PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-21:27:50
G02     83.7           14.9                7.6 +/-    1.18      18.9 +/-    1.18  0.050 / 0.080
G05     44.8           31.9                6.8 +/-    0.79      11.5 +/-    0.79  0.050 / 0.080
G13     97.2           33.5               11.8 +/-    0.81      19.3 +/-    0.81  0.080 / 0.110
G15     147.7          37.7               13.0 +/-    1.05      19.6 +/-    1.05  0.080 / 0.120
G20     232.3          -3.6               10.8 +/-    2.69      33.4 +/-    2.69  0.120 / 0.260
G21     297.2          35.5               10.7 +/-    1.30      16.9 +/-    1.30  0.110 / 0.300
G25     207.6          24.6               11.3 +/-    1.67      22.3 +/-    1.67  0.080 / 0.110
G26     302.9          19.6               10.4 +/-    1.93      23.2 +/-    1.93  0.080 / 0.150
G29     10.1           85.9                8.7 +/-    0.73       8.7 +/-    0.73  0.030 / 0.030