PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/12-15:43:10
G01     44.5           20.6                7.5 +/-    3.59      16.2 +/-    3.59  0.040 / 0.060
G06     175.8          31.4               10.6 +/-    1.39      18.1 +/-    1.39  0.040 / 0.050
G11     43.5           9.9                 7.8 +/-    4.81      21.8 +/-    4.81  0.250 / 0.430
G13     242.8          27.2               10.1 +/-    1.75      18.7 +/-    1.75  0.170 / 0.600
G15     277.2          14.3                9.6 +/-    1.31      24.2 +/-    1.31  0.340 / 0.390
G17     330.7          76.5               10.4 +/-    0.32      10.7 +/-    0.32  0.130 / 0.230
G19     259.5          66.2               11.1 +/-    0.73      12.0 +/-    0.73  0.030 / 0.030
G24     318.2          12.9                5.8 +/-   13.54      15.1 +/-   13.54  0.030 / 0.030
G28     54.4           54.2               10.5 +/-    0.70      12.6 +/-    0.70  0.040 / 0.040
G30     152.0          33.4                9.6 +/-    1.00      15.8 +/-    1.00  0.040 / 0.040