PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-17:57:30
G03     193.4          32.4               12.1 +/-    0.93      20.2 +/-    0.93  0.130 / 0.250
G07     276.3          28.7               12.2 +/-    1.27      22.0 +/-    1.27  0.210 / 0.270
G08     154.5          14.6               14.3 +/-    1.87      35.9 +/-    1.87  0.040 / 0.040
G09     319.0          47.6               11.0 +/-    1.06      14.3 +/-    1.06  0.040 / 0.040
G16     50.4           51.7               11.9 +/-    0.40      14.7 +/-    0.40  0.140 / 0.300
G22     179.3          16.7               12.7 +/-    1.67      30.3 +/-    1.67  0.150 / 0.320
G23     32.8           81.1               11.1 +/-    1.59      11.3 +/-    1.59  0.020 / 0.030
G26     43.2           22.5                9.7 +/-    3.10      20.2 +/-    3.10  0.040 / 0.040
G27     114.3          26.3               12.7 +/-    1.24      24.1 +/-    1.24  0.150 / 0.290