PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/03-14:58:10
G07     324.6          54.6               12.3 +/-    1.19      14.7 +/-    1.19  0.040 / 0.050
G08     110.7          50.1               13.6 +/-    0.36      17.1 +/-    0.36  0.040 / 0.060
G09     202.5          78.9               12.1 +/-    0.74      12.3 +/-    0.74  0.040 / 0.050
G23     152.3          44.0               12.7 +/-    1.63      17.4 +/-    1.63  0.030 / 0.060
G27     60.6           34.1               11.1 +/-    0.71      17.9 +/-    0.71  0.050 / 0.080
G28     233.2          25.2               14.8 +/-    1.76      28.7 +/-    1.76  0.050 / 0.070
G30     297.8          31.7                9.9 +/-    1.99      16.8 +/-    1.99  0.060 / 0.150