PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-07:57:40
G01     91.6           31.4                8.4 +/-    0.83      14.4 +/-    0.83  0.040 / 0.050
G07     124.4          45.4                9.9 +/-    1.33      13.2 +/-    1.33  0.040 / 0.060
G11     70.0           39.4                7.1 +/-    0.67      10.4 +/-    0.67  0.040 / 0.050
G13     297.6          34.5                8.6 +/-    1.24      13.7 +/-    1.24  0.050 / 0.050
G17     213.4          54.2               11.2 +/-    1.12      13.5 +/-    1.12  0.040 / 0.070
G19     213.9          27.4                8.1 +/-    2.15      15.0 +/-    2.15  0.040 / 0.070
G28     348.0          61.7                6.4 +/-    0.60       7.2 +/-    0.60  0.090 / 0.100
G30     98.5           76.6                9.0 +/-    0.66       9.2 +/-    0.66  0.080 / 0.110