PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/10-15:27:50
G01     320.5          13.1                3.1 +/-    5.83       8.0 +/-    5.83  0.250 / 0.310
G08     264.8          15.8                6.8 +/-    4.21      16.7 +/-    4.21  0.200 / 0.460
G10     69.9           56.6                6.5 +/-    0.42       7.6 +/-    0.42  0.060 / 0.070
G11     309.6          18.3                6.7 +/-    2.49      15.4 +/-    2.49  0.060 / 0.060
G14     277.5          67.7                7.4 +/-    0.51       7.9 +/-    0.51  0.030 / 0.040
G27     227.2          12.1                7.3 +/-    2.23      19.5 +/-    2.23  0.030 / 0.040
G31     177.0          36.2                8.5 +/-    2.13      13.2 +/-    2.13  0.030 / 0.020
G32     356.2          71.0                6.2 +/-    0.30       6.5 +/-    0.30  0.030 / 0.030