PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-20:42:30
G02     58.9           34.1                8.8 +/-    1.15      14.1 +/-    1.15  0.030 / 0.030
G05     57.5           60.9                9.2 +/-    0.52      10.4 +/-    0.52  0.030 / 0.040
G12     181.7          28.9               11.8 +/-    1.65      21.2 +/-    1.65  0.200 / 0.360
G13     127.4          15.6               13.6 +/-    2.79      33.2 +/-    2.79  0.160 / 0.240
G15     165.8          11.3                3.2 +/-   27.67       8.6 +/-   27.67  0.080 / 0.080
G21     271.4          16.7               12.7 +/-    1.85      30.2 +/-    1.85  0.080 / 0.070
G25     234.6          51.4               10.6 +/-    2.23      13.2 +/-    2.23  0.050 / 0.110
G29     327.7          53.8                8.5 +/-    0.62      10.3 +/-    0.62  0.060 / 0.120