1998 SU4

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5804568307 ± 2.22e-06
Semi-major axis (a)1.1479069440 AU ± 2.61e-08
Inclination (i)23.14380230° ± 1.64e-04
Long. of Asc. Node (Ω)350.55508547° ± 2.27e-05
Arg. of Perihelion (ω)241.88207152° ± 2.36e-04
Mean Anomaly (M)85.75302351° ± 9.49e-05
Mean Motion (n)0.8014053763°/day ± 2.73e-08
Perihelion dist (q)0.48159652 AU ± 2.55e-06
Aphelion dist (Q)1.81421737 AU ± 2.55e-06
Orbital Period1.22987231 yr ± 4.19e-08
NGA Modelr2
A2-6.02677485e-14 ± 2.20e-14 AU/d²
Physical Parameters
H (abs. magnitude)21.41
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.414″
Uncertainty0
Orbit TypeApollo
MOID0.018894 AU
Observations Used94
Oppositions5
Arc Total1998-2025
First Observation Used1998-09-19
Last Observation Used2025-11-11
Observations (101)
Date Type RA Dec Mag Band Observatory
2014-09-18 19:10:20 C 23 31 44.29 +19 22 50.0 q K61
2014-09-18 19:18:07 C 23 31 41.74 +19 22 54.3 t 493
2014-09-18 19:37:37 C 23 31 32.25 +19 22 40.3 q 958
2014-09-18 19:45:44 C 23 31 28.49 +19 22 36.6 q 958
2014-09-18 19:47:09 C 23 31 28.26 +19 22 41.6 t 493
2014-09-18 20:01:44 C 23 31 21.48 +19 22 35.0 t 493
2014-09-18 20:01:56 C 23 31 20.99 +19 22 28.5 q 958
2014-09-18 20:22:42 C 23 31 11.72 +19 22 25.4 t 493
2014-09-18 21:02:05 C 23 30 51.21 +19 22 04.3 c 094
2014-09-18 21:05:05 C 23 30 49.85 +19 22 02.8 c 094
2014-09-18 21:11:36 C 23 30 46.75 +19 21 59.4 c 094
2014-09-18 22:21:38 C 23 30 14.22 +19 21 22.8 c 094
2014-09-18 22:25:54 C 23 30 12.23 +19 21 21.0 c 094
2014-09-18 22:29:33 C 23 30 10.47 +19 21 18.3 c 094
2014-09-20 06:17:59 C 23 17 13.50 +19 04 01.0 q H45
2014-09-20 06:19:11 C 23 17 13.02 +19 04 00.3 q H45
2014-09-20 06:20:42 C 23 17 12.42 +19 03 59.3 q H45
2014-09-20 06:21:43 C 23 17 12.05 +19 03 58.5 q H45
2014-09-20 06:23:02 C 23 17 11.57 +19 03 58.0 q H45
2014-09-20 06:24:03 C 23 17 11.17 +19 03 57.4 q H45
2014-09-21 07:22:55 C 23 08 38.00 +18 49 36.8 q H45
2014-09-21 07:24:46 C 23 08 37.37 +18 49 35.6 q H45
2014-09-21 07:27:00 C 23 08 36.69 +18 49 34.1 q H45
2014-09-21 07:28:17 C 23 08 36.25 +18 49 33.4 q H45
2014-09-21 07:30:00 C 23 08 35.65 +18 49 32.4 q H45
2014-09-21 07:31:57 C 23 08 35.02 +18 49 31.0 q H45
2014-09-21 07:34:26 C 23 08 34.22 +18 49 29.6 q H45
2014-09-21 07:36:04 C 23 08 33.68 +18 49 28.6 q H45
2014-09-22 05:43:09 C 23 02 04.010 +18 36 54.62 L F51
2014-09-22 06:00:18 C 23 01 59.087 +18 36 45.93 L F51
2014-09-22 06:17:24 C 23 01 54.167 +18 36 37.03 L F51
2014-09-22 23:08:24 C 22 57 23.49 +18 26 45.9 t 204
2014-09-22 23:18:43 C 22 57 20.75 +18 26 39.3 t 204
2014-09-22 23:28:30 C 22 57 18.22 +18 26 34.2 t 204
2014-09-23 07:10:04 C 22 55 23.63 +18 22 21.9 q H45
2014-09-23 07:13:17 C 22 55 22.79 +18 22 20.7 q H45
2014-09-23 07:14:53 C 22 55 22.39 +18 22 19.5 q H45
2014-09-23 07:16:38 C 22 55 21.97 +18 22 18.3 q H45
2014-09-23 07:18:42 C 22 55 21.46 +18 22 17.2 q H45
2014-09-23 07:20:03 C 22 55 21.13 +18 22 16.6 q H45
2014-09-23 07:24:11 C 22 55 20.09 +18 22 14.2 q H45
2014-09-23 07:25:44 C 22 55 19.71 +18 22 13.2 q H45
2014-09-26 21:14:34 C 22 38 46.33 +17 36 57.2 q 151
2014-09-26 21:19:06 C 22 38 45.61 +17 36 54.9 q 151
2014-09-26 21:23:38 C 22 38 44.88 +17 36 52.6 q 151
2014-09-30 04:55:13 C 22 28 42.39 +17 00 41.5 q G96
2014-09-30 05:06:52 C 22 28 41.10 +17 00 36.6 q G96
2014-09-30 05:18:31 C 22 28 39.78 +17 00 31.8 q G96
2014-09-30 05:30:13 C 22 28 38.48 +17 00 26.8 q G96
2025-11-11 03:16:16 C 21 27 11.832 -00 55 18.88 W G37