PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-07:28:10
G01     87.3           32.3                5.4 +/-    1.33       9.1 +/-    1.33  0.040 / 0.040
G07     127.7          42.4                8.2 +/-    0.48      11.5 +/-    0.48  0.040 / 0.050
G11     66.1           38.1                5.8 +/-    0.99       8.7 +/-    0.99  0.040 / 0.060
G13     293.5          35.7                6.0 +/-    2.90       9.4 +/-    2.90  0.040 / 0.050
G15     313.7          11.2               -3.0 +/-   13.68      -8.1 +/-   13.68  0.050 / 0.060
G17     216.3          57.7                9.4 +/-    1.24      10.9 +/-    1.24  0.070 / 0.040
G19     215.7          30.7                5.4 +/-    2.90       9.4 +/-    2.90  0.120 / 0.160
G28     355.2          61.4                4.0 +/-    0.94       4.5 +/-    0.94  0.100 / 0.220
G30     111.0          73.7                6.1 +/-    0.40       6.4 +/-    0.40  0.090 / 0.090