PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/03-21:43:10
G01     126.7          11.4               -9.4 +/-   42.48     -25.5 +/-   42.48  0.130 / 0.310
G07     64.1           67.1                9.6 +/-    0.90      10.4 +/-    0.90  0.130 / 0.460
G08     49.5           37.8                7.7 +/-    0.57      11.6 +/-    0.57  0.060 / 0.070
G09     178.3          36.7               12.4 +/-    1.27      19.1 +/-    1.27  0.060 / 0.090
G11     116.4          35.9               11.2 +/-    1.07      17.5 +/-    1.07  0.030 / 0.040
G13     320.9          12.2               -3.3 +/-   22.18      -8.7 +/-   22.18  0.030 / 0.040
G17     198.9          16.4               10.9 +/-    1.32      26.1 +/-    1.32  0.130 / 0.380
G18     100.3          16.6               10.1 +/-    1.84      24.2 +/-    1.84  0.180 / 0.370
G28     272.2          50.1               10.1 +/-    1.25      12.7 +/-    1.25  0.030 / 0.040
G30     332.8          60.7                8.9 +/-    0.94      10.1 +/-    0.94  0.030 / 0.040