333478 (2004 SD20)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4649177120 ± 5.54e-08
Semi-major axis (a)0.8754348717 AU ± 5.79e-10
Inclination (i)21.32997588° ± 5.61e-06
Long. of Asc. Node (Ω)46.54777428° ± 1.88e-05
Arg. of Perihelion (ω)94.50864611° ± 1.70e-05
Mean Anomaly (M)200.11756506° ± 9.25e-06
Mean Motion (n)1.2033071936°/day ± 1.19e-09
Perihelion dist (q)0.46842969 AU ± 4.85e-08
Aphelion dist (Q)1.28244005 AU ± 4.85e-08
Orbital Period0.81909781 yr ± 8.12e-10
Physical Parameters
H (abs. magnitude)18.05
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.259″
Uncertainty0
Orbit TypeAten
MOID0.181206 AU
Observations Used203
Oppositions5
Arc Total2004-2025
First Observation Used2004-09-21
Last Observation Used2025-09-17
Observations (231)
Date Type RA Dec Mag Band Observatory
2004-10-06 11:50:34 C 23 21 02.62 -85 26 57.2 r E12
2004-10-06 11:51:36 C 23 20 59.65 -85 26 57.9 r E12
2004-10-06 11:52:35 C 23 20 56.79 -85 26 59.2 r E12
2004-10-06 11:53:38 C 23 20 53.60 -85 26 59.9 r E12
2004-10-07 10:58:36 C 22 13 14.09 -85 33 48.0 r E12
2004-10-07 10:59:38 C 22 13 11.02 -85 33 48.3 r E12
2004-10-07 11:00:38 C 22 13 07.82 -85 33 48.0 r E12
2004-10-07 11:01:39 C 22 13 04.78 -85 33 47.7 r E12
2004-10-07 11:23:07 C 22 11 58.15 -85 33 42.7 r E12
2004-10-07 11:24:29 C 22 11 53.69 -85 33 42.4 r E12
2004-10-07 11:25:48 C 22 11 49.77 -85 33 41.9 r E12
2004-10-07 11:27:10 C 22 11 45.42 -85 33 42.0 r E12
2004-10-08 09:33:32 C 21 08 02.44 -85 17 17.8 r E12
2004-10-08 09:36:32 C 21 07 55.75 -85 17 16.3 r E12
2004-10-08 09:38:46 C 21 07 47.84 -85 17 11.4 r E12
2004-10-08 09:39:47 C 21 07 45.30 -85 17 10.4 r E12
2004-10-08 09:40:47 C 21 07 42.42 -85 17 08.8 r E12
2004-10-08 09:41:48 C 21 07 39.44 -85 17 07.5 r E12
2004-10-09 09:20:30 C 20 10 09.47 -84 37 41.7 r E12
2004-10-09 09:23:11 C 20 10 03.91 -84 37 35.8 r E12
2004-10-09 09:25:51 C 20 09 57.48 -84 37 29.5 r E12
2004-10-11 09:31:38 C 18 53 06.94 -82 30 42.6 r E12
2004-10-11 09:35:00 C 18 53 02.83 -82 30 31.9 r E12
2004-10-11 09:38:21 C 18 52 58.86 -82 30 21.2 r E12
2004-10-11 09:41:44 C 18 52 54.72 -82 30 10.7 r E12
2005-07-04 19:40:29 C 02 57 05.25 -01 45 19.6 r 413
2005-07-04 19:45:25 C 02 57 05.90 -01 45 15.9 r 413
2005-07-06 19:56:15 C 03 03 25.927 -01 09 03.74 r 413
2008-05-20 14:20:48 C 01 09 50.28 -23 11 00.5 r F85
2008-05-20 14:51:56 C 01 09 51.36 -23 12 22.3 r F85
2008-05-20 15:23:54 C 01 09 52.33 -23 13 45.7 r F85
2008-05-21 14:57:32 C 01 10 44.40 -24 14 24.8 r F85
2008-05-21 15:10:17 C 01 10 44.82 -24 14 57.2 r F85
2008-05-21 15:23:46 C 01 10 45.34 -24 15 33.3 r F85
2008-08-08 13:55:17 C 01 23 09.31 -81 45 54.9 r E18
2008-08-08 14:14:58 C 01 22 59.30 -81 46 21.6 r E18
2008-08-08 14:36:04 C 01 22 48.35 -81 46 50.3 r E18
2008-08-09 13:54:31 C 01 10 23.32 -82 15 56.6 r E18
2008-08-09 14:22:55 C 01 10 06.96 -82 16 32.5 r E18
2012-07-08 23:02:35 C 10 29 43.46 -38 43 38.3 u 807
2012-07-08 23:05:52 C 10 29 44.26 -38 43 47.7 u 807
2012-07-08 23:09:09 C 10 29 45.07 -38 43 57.0 u 807
2012-07-08 23:12:24 C 10 29 45.86 -38 44 06.2 u 807
2012-07-08 23:15:38 C 10 29 46.66 -38 44 15.4 u 807
2012-07-08 23:18:54 C 10 29 47.46 -38 44 24.6 u 807
2012-07-08 23:21:30 C 10 29 48.10 -38 44 32.0 u 807
2012-07-09 22:54:31 C 10 35 42.34 -39 50 50.8 u 807
2012-07-09 22:57:29 C 10 35 43.05 -39 50 58.8 u 807
2012-07-09 23:01:45 C 10 35 44.10 -39 51 10.4 u 807
2012-07-09 23:04:02 C 10 35 44.66 -39 51 16.6 u 807