PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/26-02:27:50
G02     31.4           57.1               10.3 +/-    1.10      12.0 +/-    1.10  0.200 / 0.220
G05     141.4          59.8               14.0 +/-    0.57      16.0 +/-    0.57  0.240 / 0.300
G06     52.1           18.3                7.5 +/-    3.04      17.2 +/-    3.04  0.020 / 0.030
G12     205.0          71.6               13.5 +/-    0.36      14.1 +/-    0.36  0.030 / 0.060
G19     97.1           12.7               10.4 +/-    2.06      27.4 +/-    2.06  0.040 / 0.040
G25     302.3          50.4               11.1 +/-    3.54      13.9 +/-    3.54  0.030 / 0.030
G29     304.7          25.0               10.8 +/-    0.79      21.1 +/-    0.79  0.060 / 0.080