PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-23:28:00
G01     88.8           32.1                9.6 +/-    1.27      16.1 +/-    1.27  0.050 / 0.040
G07     126.5          44.9               11.5 +/-    0.90      15.5 +/-    0.90  0.060 / 0.040
G08     42.8           9.7                 7.9 +/-    2.41      22.3 +/-    2.41  0.090 / 0.090
G11     70.2           41.0                9.3 +/-    1.09      13.3 +/-    1.09  0.100 / 0.090
G13     293.9          35.9               10.3 +/-    1.95      16.1 +/-    1.95  0.120 / 0.390
G15     314.1          10.9                2.8 +/-   23.59       7.8 +/-   23.59  0.100 / 0.350
G17     216.0          51.9               11.3 +/-    1.06      14.0 +/-    1.06  0.040 / 0.040
G19     215.2          28.1               11.7 +/-    1.69      21.4 +/-    1.69  0.040 / 0.040
G28     352.7          61.6                9.3 +/-    0.60      10.4 +/-    0.60  0.080 / 0.130
G30     112.0          71.9               10.3 +/-    0.85      10.8 +/-    0.85  0.090 / 0.120