PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-21:28:10
G02     33.7           55.0                9.1 +/-    0.63      10.8 +/-    0.63  0.030 / 0.030
G05     134.9          63.8               12.0 +/-    0.48      13.2 +/-    0.48  0.030 / 0.030
G06     55.3           13.0                8.4 +/-    2.04      22.0 +/-    2.04  0.110 / 0.220
G12     191.4          63.7               11.2 +/-    0.34      12.4 +/-    0.34  0.080 / 0.140
G19     100.6          10.8               10.0 +/-    2.05      27.4 +/-    2.05  0.070 / 0.050
G25     293.9          54.7                7.7 +/-    1.78       9.2 +/-    1.78  0.050 / 0.040
G29     308.0          28.2                8.0 +/-    1.05      14.5 +/-    1.05  0.020 / 0.030