PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/13-05:12:50
G01     319.3          17.3                5.6 +/-    0.69      13.2 +/-    0.69  0.150 / 0.380
G08     258.2          13.5                9.3 +/-    1.93      23.8 +/-    1.93  0.170 / 0.420
G10     78.7           53.5                6.5 +/-    0.55       7.8 +/-    0.55  0.040 / 0.050
G11     303.7          22.8                4.9 +/-    2.02      10.0 +/-    2.02  0.040 / 0.050
G14     288.2          68.9                7.3 +/-    0.87       7.8 +/-    0.87  0.070 / 0.230
G18     305.5          39.6                7.0 +/-    0.96      10.2 +/-    0.96  0.090 / 0.230
G20     99.5           41.4               13.5 +/-    1.28      19.2 +/-    1.28  0.090 / 0.190
G22     300.6          10.9                1.5 +/-    9.78       4.1 +/-    9.78  0.090 / 0.160
G31     174.1          43.1                9.2 +/-    1.07      12.7 +/-    1.07  0.050 / 0.040
G32     10.4           66.8                4.7 +/-    1.02       5.1 +/-    1.02  0.050 / 0.050