PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-23:58:00
G01     69.7           32.8               12.2 +/-    1.06      20.2 +/-    1.06  0.060 / 0.060
G07     138.0          30.5               15.5 +/-    0.88      26.9 +/-    0.88  0.050 / 0.070
G11     54.8           32.3               11.3 +/-    1.71      19.0 +/-    1.71  0.030 / 0.040
G13     274.0          37.2               13.2 +/-    3.42      20.1 +/-    3.42  0.030 / 0.040
G15     301.2          15.8                9.5 +/-    1.67      23.2 +/-    1.67  0.030 / 0.050
G17     234.1          66.9               13.8 +/-    0.85      14.8 +/-    0.85  0.030 / 0.050
G19     225.0          42.8               15.4 +/-    1.79      21.4 +/-    1.79  0.060 / 0.090
G28     22.3           58.8               10.2 +/-    2.15      11.7 +/-    2.15  0.060 / 0.090
G30     136.2          57.5               15.8 +/-    0.52      18.4 +/-    0.52  0.050 / 0.080