42.98 L F51
2014-03-06 05:38:34 C 13 34 41.17 -04 39 16.8 c J04
2014-03-06 05:55:14 C 13 34 39.37 -04 39 31.2 c J04
2014-03-07 10:36:21 C 13 31 43.35 -05 04 41.6 q G96
2014-03-07 10:49:52 C 13 31 41.88 -05 04 53.3 q G96
2014-03-07 11:04:20 C 13 31 40.27 -05 05 06.1 q G96