PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-02:12:30
G02     35.1           53.8               10.0 +/-    0.57      12.0 +/-    0.57  0.040 / 0.040
G05     134.0          63.3               13.1 +/-    0.60      14.5 +/-    0.60  0.030 / 0.030
G06     54.4           14.9                6.9 +/-    1.40      17.1 +/-    1.40  0.040 / 0.040
G12     198.1          66.9               10.3 +/-    0.89      11.1 +/-    0.89  0.030 / 0.050
G19     100.4          10.2                9.8 +/-    1.92      27.3 +/-    1.92  0.070 / 0.060
G25     296.6          53.3               10.5 +/-    0.64      12.8 +/-    0.64  0.040 / 0.060
G29     307.7          28.0                6.5 +/-    1.06      11.9 +/-    1.06  0.080 / 0.050