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
2010-04-14 21:53:20 S 08 09 42.71 +20 58 10.8 L C51
2010-04-15 01:03:51 S 08 10 07.354 +20 58 54.12 L C51
2010-05-04 03:40:28 C 09 10 39.06 +21 24 00.6 o 691
2010-05-04 04:03:30 C 09 10 42.06 +21 23 58.1 o 691
2010-05-04 04:26:30 C 09 10 45.12 +21 23 56.2 o 691
2012-01-03 08:11:15 C 09 29 33.64 -11 24 11.3 r 703
2012-01-03 08:22:38 C 09 29 33.97 -11 24 16.0 r 703
2012-01-03 08:34:16 C 09 29 34.40 -11 24 19.4 r 703
2012-01-03 08:45:48 C 09 29 34.69 -11 24 21.7 r 703
2012-02-12 06:04:14 C 09 35 39.57 -05 36 01.3 u 844
2012-02-12 06:11:53 C 09 35 39.47 -05 35 52.7 u 844
2012-02-12 06:17:42 C 09 35 39.36 -05 35 46.2 u 844
2012-02-12 06:24:48 C 09 35 39.30 -05 35 38.5 u 844
2012-02-12 09:37:17 C 09 35 38.345 -05 32 13.58 L F51
2012-02-12 09:54:08 C 09 35 38.021 -05 31 53.46 L F51
2012-02-12 10:47:23 C 09 35 37.017 -05 30 49.90 L F51
2012-02-12 11:05:41 C 09 35 36.665 -05 30 27.96 L F51
2012-02-14 22:10:07 C 09 34 56.48 -04 17 06.6 c A24
2012-02-15 00:08:28 C 09 34 54.52 -04 14 35.0 c A24
2012-02-16 21:42:40 C 09 34 24.76 -03 14 06.3 c A24
2012-02-16 23:24:07 C 09 34 23.15 -03 11 48.4 c A24
2012-02-16 23:25:09 C 09 34 23.21 -03 11 47.1 c A24
2012-02-17 21:50:25 C 09 34 09.52 -02 40 54.5 c A24
2012-02-17 21:51:27 C 09 34 09.51 -02 40 54.3 c A24
2012-02-18 08:06:48 C 09 34 02.22 -02 26 32.0 18.6 c 704
2012-02-21 06:13:42 C 09 33 24.54 -00 45 23.8 u 448
2012-02-21 06:18:49 C 09 33 24.46 -00 45 16.5 u 448
2012-02-21 06:23:55 C 09 33 24.37 -00 45 08.9 u 448
2012-02-21 06:29:03 C 09 33 24.31 -00 45 01.5 u 448
2012-02-21 06:34:23 C 09 33 24.23 -00 44 53.4 u 448
2012-02-21 23:16:36 C 09 33 16.39 -00 20 09.6 r 203
2012-02-21 23:52:42 C 09 33 15.91 -00 19 15.7 r 203
2012-02-23 00:55:09 C 09 33 05.41 +00 18 23.9 c A24
2012-02-23 00:56:11 C 09 33 05.39 +00 18 25.6 c A24
2012-02-23 06:39:15 C 09 33 04.30 +00 27 09.2 o G56
2012-02-23 06:51:44 C 09 33 04.15 +00 27 26.1 o G56
2012-02-23 07:02:46 C 09 33 04.03 +00 27 44.2 o G56
2012-02-23 07:11:43 C 09 33 03.95 +00 27 56.6 o G56
2012-02-25 06:31:54 C 09 32 50.20 +01 40 28.8 r 703
2012-02-25 06:41:37 C 09 32 50.10 +01 40 44.0 r 703
2012-02-25 06:51:26 C 09 32 49.99 +01 40 58.8 r 703
2012-02-25 07:01:19 C 09 32 49.88 +01 41 14.4 r 703
2012-02-26 22:10:30 C 09 32 44.42 +02 41 56.4 c A24
2012-02-26 22:11:32 C 09 32 44.41 +02 41 56.6 c A24
2012-02-26 23:35:39 C 09 32 43.83 +02 44 07.3 c A24
2012-02-26 23:36:42 C 09 32 43.84 +02 44 08.8 c A24
2012-03-02 22:31:38 C 09 33 02.95 +05 49 50.6 r 203
2012-03-02 23:11:30 C 09 33 02.98 +05 50 51.9 r 203
2012-03-11 01:08:53 C 09 35 52.53 +10 40 56.8 u I17
2012-03-11 01:43:50 C 09 35 53.13 +10 41 46.5 u I17