PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/10-16:42:50
G02     201.0          21.8                7.1 +/-    2.10      15.0 +/-    2.10  0.050 / 0.080
G06     169.0          56.3                8.4 +/-    0.89       9.9 +/-    0.89  0.040 / 0.080
G13     224.4          11.8                7.9 +/-    2.11      21.2 +/-    2.11  0.210 / 0.170
G17     20.8           60.0                7.8 +/-    1.16       8.9 +/-    1.16  0.350 / 0.200
G19     334.1          70.7                7.6 +/-    0.61       8.0 +/-    0.61  0.090 / 0.140
G24     308.4          30.8                7.2 +/-    1.43      12.3 +/-    1.43  0.090 / 0.130
G28     86.2           43.2                8.0 +/-    1.14      11.0 +/-    1.14  0.040 / 0.040
G30     156.8          11.1                8.7 +/-    4.66      23.7 +/-    4.66  0.050 / 0.040