275558 (1999 RH33)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1708172210 ± 2.91e-08
Semi-major axis (a)1.5511527597 AU ± 3.11e-09
Inclination (i)11.01744977° ± 2.29e-06
Long. of Asc. Node (Ω)168.30506082° ± 8.75e-06
Arg. of Perihelion (ω)351.54580697° ± 1.13e-05
Mean Anomaly (M)35.12160020° ± 9.87e-06
Mean Motion (n)0.5101882137°/day ± 1.53e-09
Perihelion dist (q)1.28618916 AU ± 4.53e-08
Aphelion dist (Q)1.81611636 AU ± 4.53e-08
Orbital Period1.93188760 yr ± 5.80e-09
Physical Parameters
H (abs. magnitude)19.06
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.289″
Uncertainty0
Orbit TypeAmor
MOID0.295104 AU
Observations Used462
Oppositions19
Arc Total1985-2024
First Observation Used1999-09-05
Last Observation Used2024-09-07
Observations (516)
Date Type RA Dec Mag Band Observatory
1985-02-28 16:15:00 12 55 16.77 -05 33 40.8 413
1985-02-28 17:50:01 12 55 19.64 -05 31 46.9 413
1999-09-05 10:15:23 C 23 39 00.26 -01 57 16.1 i 691
1999-09-05 10:45:57 C 23 38 58.74 -01 57 38.4 i 691
1999-09-05 11:16:22 C 23 38 57.25 -01 58 00.6 i 691
1999-09-10 10:09:44 C 23 33 06.96 -03 26 41.3 i 691
1999-09-10 10:17:30 C 23 33 06.58 -03 26 47.4 i 691
1999-09-10 10:25:29 C 23 33 06.14 -03 26 53.5 i 691
1999-09-12 07:35:32 C 23 30 48.79 -04 01 17.3 c 658
1999-09-12 07:42:50 C 23 30 48.40 -04 01 22.8 c 658
1999-09-15 07:52:00 C 23 27 06.05 -04 56 18.8 c 658
1999-09-15 08:00:49 C 23 27 05.54 -04 56 25.6 c 658
1999-09-15 08:10:01 C 23 27 05.03 -04 56 32.3 c 658
1999-09-18 08:15:49 C 23 23 22.86 -05 50 57.6 i 691
1999-09-18 08:21:40 C 23 23 22.66 -05 51 01.8 i 691
1999-09-20 07:34:46 C 23 20 59.46 -06 26 13.9 c 658
1999-09-20 07:46:05 C 23 20 58.84 -06 26 23.7 c 658
1999-09-21 10:33:10 C 23 19 38.29 -06 46 02.9 c 658
1999-09-21 10:44:41 C 23 19 37.94 -06 46 10.4 c 658
1999-09-21 10:53:23 C 23 19 37.26 -06 46 16.1 c 658
1999-10-05 02:52:03 C 23 05 22.51 -10 20 21.1 b 691
1999-10-05 02:57:52 C 23 05 22.32 -10 20 25.6 b 691
1999-10-06 14:03:27 C 23 04 09.69 -10 39 21.0 413
1999-10-06 14:07:47 C 23 04 09.49 -10 39 23.6 413
1999-10-07 13:00:41 C 23 03 25.24 -10 51 23.9 413
1999-10-07 13:05:24 C 23 03 25.07 -10 51 25.9 413
1999-10-17 14:14:32 C 22 57 49.24 -12 34 46.7 413
1999-10-17 14:19:54 C 22 57 49.20 -12 34 49.6 413
2001-09-22 07:18:48 C 00 40 20.74 -02 40 02.0 d 691
2001-09-22 07:25:33 C 00 40 20.43 -02 40 07.3 d 691
2001-09-22 07:32:13 C 00 40 20.07 -02 40 13.0 d 691
2001-09-25 07:26:09 C 00 36 49.75 -03 36 18.7 d 691
2001-09-25 07:36:09 C 00 36 49.19 -03 36 26.4 d 691
2001-09-25 07:42:20 C 00 36 48.86 -03 36 30.7 d 691
2001-09-27 06:20:51 C 00 34 28.50 -04 12 50.8 o 644
2001-10-08 08:11:35 C 00 20 53.49 -07 29 22.3 o 644
2001-10-24 05:41:14 C 00 04 58.35 -10 58 42.4 o 644
2003-09-28 08:55:34 C 01 59 11.717 +00 25 21.21 e 645
2003-09-28 09:00:34 C 01 59 11.534 +00 25 17.52 21.77 e 645
2003-09-30 08:10:47 C 01 57 35.096 -00 10 19.55 e 645
2003-09-30 08:15:47 C 01 57 34.915 -00 10 23.20 22.01 e 645
2003-10-20 11:19:29 C 01 34 51.95 -06 17 45.8 c 474
2003-10-20 11:22:30 C 01 34 51.76 -06 17 47.1 c 474
2003-10-20 11:25:29 C 01 34 51.62 -06 17 48.9 c 474
2003-10-20 11:29:19 C 01 34 51.38 -06 17 51.6 c 474
2005-09-24 10:13:28 C 03 20 41.94 +05 32 03.7 d 291
2005-09-24 10:21:14 C 03 20 42.01 +05 31 59.4 d 291
2005-09-24 10:29:28 C 03 20 42.10 +05 31 54.4 d 291
2005-10-14 10:54:34 C 03 16 49.793 +00 07 38.02 e 645
2005-10-14 10:59:34 C 03 16 49.650 +00 07 34.32 21.72 e 645