PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-15:58:10
G07     337.1          59.5               12.9 +/-    0.77      14.7 +/-    0.77  0.030 / 0.040
G08     96.6           53.1               12.2 +/-    0.64      14.9 +/-    0.64  0.030 / 0.060
G09     187.3          70.1               14.9 +/-    0.95      15.7 +/-    0.95  0.040 / 0.050
G11     144.3          15.0               14.6 +/-    2.54      36.2 +/-    2.54  0.030 / 0.050
G23     155.2          34.3               13.7 +/-    0.61      22.0 +/-    0.61  0.060 / 0.100
G27     51.9           29.7               11.4 +/-    0.68      20.1 +/-    0.68  0.070 / 0.090
G28     240.1          32.3               15.1 +/-    1.42      25.2 +/-    1.42  0.140 / 0.420
G30     305.0          37.7               10.9 +/-    1.04      16.5 +/-    1.04  0.140 / 0.370