PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-20:12:40
G02     202.2          30.1               13.2 +/-    1.03      23.1 +/-    1.03  0.280 / 0.330
G06     162.2          65.5               11.9 +/-    0.33      12.9 +/-    0.33  0.150 / 0.270
G12     305.7          13.4               10.1 +/-    1.93      26.0 +/-    1.93  0.060 / 0.070
G17     29.7           54.1               11.6 +/-    1.09      14.0 +/-    1.09  0.080 / 0.090
G19     345.5          68.1               10.5 +/-    0.43      11.2 +/-    0.43  0.040 / 0.030
G24     301.8          36.3               11.0 +/-    2.18      17.1 +/-    2.18  0.050 / 0.030
G28     98.4           33.9               11.7 +/-    1.15      19.0 +/-    1.15  0.060 / 0.030