PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-23:28:00
G02     338.1          79.6                9.2 +/-    0.46       9.4 +/-    0.46  0.030 / 0.030
G05     164.0          32.6               14.8 +/-    1.60      24.6 +/-    1.60  0.030 / 0.030
G06     41.4           40.9                8.7 +/-    1.16      12.4 +/-    1.16  0.260 / 0.240
G12     313.5          70.4               10.9 +/-    0.53      11.5 +/-    0.53  0.150 / 0.210
G17     83.8           14.7               10.6 +/-    3.19      26.6 +/-    3.19  0.050 / 0.070
G19     72.6           29.7               10.9 +/-    1.75      19.2 +/-    1.75  0.050 / 0.070
G24     229.3          23.8               16.5 +/-    3.23      33.2 +/-    3.23  0.040 / 0.060
G25     317.5          26.7               10.3 +/-    1.39      19.4 +/-    1.39  0.050 / 0.050