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
2017-10-29 09:14:19 C 00 02 42.25 +17 37 35.8 T05
2017-10-29 09:14:58 C 00 02 42.24 +17 37 35.1 T05
2017-10-29 09:15:51 C 00 02 42.22 +17 37 34.5 T05
2017-10-29 09:33:30 C 00 02 41.81 +17 37 20.3 T05
2017-10-29 09:34:10 C 00 02 41.79 +17 37 19.7 T05
2017-10-30 03:43:52 C 00 02 23.92 +17 22 38.7 U 703
2017-10-30 03:51:43 C 00 02 23.76 +17 22 32.4 U 703
2017-10-30 03:59:35 C 00 02 23.59 +17 22 26.0 U 703
2017-10-30 04:07:27 C 00 02 23.42 +17 22 19.6 U 703
2017-10-30 18:28:06 C 00 02 10.15 +17 10 31.2 U G34
2017-10-30 18:32:44 C 00 02 10.04 +17 10 27.5 U G34
2017-10-30 18:35:17 C 00 02 10.00 +17 10 25.4 U G34
2017-10-30 18:36:55 C 00 02 09.94 +17 10 24.0 U G34
2017-10-30 18:38:47 C 00 02 09.92 +17 10 23.0 U G34
2017-10-30 20:19:20 C 00 02 08.08 +17 09 02.9 q 160
2017-10-30 20:21:13 C 00 02 08.05 +17 09 01.2 q 160
2017-10-30 20:23:07 C 00 02 08.02 +17 08 59.6 q 160
2017-11-02 08:36:25 C 00 01 24.01 +16 18 37.6 T05
2017-11-02 08:49:44 C 00 01 23.85 +16 18 26.1 T05
2017-11-02 08:52:35 C 00 01 23.81 +16 18 23.5 T05
2017-11-02 09:11:10 C 00 01 23.54 +16 18 07.6 T05
2017-11-02 09:11:50 C 00 01 23.51 +16 18 07.5 T05
2017-11-02 09:12:29 C 00 01 23.51 +16 18 06.8 T05
2017-11-02 09:19:40 C 00 01 23.42 +16 18 00.5 T05
2017-11-02 09:20:19 C 00 01 23.39 +16 18 00.0 T05
2017-11-03 15:40:29 C 00 01 10.86 +15 51 48.7 q C97
2017-11-03 15:43:10 C 00 01 10.85 +15 51 46.5 q C97
2017-11-03 15:58:34 C 00 01 10.69 +15 51 33.3 q C97
2017-11-04 08:42:10 C 00 01 04.72 +15 36 57.8 U T08
2017-11-04 08:48:59 C 00 01 04.65 +15 36 51.7 U T08
2017-11-04 08:49:39 C 00 01 04.65 +15 36 50.9 U T08
2017-11-04 09:06:52 C 00 01 04.46 +15 36 35.8 U T08
2017-11-04 21:42:38 C 00 01 02.30 +15 25 19.8 U Z80
2017-11-04 21:44:43 C 00 01 02.30 +15 25 18.2 U Z80
2017-11-04 21:46:49 C 00 01 02.29 +15 25 16.5 U Z80
2017-11-04 21:48:54 C 00 01 02.26 +15 25 14.6 U Z80
2017-11-04 21:51:00 C 00 01 02.28 +15 25 13.7 U Z80
2017-11-04 21:53:06 C 00 01 02.25 +15 25 10.9 U Z80
2017-11-04 21:55:11 C 00 01 02.24 +15 25 09.3 U Z80
2017-11-04 21:57:17 C 00 01 02.22 +15 25 07.4 U Z80
2017-11-04 21:59:22 C 00 01 02.22 +15 25 05.2 U Z80
2017-11-04 22:01:28 C 00 01 02.15 +15 25 03.2 U Z80
2017-11-05 18:55:16 C 00 01 00.56 +15 06 32.0 t L04
2017-11-05 19:01:14 C 00 01 00.55 +15 06 26.9 t L04
2017-11-05 19:07:28 C 00 01 00.49 +15 06 21.3 t L04
2017-11-06 09:04:40 C 00 01 00.13 +14 54 01.7 U T05
2017-11-06 09:17:42 C 00 01 00.07 +14 53 49.8 U T05
2017-11-06 09:32:43 C 00 01 00.01 +14 53 36.2 U T05
2017-11-06 09:43:53 C 00 00 59.97 +14 53 26.1 U T05
2017-11-07 21:10:25 C 00 01 07.71 +14 21 23.7 16.8 u J43