1999 RU2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5603964572 ± 6.14e-05
Semi-major axis (a)2.8057229895 AU ± 2.24e-04
Inclination (i)5.45151117° ± 3.98e-04
Long. of Asc. Node (Ω)179.41905784° ± 6.65e-05
Arg. of Perihelion (ω)202.97216216° ± 5.75e-04
Mean Anomaly (M)193.41705602° ± 2.84e-01
Mean Motion (n)0.2097225309°/day ± 2.51e-05
Perihelion dist (q)1.23340577 AU ± 1.98e-04
Aphelion dist (Q)4.37804021 AU ± 3.89e-04
Orbital Period4.69966808 yr ± 5.62e-04
Physical Parameters
H (abs. magnitude)20.48
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.503″
Uncertainty3
Orbit TypeAmor
MOID0.237172 AU
Observations Used143
Oppositions1
Arc Total1999-1999
First Observation Used1999-09-04
Last Observation Used1999-11-04
Observations (145)
Date Type RA Dec Mag Band Observatory
1999-09-09 10:50:12 C 23 30 55.31 +01 52 11.3 19.4 a 704
1999-09-09 11:09:35 C 23 30 56.31 +01 52 04.2 19.3 a 704
1999-09-10 08:03:47 C 23 32 08.38 +01 44 35.8 18.6 a 704
1999-09-10 08:19:58 C 23 32 09.19 +01 44 29.5 18.9 a 704
1999-09-10 08:35:57 C 23 32 10.03 +01 44 23.0 19.3 a 704
1999-09-11 21:29:47 C 23 34 19.50 +01 30 16.9 595
1999-09-11 21:39:54 C 23 34 20.06 +01 30 12.5 595
1999-09-11 21:48:42 C 23 34 20.46 +01 30 09.1 595
1999-09-12 13:47:59 C 23 35 17.47 +01 23 49.5 360
1999-09-12 13:54:59 C 23 35 17.85 +01 23 46.8 360
1999-09-12 14:00:15 C 23 35 18.13 +01 23 44.5 360
1999-09-13 07:51:19 C 23 36 22.17 +01 16 18.3 848
1999-09-13 07:58:15 C 23 36 22.55 +01 16 14.8 848
1999-09-13 08:04:52 C 23 36 22.92 +01 16 12.4 848
1999-09-14 05:59:42 C 23 37 43.94 +01 06 48.3 c 658
1999-09-14 06:06:52 C 23 37 44.36 +01 06 45.4 c 658
1999-09-14 06:07:56 C 23 37 44.15 +01 06 49.6 18.5 a 704
1999-09-14 06:13:09 C 23 37 44.74 +01 06 42.4 c 658
1999-09-14 06:26:11 C 23 37 45.09 +01 06 42.0 18.6 a 704
1999-09-14 06:44:28 C 23 37 46.19 +01 06 33.9 19.1 a 704
1999-09-14 07:02:49 C 23 37 47.12 +01 06 26.1 18.9 a 704
1999-09-14 07:21:19 C 23 37 48.14 +01 06 17.7 18.9 a 704
1999-09-14 21:38:01 C 23 38 42.04 +00 59 55.4 595
1999-09-14 22:00:40 C 23 38 43.20 +00 59 44.8 595
1999-09-14 22:20:36 C 23 38 44.44 +00 59 35.8 595
1999-09-15 00:15:50 C 23 38 50.98 +00 58 43.0 d 046
1999-09-15 00:18:19 C 23 38 51.08 +00 58 42.2 d 046
1999-09-15 07:59:46 C 23 39 20.65 +00 55 16.9 848
1999-09-15 08:06:04 C 23 39 20.95 +00 55 14.2 848
1999-09-15 08:15:06 C 23 39 21.56 +00 55 10.7 848
1999-09-15 22:11:46 C 23 40 14.88 +00 48 44.6 c 118
1999-09-15 22:21:26 C 23 40 15.47 +00 48 40.4 c 118
1999-09-15 22:29:00 C 23 40 15.91 +00 48 37.5 c 118
1999-09-16 09:33:36 C 23 40 57.97 +00 43 28.1 848
1999-09-16 09:39:21 C 23 40 58.29 +00 43 25.8 848
1999-09-16 09:52:05 C 23 40 58.98 +00 43 18.7 848
1999-09-17 07:36:10 C 23 42 24.84 +00 32 57.4 848
1999-09-17 07:41:59 C 23 42 25.19 +00 32 53.9 848
1999-09-17 07:48:54 C 23 42 25.66 +00 32 51.0 848
1999-09-18 07:06:27 C 23 43 58.83 +00 21 26.3 848
1999-09-18 07:12:00 C 23 43 59.21 +00 21 23.2 848
1999-09-18 07:19:37 C 23 43 59.65 +00 21 20.0 848
1999-09-19 09:19:09 C 23 45 44.81 +00 08 12.1 848
1999-09-19 09:28:46 C 23 45 45.49 +00 08 07.6 848
1999-09-19 09:37:07 C 23 45 45.94 +00 08 02.7 848
1999-09-20 07:23:28 C 23 47 17.56 -00 03 11.9 848
1999-09-20 07:29:00 C 23 47 17.91 -00 03 15.5 848
1999-09-20 07:36:57 C 23 47 18.38 -00 03 19.5 848
1999-09-21 00:43:14 C 23 48 30.31 -00 12 22.7 012
1999-09-21 00:52:00 C 23 48 30.86 -00 12 27.4 012