PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-00:27:20
G02     29.9           58.2               10.3 +/-    0.53      11.9 +/-    0.53  0.020 / 0.040
G05     142.9          59.2               13.6 +/-    0.83      15.5 +/-    0.83  0.020 / 0.040
G06     51.9           18.1                7.8 +/-    0.93      17.9 +/-    0.93  0.030 / 0.050
G12     203.1          71.6               12.0 +/-    0.75      12.5 +/-    0.75  0.040 / 0.040
G19     96.3           13.6               11.3 +/-    1.49      29.2 +/-    1.49  0.040 / 0.040
G25     302.8          50.2               10.1 +/-    1.01      12.7 +/-    1.01  0.060 / 0.050
G29     304.1          24.2               10.9 +/-    1.11      21.6 +/-    1.11  0.070 / 0.130