PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-18:43:10
G02     58.8           34.0                7.5 +/-    2.57      12.2 +/-    2.57  0.350 / 0.550
G05     57.2           61.2                8.3 +/-    0.66       9.4 +/-    0.66  0.320 / 0.440
G12     184.0          32.1               10.6 +/-    1.28      17.8 +/-    1.28  0.160 / 0.460
G13     125.9          15.6               11.4 +/-    2.20      27.8 +/-    2.20  0.160 / 0.500
G15     163.6          13.1               12.9 +/-    2.16      33.5 +/-    2.16  0.240 / 0.310
G21     272.2          17.0               11.2 +/-    2.91      26.6 +/-    2.91  0.190 / 0.200
G25     236.6          51.5               11.7 +/-    2.63      14.5 +/-    2.63  0.070 / 0.110
G29     329.4          55.4                8.8 +/-    0.60      10.5 +/-    0.60  0.060 / 0.120