PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/13-18:42:40
G02     269.4          79.6               10.0 +/-    0.65      10.2 +/-    0.65  0.320 / 0.260
G05     168.8          22.5               13.2 +/-    2.58      27.3 +/-    2.58  0.100 / 0.170
G06     39.6           51.1               10.5 +/-    0.88      13.1 +/-    0.88  0.040 / 0.030
G12     320.3          57.6                9.8 +/-    0.40      11.4 +/-    0.40  0.030 / 0.030
G17     75.1           20.2               10.4 +/-    2.04      22.8 +/-    2.04  0.100 / 0.150
G19     64.6           32.9                9.0 +/-    1.43      14.9 +/-    1.43  0.100 / 0.140
G24     238.5          30.3               13.1 +/-    2.23      22.7 +/-    2.23  0.070 / 0.160
G25     317.2          17.6               10.4 +/-    1.91      24.3 +/-    1.91  0.090 / 0.150