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
2012-07-09 23:09:20 C 10 35 45.96 -39 51 31.0 u 807
2013-09-13 05:08:12 C 03 14 46.15 -65 30 48.0 r Y00
2013-09-13 05:10:26 C 03 14 46.16 -65 30 52.7 r Y00
2013-09-13 05:12:39 C 03 14 45.99 -65 30 57.3 r Y00
2013-09-15 06:01:43 C 03 11 42.09 -67 13 56.4 r Y00
2013-09-15 06:03:53 C 03 11 41.91 -67 14 01.1 r Y00
2013-09-15 06:06:02 C 03 11 41.62 -67 14 05.2 r Y00
2013-09-27 02:13:56 C 02 10 45.08 -77 43 13.3 r Y00
2013-09-27 02:16:53 C 02 10 43.58 -77 43 19.5 r Y00
2013-09-27 02:19:01 C 02 10 42.47 -77 43 24.4 r Y00
2013-10-20 22:30:00 C 18 00 48.22 -66 52 56.3 r Y00
2013-10-20 22:31:31 C 18 00 47.78 -66 52 50.7 r Y00
2013-10-20 22:32:57 C 18 00 47.32 -66 52 45.7 r Y00
2017-06-21 19:01:24 S 02 06 26.80 -50 18 47.9 L C51
2017-06-21 22:10:05 S 02 06 39.62 -50 24 41.7 L C51
2017-06-22 01:18:36 S 02 06 52.40 -50 30 36.3 L C51
2017-06-22 06:01:32 S 02 07 11.90 -50 39 27.6 L C51
2017-06-22 07:35:47 S 02 07 18.18 -50 42 25.6 L C51
2017-06-22 13:52:58 S 02 07 43.98 -50 54 13.7 L C51
2017-06-22 15:27:13 S 02 07 50.21 -50 57 09.6 L C51
2017-06-22 18:35:43 S 02 08 03.06 -51 03 04.8 L C51
2017-06-22 18:35:54 S 02 08 03.12 -51 03 03.7 L C51
2017-07-23 17:11:13 C 02 40 16.85 -73 43 14.0 U Q62
2017-07-23 17:53:19 C 02 40 15.21 -73 44 30.4 U Q62
2021-06-11 22:50:28 C 08 01 23.45 +10 18 52.1 W84
2021-06-11 22:51:16 C 08 01 23.64 +10 18 49.0 W84
2021-06-11 22:52:27 C 08 01 23.90 +10 18 44.2 W84
2021-06-11 22:54:39 C 08 01 24.39 +10 18 35.8 W84
2021-06-11 23:01:05 C 08 01 25.79 +10 18 10.9 W84
2021-06-11 23:05:15 C 08 01 26.73 +10 17 54.6 W84
2022-07-20 09:27:55 C 02 15 18.65 -37 19 52.4 V W94
2022-07-20 09:36:16 C 02 15 19.30 -37 19 59.2 V W94
2022-07-20 09:44:32 C 02 15 19.90 -37 20 05.9 V W94
2022-07-24 09:14:39 C 02 22 33.593 -38 41 23.42 V W68
2022-07-24 09:18:21 C 02 22 33.830 -38 41 26.27 V W68
2022-07-24 09:26:23 C 02 22 34.380 -38 41 33.58 V W68
2022-07-24 09:49:45 C 02 22 36.043 -38 41 54.74 V W68
2022-07-25 02:16:23 C 02 23 49.229 -38 56 36.49 V M22
2022-07-25 02:22:15 C 02 23 49.574 -38 56 42.47 V M22
2022-07-25 02:22:54 C 02 23 49.697 -38 56 42.90 V M22
2022-07-25 02:23:33 C 02 23 49.620 -38 56 43.48 V M22
2022-08-01 09:01:02 C 02 36 04.33 -41 47 15.0 V W94
2022-08-01 09:09:23 C 02 36 04.82 -41 47 23.9 V W94
2022-08-01 09:17:35 C 02 36 05.32 -41 47 32.8 V W94
2022-08-23 00:32:46 C 03 02 26.539 -53 00 49.32 V M22
2022-08-23 00:37:21 C 03 02 26.618 -53 00 57.02 V M22
2022-08-23 01:18:07 C 03 02 27.542 -53 02 01.82 V M22
2022-08-23 01:38:50 C 03 02 27.967 -53 02 34.84 V M22
2022-08-25 06:27:06 C 03 03 48.154 -54 26 18.64 V W68
2022-08-25 07:16:16 C 03 03 48.902 -54 27 39.85 V W68