PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/07-01:42:40
G02     31.1           57.3                7.9 +/-    0.53       9.2 +/-    0.53  0.030 / 0.040
G05     141.5          59.8               11.5 +/-    1.27      13.1 +/-    1.27  0.030 / 0.040
G06     52.2           18.0                5.7 +/-    1.13      13.1 +/-    1.13  0.040 / 0.040
G12     203.9          71.4               10.8 +/-    0.63      11.4 +/-    0.63  0.030 / 0.060
G19     97.0           12.9                8.7 +/-    1.62      22.8 +/-    1.62  0.060 / 0.060
G25     302.3          50.5                9.2 +/-    0.62      11.5 +/-    0.62  0.050 / 0.050
G29     304.7          24.9               10.0 +/-    1.41      19.7 +/-    1.41  0.050 / 0.080