PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-11:42:50
G02     213.4          58.3                9.8 +/-    0.98      11.3 +/-    0.98  0.110 / 0.290
G06     75.6           79.7                6.2 +/-    0.68       6.2 +/-    0.68  0.090 / 0.350
G12     317.5          32.5                4.8 +/-    1.47       8.0 +/-    1.47  0.060 / 0.080
G17     56.7           32.4                3.7 +/-    0.63       6.1 +/-    0.63  0.060 / 0.080
G19     38.5           49.6                4.2 +/-    0.45       5.3 +/-    0.45  0.050 / 0.080
G24     271.1          41.8                7.1 +/-    0.48      10.1 +/-    0.48  0.040 / 0.080
G28     121.3          14.8                7.1 +/-    1.41      17.7 +/-    1.41  0.040 / 0.080