PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-06:43:10
G01     286.1          41.0                3.5 +/-    1.59       5.0 +/-    1.59  0.060 / 0.050
G03     312.6          17.6                4.9 +/-    2.18      11.3 +/-    2.18  0.040 / 0.050
G10     122.1          27.2                4.6 +/-    1.86       8.6 +/-    1.86  0.060 / 0.070
G11     258.6          26.1                6.4 +/-    3.25      12.2 +/-    3.25  0.050 / 0.060
G14     31.4           55.6                3.1 +/-    0.78       3.7 +/-    0.78  0.060 / 0.070
G22     314.4          42.4                5.0 +/-    0.71       7.1 +/-    0.71  0.050 / 0.090
G25     59.1           17.0                2.6 +/-    2.44       6.3 +/-    2.44  0.050 / 0.050
G26     155.6          15.1                4.0 +/-    1.47      10.0 +/-    1.47  0.040 / 0.060
G31     108.5          80.1                4.1 +/-    0.73       4.1 +/-    0.73  0.040 / 0.040
G32     53.4           40.5                3.0 +/-    0.89       4.3 +/-    0.89  0.060 / 0.050