PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/19-08:42:30
G02     17.8           67.2                5.5 +/-    0.44       5.9 +/-    0.44  0.040 / 0.050
G05     159.9          44.0                9.8 +/-    1.11      13.4 +/-    1.11  0.040 / 0.050
G06     44.7           29.9                5.5 +/-    0.84       9.7 +/-    0.84  0.030 / 0.020
G12     262.5          80.9                6.7 +/-    0.61       6.7 +/-    0.61  0.030 / 0.020
G19     85.6           18.1                7.7 +/-    1.60      17.7 +/-    1.60  0.130 / 0.190
G24     221.3          15.0                5.7 +/-    4.66      14.2 +/-    4.66  0.110 / 0.170
G25     313.2          39.5                4.3 +/-    0.72       6.3 +/-    0.72  0.110 / 0.240
G29     293.6          15.0                5.0 +/-    1.58      12.4 +/-    1.58  0.090 / 0.310