PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-14:57:40
G02     201.6          20.2               10.9 +/-    1.22      23.9 +/-    1.22  0.150 / 0.310
G06     166.3          58.1               11.2 +/-    0.74      12.9 +/-    0.74  0.130 / 0.310
G12     302.2          10.9               -1.3 +/-   19.97      -3.6 +/-   19.97  0.120 / 0.110
G13     225.3          11.6                6.9 +/-    4.51      18.7 +/-    4.51  0.100 / 0.120
G17     26.3           56.9               10.0 +/-    0.93      11.7 +/-    0.93  0.240 / 0.290
G19     317.8          70.1                8.5 +/-    0.67       8.9 +/-    0.67  0.140 / 0.410
G24     307.4          32.6                8.7 +/-    0.92      14.4 +/-    0.92  0.100 / 0.400
G28     90.1           38.6                8.9 +/-    0.65      13.3 +/-    0.65  0.100 / 0.400
G30     158.0          14.1                9.9 +/-    1.63      25.1 +/-    1.63  0.040 / 0.040