PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/25-02:58:00
G01     271.6          41.0                6.9 +/-    0.76       9.9 +/-    0.76  0.060 / 0.060
G03     315.4          26.8                2.6 +/-    1.31       4.9 +/-    1.31  0.060 / 0.070
G10     129.3          18.4                7.1 +/-    1.40      16.2 +/-    1.40  0.050 / 0.080
G11     249.4          21.3                8.4 +/-    2.39      17.8 +/-    2.39  0.050 / 0.080
G14     44.2           49.3                3.5 +/-    0.72       4.4 +/-    0.72  0.050 / 0.080
G22     314.2          50.3                4.2 +/-    1.02       5.3 +/-    1.02  0.050 / 0.080
G25     50.7           15.6                4.6 +/-    1.19      11.3 +/-    1.19  0.050 / 0.080
G26     151.7          22.7                7.1 +/-    1.81      14.7 +/-    1.81  0.040 / 0.080
G31     60.7           77.6                4.1 +/-    0.56       4.2 +/-    0.56  0.020 / 0.030
G32     61.6           35.6                3.4 +/-    0.90       5.3 +/-    0.90  0.030 / 0.030