PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-22:12:30
G02     204.4          39.7               18.7 +/-    0.72      27.3 +/-    0.72  0.200 / 0.230
G06     158.9          71.9               15.7 +/-    0.42      16.4 +/-    0.42  0.190 / 0.310
G12     308.6          16.2                8.6 +/-    1.30      20.7 +/-    1.30  0.080 / 0.090
G17     40.1           45.6               10.9 +/-    0.66      14.5 +/-    0.66  0.050 / 0.070
G19     10.4           62.5               12.5 +/-    0.48      13.9 +/-    0.48  0.060 / 0.120
G24     291.7          40.5               15.2 +/-    7.33      22.0 +/-    7.33  0.050 / 0.130
G28     104.3          32.2               12.6 +/-    1.04      21.0 +/-    1.04  0.030 / 0.030