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
1999-09-04 07:21:25 c 23 24 18.30 +02 29 14.5 d 703
1999-09-04 07:37:56 c 23 24 19.00 +02 29 08.9 d 703
1999-09-04 07:54:31 c 23 24 19.87 +02 29 04.9 d 703
1999-09-04 08:11:09 c 23 24 20.60 +02 29 00.2 d 703
1999-09-04 21:08:33 C 23 25 01.62 +02 25 35.7 557
1999-09-04 21:11:53 C 23 25 01.81 +02 25 35.0 557
1999-09-04 21:15:14 C 23 25 01.97 +02 25 34.1 557
1999-09-04 21:18:37 C 23 25 02.11 +02 25 33.0 557
1999-09-04 21:24:22 C 23 25 02.43 +02 25 31.6 d 046
1999-09-04 21:37:16 C 23 25 03.02 +02 25 29.1 d 046
1999-09-04 21:40:18 C 23 25 03.16 +02 25 28.1 d 046
1999-09-04 21:48:52 C 23 25 03.54 +02 25 25.5 d 046
1999-09-05 00:36:11 C 23 25 12.75 +02 25 10.5 z 859
1999-09-05 00:49:16 C 23 25 13.51 +02 25 06.5 z 859
1999-09-05 01:00:58 C 23 25 14.07 +02 25 03.3 z 859
1999-09-05 21:00:23 C 23 26 16.72 +02 19 09.1 557
1999-09-05 21:03:14 C 23 26 16.90 +02 19 08.2 557
1999-09-05 21:06:04 C 23 26 17.03 +02 19 06.4 557
1999-09-05 23:51:00 C 23 26 24.98 +02 18 20.8 d 046
1999-09-05 23:55:22 C 23 26 25.20 +02 18 19.8 d 046
1999-09-05 23:57:27 C 23 26 25.31 +02 18 19.3 d 046
1999-09-05 23:59:34 C 23 26 25.37 +02 18 18.5 d 046
1999-09-06 02:25:35 C 23 26 34.66 +02 17 39.1 734
1999-09-06 02:37:50 C 23 26 35.24 +02 17 37.7 734
1999-09-06 02:49:37 C 23 26 35.67 +02 17 36.3 734
1999-09-06 05:46:35 C 23 26 44.81 +02 16 38.9 c 658
1999-09-06 05:50:26 C 23 26 44.99 +02 16 38.1 c 658
1999-09-06 05:55:39 C 23 26 45.20 +02 16 37.3 c 658
1999-09-07 01:47:58 C 23 27 48.94 +02 11 13.8 z 859
1999-09-07 02:02:55 C 23 27 49.76 +02 11 10.5 z 859
1999-09-07 08:34:35 C 23 28 09.82 +02 08 45.8 19.6 a 704
1999-09-07 08:51:39 C 23 28 10.62 +02 08 39.0 20.1 a 704
1999-09-07 09:08:51 C 23 28 11.44 +02 08 31.9 20.1 a 704
1999-09-07 21:34:19 C 23 28 53.20 +02 04 34.3 557
1999-09-07 21:36:51 C 23 28 53.30 +02 04 33.7 557
1999-09-07 21:39:23 C 23 28 53.48 +02 04 32.6 557
1999-09-08 00:09:19 C 23 29 00.87 +02 03 45.7 595
1999-09-08 00:18:33 C 23 29 01.35 +02 03 42.8 595
1999-09-08 00:28:35 C 23 29 01.88 +02 03 39.0 595
1999-09-08 06:32:03 C 23 29 22.49 +02 01 46.7 18.8 a 704
1999-09-08 06:52:07 C 23 29 23.41 +02 01 39.8 18.8 a 704
1999-09-08 07:12:02 C 23 29 24.45 +02 01 32.8 19.4 a 704
1999-09-08 07:31:35 C 23 29 25.35 +02 01 25.8 19.1 a 704
1999-09-09 06:41:34 C 23 30 42.83 +01 53 37.1 19.1 a 704
1999-09-09 07:01:55 C 23 30 43.87 +01 53 31.1 19.5 a 704
1999-09-09 07:22:22 C 23 30 44.85 +01 53 23.5 19.1 a 704
1999-09-09 07:42:52 C 23 30 45.90 +01 53 17.1 19.0 a 704
1999-09-09 09:51:27 C 23 30 52.30 +01 52 32.0 18.9 a 704
1999-09-09 10:10:58 C 23 30 53.29 +01 52 25.1 19.1 a 704
1999-09-09 10:30:38 C 23 30 54.35 +01 52 18.7 19.3 a 704