PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/07-10:43:10
G01     71.9           32.9                4.6 +/-    0.92       7.5 +/-    0.92  0.050 / 0.110
G07     136.7          30.1                6.3 +/-    1.39      10.9 +/-    1.39  0.050 / 0.090
G11     54.0           29.9                3.0 +/-    1.12       5.3 +/-    1.12  0.040 / 0.060
G13     278.1          36.9                6.2 +/-    0.66       9.5 +/-    0.66  0.050 / 0.050
G15     304.2          14.9                2.3 +/-    1.76       5.7 +/-    1.76  0.140 / 0.360
G17     233.0          70.6                6.3 +/-    0.93       6.6 +/-    0.93  0.110 / 0.310
G19     223.6          42.9                7.7 +/-    0.85      10.7 +/-    0.85  0.040 / 0.050
G28     18.7           59.3                4.1 +/-    0.48       4.6 +/-    0.48  0.030 / 0.040
G30     133.5          63.7                5.1 +/-    0.63       5.6 +/-    0.63  0.060 / 0.130