PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-17:42:40
G01     47.2           23.1               10.2 +/-    2.31      20.8 +/-    2.31  0.030 / 0.060
G06     177.2          27.0               14.1 +/-    1.23      26.2 +/-    1.23  0.030 / 0.050
G11     43.8           12.5                9.3 +/-    2.86      24.6 +/-    2.86  0.140 / 0.250
G13     246.3          29.4               14.5 +/-    1.94      25.8 +/-    1.94  0.170 / 0.270
G15     280.2          15.2               11.8 +/-    2.82      29.1 +/-    2.82  0.170 / 0.210
G17     321.9          77.9               13.1 +/-    0.34      13.3 +/-    0.34  0.090 / 0.170
G19     251.6          63.2               13.3 +/-    0.58      14.8 +/-    0.58  0.030 / 0.030
G28     49.5           55.1               11.8 +/-    0.66      14.0 +/-    0.66  0.030 / 0.020
G30     150.2          35.3               13.1 +/-    1.44      20.6 +/-    1.44  0.050 / 0.050