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
2004-09-21 17:52:06 C 03 25 17.82 -71 02 27.4 r E12
2004-09-21 18:08:33 C 03 25 16.10 -71 03 07.4 r E12
2004-09-21 18:24:58 C 03 25 14.47 -71 03 47.2 r E12
2004-09-21 18:41:24 C 03 25 12.76 -71 04 28.4 r E12
2004-09-21 19:00:01 C 03 25 10.75 -71 05 12.5 r E12
2004-09-21 19:00:40 C 03 25 10.83 -71 05 14.9 r E12
2004-09-21 19:01:22 C 03 25 10.75 -71 05 16.2 r E12
2004-09-21 19:02:02 C 03 25 10.49 -71 05 17.3 r E12
2004-09-22 00:11:42 C 03 24 49.90 -71 17 33.7 d I05
2004-09-22 00:13:06 C 03 24 49.75 -71 17 37.4 d I05
2004-09-22 00:14:30 C 03 24 49.61 -71 17 41.0 d I05
2004-09-22 00:22:53 C 03 24 48.98 -71 18 02.4 d I05
2004-09-22 00:24:18 C 03 24 48.89 -71 18 05.7 d I05
2004-09-22 15:59:19 C 03 23 18.23 -71 57 20.9 r E12
2004-09-22 16:00:40 C 03 23 18.08 -71 57 24.7 r E12
2004-09-22 16:02:01 C 03 23 17.83 -71 57 28.3 r E12
2004-09-22 16:03:20 C 03 23 17.71 -71 57 31.7 r E12
2004-09-22 16:06:53 C 03 23 17.22 -71 57 40.1 r E12
2004-09-22 16:07:53 C 03 23 17.21 -71 57 42.7 r E12
2004-09-22 16:17:35 C 03 23 16.01 -71 58 07.6 r E12
2004-09-22 16:18:55 C 03 23 15.97 -71 58 11.4 r E12
2004-09-22 16:20:15 C 03 23 15.64 -71 58 14.6 r E12
2004-09-22 16:21:37 C 03 23 15.46 -71 58 18.1 r E12
2004-09-22 18:23:12 C 03 23 00.62 -72 03 21.8 r E12
2004-09-22 18:24:33 C 03 23 00.49 -72 03 25.4 r E12
2004-09-22 18:25:56 C 03 23 00.35 -72 03 28.6 r E12
2004-09-22 18:27:16 C 03 23 00.04 -72 03 32.0 r E12
2004-09-25 03:45:31 C 03 15 41.93 -74 29 34.3 c 844
2004-09-25 03:47:45 C 03 15 41.39 -74 29 38.6 c 844
2004-09-25 03:49:53 C 03 15 41.22 -74 29 44.8 c 844
2004-09-25 03:52:37 C 03 15 40.79 -74 29 52.6 c 844
2004-09-25 03:58:01 C 03 15 39.81 -74 30 06.1 c 844
2004-09-25 11:55:08 C 03 14 22.646 -74 50 36.03 r 413
2004-09-25 11:57:11 C 03 14 22.301 -74 50 41.66 r 413
2004-09-25 17:57:32 C 03 13 11.497 -75 06 38.71 r 413
2004-09-25 18:03:10 C 03 13 10.344 -75 06 53.25 r 413
2004-09-26 14:41:59 C 03 09 12.459 -76 01 07.05 r 413
2004-09-26 14:42:39 C 03 09 12.275 -76 01 08.81 r 413
2004-09-26 14:43:21 C 03 09 12.154 -76 01 10.73 r 413
2004-09-26 17:40:03 C 03 08 28.93 -76 09 00.7 r 413
2004-09-26 17:43:21 C 03 08 28.13 -76 09 09.4 r 413
2004-09-26 17:46:10 C 03 08 27.39 -76 09 16.8 r 413
2004-09-27 18:31:09 C 03 02 23.23 -77 15 05.2 r 413
2004-09-27 18:32:24 C 03 02 22.86 -77 15 08.4 r 413
2004-09-27 18:33:38 C 03 02 22.48 -77 15 11.8 r 413
2004-09-28 16:20:19 C 02 55 52.34 -78 13 34.3 r 474
2004-09-28 16:21:19 C 02 55 51.98 -78 13 37.0 r 474
2004-09-28 16:21:59 C 02 55 51.73 -78 13 38.8 r 474
2004-09-28 16:22:40 C 02 55 51.59 -78 13 40.2 r 474
2004-09-28 16:24:19 C 02 55 50.96 -78 13 45.1 r 474