333888 (1998 ST4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5911401060 ± 7.81e-09
Semi-major axis (a)2.8361713679 AU ± 4.49e-09
Inclination (i)9.14717990° ± 1.43e-06
Long. of Asc. Node (Ω)238.61081131° ± 5.90e-06
Arg. of Perihelion (ω)207.96148352° ± 6.56e-06
Mean Anomaly (M)235.43022484° ± 2.02e-06
Mean Motion (n)0.2063543240°/day ± 4.90e-10
Perihelion dist (q)1.15959672 AU ± 2.22e-08
Aphelion dist (Q)4.51274601 AU ± 2.33e-08
Orbital Period4.77637815 yr ± 1.13e-08
Physical Parameters
H (abs. magnitude)16.81
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.197″
Uncertainty0
Orbit TypeAmor
MOID0.187482 AU
Observations Used835
Oppositions20
Arc Total1998-2023
First Observation Used1998-08-18
Last Observation Used2023-05-24
Observations (1116)
Date Type RA Dec Mag Band Observatory
2003-09-29 11:15:29 C 06 57 38.37 +25 12 10.9 19.0 c 704
2003-09-29 11:34:13 C 06 57 42.07 +25 11 56.1 18.7 c 704
2003-10-06 10:39:50 C 07 30 47.42 +22 46 53.0 m 333
2003-10-06 11:11:37 C 07 30 53.61 +22 46 21.9 m 333
2003-10-06 11:43:22 C 07 30 59.83 +22 45 51.8 m 333
2003-10-12 11:11:30 C 07 58 35.20 +20 16 21.7 c 926
2003-10-12 11:12:52 C 07 58 35.46 +20 16 20.0 c 926
2003-10-12 11:14:23 C 07 58 35.73 +20 16 18.5 c 926
2003-10-15 10:59:06 C 08 12 00.22 +18 54 20.2 o 699
2003-10-15 11:17:04 C 08 12 03.44 +18 53 59.7 o 699
2003-10-15 11:34:58 C 08 12 06.77 +18 53 38.8 o 699
2003-10-15 11:53:00 C 08 12 10.11 +18 53 17.8 o 699
2003-11-01 10:29:09 C 09 21 52.53 +10 13 07.4 19.2 c 704
2003-11-01 10:46:25 C 09 21 55.12 +10 12 46.9 20.0 c 704
2003-11-01 11:03:37 C 09 21 57.78 +10 12 22.1 19.0 c 704
2003-11-01 11:20:48 C 09 22 00.44 +10 11 58.8 18.9 c 704
2003-11-01 11:38:14 C 09 22 03.16 +10 11 35.7 18.6 c 704
2003-11-02 11:31:33 C 09 25 47.28 +09 39 38.2 c 670
2003-11-02 12:48:31 C 09 25 59.03 +09 37 56.1 c 670
2003-11-29 11:26:00 C 10 52 02.73 -04 01 05.6 19.5 c 704
2003-11-29 11:42:15 C 10 52 04.54 -04 01 23.7 19.0 c 704
2003-11-29 11:58:31 C 10 52 06.32 -04 01 41.9 19.0 c 704
2003-11-29 12:14:50 C 10 52 08.10 -04 02 00.5 18.7 c 704
2003-11-29 12:31:06 C 10 52 09.89 -04 02 18.3 19.2 c 704
2003-12-13 10:47:15 C 11 25 52.32 -09 51 45.4 18.3 c 704
2003-12-13 11:04:42 C 11 25 53.79 -09 52 00.3 18.6 c 704
2003-12-13 11:22:11 C 11 25 55.29 -09 52 16.7 18.5 c 704
2004-01-03 11:29:22 C 12 02 40.08 -16 36 51.1 18.3 c 704
2004-01-03 11:48:14 C 12 02 41.07 -16 37 03.3 18.4 c 704
2004-01-03 12:07:05 C 12 02 42.03 -16 37 15.5 18.7 c 704
2004-01-03 12:25:55 C 12 02 43.03 -16 37 27.4 18.9 c 704
2004-01-03 12:44:44 C 12 02 43.99 -16 37 39.6 19.6 c 704
2004-01-09 15:42:08 C 12 09 56.21 -18 06 21.9 t 608
2004-01-09 15:57:36 C 12 09 56.84 -18 06 30.8 t 608
2004-01-10 14:32:15 C 12 10 54.42 -18 18 56.1 t 608
2004-01-10 14:47:44 C 12 10 55.05 -18 19 04.9 t 608
2004-01-10 15:03:10 C 12 10 55.66 -18 19 13.6 t 608
2004-01-17 14:42:55 C 12 16 41.73 -19 41 03.5 t 608
2004-01-17 14:58:17 C 12 16 42.08 -19 41 09.7 t 608
2004-01-17 15:13:32 C 12 16 42.48 -19 41 16.4 t 608
2004-01-27 11:26:37 C 12 20 40.91 -21 03 17.5 19.4 c 704
2004-01-27 11:44:45 C 12 20 40.99 -21 03 21.8 19.1 c 704
2004-01-27 12:02:50 C 12 20 41.10 -21 03 26.8 19.1 c 704
2004-01-27 12:20:51 C 12 20 41.15 -21 03 32.0 18.6 c 704
2004-03-17 07:33:59 C 11 41 34.18 -16 32 51.3 18.1 c 704
2004-03-17 07:50:21 C 11 41 33.34 -16 32 41.5 18.1 c 704
2004-03-17 08:06:38 C 11 41 32.58 -16 32 32.2 17.8 c 704
2004-03-17 08:22:51 C 11 41 31.88 -16 32 19.8 19.0 c 704
2004-03-17 08:39:07 C 11 41 31.09 -16 32 12.4 18.1 c 704
2004-03-31 05:28:26 C 11 29 04.78 -13 07 12.2 18.7 c 704