PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/02-14:27:50
G02     204.6          32.0                9.2 +/-    1.41      15.5 +/-    1.41  0.080 / 0.110
G06     151.2          71.2                8.3 +/-    0.92       8.8 +/-    0.92  0.060 / 0.090
G12     309.5          20.6                6.9 +/-    1.44      14.9 +/-    1.44  0.090 / 0.210
G17     38.6           46.9                6.7 +/-    0.67       8.8 +/-    0.67  0.100 / 0.210
G19     352.5          66.4                5.5 +/-    0.68       5.9 +/-    0.68  0.030 / 0.040
G24     295.4          39.8                7.2 +/-    0.80      10.5 +/-    0.80  0.030 / 0.040
G28     102.8          31.0                8.6 +/-    0.59      14.7 +/-    0.59  0.050 / 0.040