PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/17-04:58:00
G01     231.6          23.7                6.2 +/-    1.46      12.5 +/-    1.46  0.070 / 0.130
G03     305.3          60.9                4.8 +/-    0.96       5.4 +/-    0.96  0.080 / 0.190
G14     76.9           31.1                3.4 +/-    0.37       5.8 +/-    0.37  0.030 / 0.040
G16     152.1          35.7                7.0 +/-    0.72      11.0 +/-    0.72  0.040 / 0.030
G18     208.0          12.9                2.2 +/-    2.42       5.7 +/-    2.42  0.050 / 0.050
G22     252.8          74.8                4.2 +/-    0.84       4.4 +/-    0.84  0.040 / 0.060
G23     302.0          33.8                4.9 +/-    0.80       8.0 +/-    0.80  0.100 / 0.230
G26     113.4          50.9                6.3 +/-    0.84       7.9 +/-    0.84  0.090 / 0.240
G31     43.0           38.8               -6.0 +/-    0.39      -8.9 +/-    0.39  0.080 / 0.130
G32     91.7           12.0                4.7 +/-    1.59      12.6 +/-    1.59  0.070 / 0.120