IAA RAS IAA Minor Planet Database

2004 RU109

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4885354857
Semi-major axis (a)1.5305793335 AU
Inclination (i)5.84135481° ± 4.00e+00
Long. of Asc. Node (Ω)171.26087099°
Arg. of Perihelion (ω)250.78059862°
Mean Anomaly (M)40.82854573°
Mean Motion (n)0.5204993400°/day
Perihelion dist (q)0.78280480 AU
Aphelion dist (Q)2.27835440 AU
Orbital Period1.89358100 yr
Physical Parameters
H (abs. magnitude)26.40
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-18
RMS Residual0.542″
Uncertainty—
Orbit TypeApollo
MOID0.000993 AU
Observations Used46
Oppositions1
Arc Total2004-2004
First Observation Used—
Last Observation Used2004-09-12
Observations (51)
Date Type RA Dec Mag Band Observatory
2004-09-11 05:27:05 C 21 58 19.42 +06 05 55.8 19.1 c 704
2004-09-11 05:44:06 C 21 58 08.22 +06 05 55.6 19.9 c 704
2004-09-11 06:01:04 C 21 57 56.96 +06 05 53.8 19.5 c 704
2004-09-11 06:18:12 C 21 57 45.51 +06 05 52.1 19.5 c 704
2004-09-11 06:35:15 C 21 57 34.03 +06 05 50.3 19.6 c 704
2004-09-11 22:36:40 C 21 45 22.88 +06 01 01.2 – r J95
2004-09-11 22:40:56 C 21 45 09.56 +06 01 20.2 – c 246
2004-09-11 22:41:16 C 21 45 17.45 +06 00 59.8 – r J95
2004-09-11 22:41:39 C 21 45 09.00 +06 01 19.6 – c 246
2004-09-11 22:43:27 C 21 45 06.73 +06 01 19.1 – c 246
2004-09-11 22:45:46 C 21 45 12.06 +06 00 59.0 – r J95
2004-09-12 00:31:18 C 21 43 02.08 +06 00 17.6 – r J95
2004-09-12 00:33:59 C 21 42 58.62 +06 00 16.4 – r J95
2004-09-12 00:36:46 C 21 42 55.07 +06 00 15.6 – r J95
2004-09-12 02:24:50 C 21 41 32.03 +06 02 37.6 – c G90
2004-09-12 02:26:12 C 21 41 30.17 +06 02 37.1 – c G90
2004-09-12 02:27:33 C 21 41 28.31 +06 02 37.2 – c G90
2004-09-12 04:53:20 C 21 37 43.33 +06 02 04.5 – o H06
2004-09-12 04:56:33 C 21 37 37.97 +06 02 03.2 – o H06
2004-09-12 04:59:49 C 21 37 32.59 +06 02 01.6 – o H06
2004-09-12 05:15:53 C 21 37 06.63 +06 01 43.6 18.5 c 704
2004-09-12 05:33:32 C 21 36 36.79 +06 01 36.2 17.9 c 704
2004-09-12 05:50:16 C 21 36 08.06 +06 01 28.4 17.8 c 704
2004-09-12 05:50:39 C 21 36 10.32 +06 01 56.0 – c 651
2004-09-12 05:51:57 C 21 36 08.06 +06 01 55.5 – c 651
2004-09-12 05:52:54 C 21 36 06.37 +06 01 55.0 – c 651
2004-09-12 06:59:47 C 21 33 58.60 +05 59 39.2 – r H36
2004-09-12 07:03:07 C 21 33 52.43 +05 59 37.1 – r H36
2004-09-12 07:06:29 C 21 33 46.56 +05 59 34.4 – r H36
2004-09-12 07:28:02 C 21 33 11.18 +06 00 42.1 – m H07
2004-09-12 07:28:30 C 21 33 10.38 +06 00 40.9 – m H07
2004-09-12 07:29:26 C 21 33 08.75 +06 00 40.6 – m H07
2004-09-12 20:14:21 C 21 00 01.29 +05 41 13.8 – c 611
2004-09-12 20:16:18 C 20 59 52.70 +05 41 09.0 – c 611
2004-09-12 20:16:56 C 20 59 49.84 +05 41 06.9 – c 611
2004-09-12 20:18:18 C 20 59 43.72 +05 41 04.2 – c 611
2004-09-12 20:19:01 C 20 59 40.60 +05 41 02.5 – c 611
2004-09-12 20:19:33 C 20 59 38.20 +05 41 00.1 – c 611
2004-09-12 20:20:51 C 20 59 32.30 +05 40 57.5 – c 611
2004-09-12 20:21:24 C 20 59 29.93 +05 40 56.1 – c 611
2004-09-12 20:21:59 C 20 59 27.36 +05 40 54.9 – c 611
2004-09-12 20:23:04 C 20 59 22.42 +05 40 51.7 – c 611
2004-09-12 20:23:39 C 20 59 19.85 +05 40 51.0 – c 611
2004-09-12 20:24:15 C 20 59 17.21 +05 40 49.6 – c 611
2004-09-12 20:24:47 C 20 59 14.73 +05 40 47.3 – c 611
2004-09-12 20:25:24 C 20 59 11.97 +05 40 46.5 – c 611
2004-09-12 20:26:03 C 20 59 09.09 +05 40 44.7 – c 611
2004-09-12 20:26:44 C 20 59 05.95 +05 40 43.3 – c 611
2004-09-12 20:27:20 C 20 59 03.22 +05 40 41.3 – c 611
2004-09-12 20:28:14 C 20 58 59.17 +05 40 39.3 – c 611