PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-20:57:40
G02     200.2          21.9               13.2 +/-    3.01      27.8 +/-    3.01  0.050 / 0.080
G06     172.4          53.1               12.7 +/-    0.55      15.4 +/-    0.55  0.050 / 0.070
G13     225.5          12.7               11.7 +/-    6.37      30.7 +/-    6.37  0.100 / 0.130
G17     23.1           59.0               11.5 +/-    0.91      13.2 +/-    0.91  0.100 / 0.110
G19     327.2          71.1                9.9 +/-    0.48      10.4 +/-    0.48  0.180 / 0.240
G24     308.7          30.9               10.1 +/-    1.73      17.4 +/-    1.73  0.220 / 0.270
G28     85.5           43.0               10.7 +/-    1.75      14.9 +/-    1.75  0.050 / 0.040
G30     156.5          11.7               13.3 +/-    1.57      35.6 +/-    1.57  0.040 / 0.040