PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-17:42:40
G02     32.7           55.6                8.0 +/-    0.40       9.5 +/-    0.40  0.030 / 0.040
G05     135.2          64.5               11.5 +/-    0.92      12.6 +/-    0.92  0.030 / 0.040
G06     56.2           11.3                8.0 +/-    1.17      21.6 +/-    1.17  0.030 / 0.050
G12     186.5          60.2               10.1 +/-    1.46      11.4 +/-    1.46  0.030 / 0.050
G19     101.2          11.0                9.3 +/-    1.72      25.3 +/-    1.72  0.120 / 0.180
G25     290.4          56.3                6.8 +/-    0.88       8.0 +/-    0.88  0.220 / 0.200
G29     308.8          29.0                8.4 +/-    1.01      15.0 +/-    1.01  0.040 / 0.060