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
2017-11-07 21:24:35 C 00 01 07.70 +14 21 10.8 16.3 u J43
2017-11-07 21:38:51 C 00 01 07.69 +14 20 57.8 16.0 u J43
2017-11-07 21:52:56 C 00 01 07.69 +14 20 44.9 15.9 u J43
2017-11-08 08:54:30 C 00 01 11.22 +14 10 46.8 U T08
2017-11-08 08:55:10 C 00 01 11.23 +14 10 46.1 U T08
2017-11-08 08:55:50 C 00 01 11.25 +14 10 45.7 U T08
2017-11-09 19:43:07 C 00 01 29.72 +13 38 44.4 o L52
2017-11-09 19:46:38 C 00 01 29.70 +13 38 41.2 o L52
2017-11-09 19:53:40 C 00 01 29.81 +13 38 32.7 o L52
2017-11-09 19:55:23 C 00 01 29.75 +13 38 33.3 o L52
2017-11-10 08:24:34 C 00 01 38.46 +13 27 11.4 U T05
2017-11-10 08:37:56 C 00 01 38.54 +13 26 59.1 U T05
2017-11-10 08:51:19 C 00 01 38.64 +13 26 46.8 U T05
2017-11-10 09:01:38 C 00 01 38.69 +13 26 37.1 U T05
2017-11-11 07:46:16 C 00 01 58.05 +13 05 35.4 U T08
2017-11-11 07:56:28 C 00 01 58.14 +13 05 26.1 U T08
2017-11-11 08:06:55 C 00 01 58.23 +13 05 16.5 U T08
2017-11-11 08:17:20 C 00 01 58.32 +13 05 06.8 U T08
2017-11-12 16:20:58 C 00 02 32.43 +12 35 18.2 q C97
2017-11-12 16:23:07 C 00 02 32.48 +12 35 16.1 q C97
2017-11-12 16:27:28 C 00 02 32.52 +12 35 12.4 q C97
2017-11-12 18:06:10 C 00 02 33.85 +12 33 39.7 q C97
2017-11-12 18:08:21 C 00 02 33.85 +12 33 37.7 q C97
2017-11-12 18:10:31 C 00 02 33.86 +12 33 35.6 q C97
2017-11-12 18:12:42 C 00 02 33.93 +12 33 33.1 q C97
2017-11-13 08:07:28 C 00 02 51.22 +12 20 36.5 U T05
2017-11-13 08:17:37 C 00 02 51.38 +12 20 27.0 U T05
2017-11-13 08:27:46 C 00 02 51.54 +12 20 17.4 U T05
2017-11-13 08:38:04 C 00 02 51.71 +12 20 07.7 U T05
2017-11-14 08:33:14 C 00 03 24.95 +11 57 48.2 U T05
2017-11-14 08:52:19 C 00 03 25.31 +11 57 30.2 U T05
2017-11-14 09:00:53 C 00 03 25.48 +11 57 22.2 U T05
2017-11-14 09:19:22 C 00 03 25.83 +11 57 04.8 U T05
2017-11-15 04:54:27 C 00 03 57.08 +11 38 43.0 U 703
2017-11-15 05:02:06 C 00 03 57.24 +11 38 35.8 U 703
2017-11-15 05:09:44 C 00 03 57.41 +11 38 28.5 U 703
2017-11-15 05:17:23 C 00 03 57.54 +11 38 21.1 U 703
2017-11-15 07:43:14 C 00 04 01.76 +11 36 10.4 U T08
2017-11-15 07:54:59 C 00 04 02.01 +11 35 58.7 U T08
2017-11-15 08:06:37 C 00 04 02.28 +11 35 48.7 U T08
2017-11-16 03:37:54 C 00 04 37.05 +11 17 29.2 U G96
2017-11-16 03:46:07 C 00 04 37.25 +11 17 21.5 U G96
2017-11-16 03:54:19 C 00 04 37.45 +11 17 13.9 U G96
2017-11-16 04:02:34 C 00 04 37.65 +11 17 06.2 U G96
2017-11-16 19:33:26 C 00 05 07.26 +11 02 32.8 q 160
2017-11-16 19:35:19 C 00 05 07.31 +11 02 31.1 q 160
2017-11-16 19:37:18 C 00 05 07.37 +11 02 29.2 q 160
2017-11-17 07:58:03 C 00 05 31.80 +10 51 06.7 U T05
2017-11-17 08:09:41 C 00 05 32.12 +10 50 55.8 U T05
2017-11-17 08:21:19 C 00 05 32.45 +10 50 44.9 U T05