PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-19:43:00
G01     80.5           32.8               27.6 +/-    0.70      45.6 +/-    0.70  0.040 / 0.100
G07     132.0          32.4               15.3 +/-    0.36      25.6 +/-    0.36  0.050 / 0.090
G11     59.3           35.6               11.9 +/-    0.49      18.7 +/-    0.49  0.040 / 0.060
G13     284.6          38.4               13.8 +/-    1.15      20.6 +/-    1.15  0.050 / 0.060
G15     309.0          13.4               10.6 +/-    2.15      27.4 +/-    2.15  0.030 / 0.030
G17     220.3          61.7               15.8 +/-    0.71      17.7 +/-    0.71  0.040 / 0.030
G18     54.4           20.6                9.6 +/-    1.81      20.9 +/-    1.81  0.070 / 0.120
G19     217.8          34.5               17.0 +/-    4.04      27.3 +/-    4.04  0.060 / 0.130
G28     354.2          61.5               13.2 +/-    1.11      14.8 +/-    1.11  0.080 / 0.270
G30     124.6          68.0               15.6 +/-    0.61      16.7 +/-    0.61  0.080 / 0.270