PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/12-12:57:50
G02     57.3           33.5                6.8 +/-    1.39      11.0 +/-    1.39  0.040 / 0.070
G05     68.2           67.3                9.7 +/-    0.54      10.4 +/-    0.54  0.040 / 0.080
G12     182.1          34.1               10.2 +/-    1.81      16.4 +/-    1.81  0.040 / 0.030
G13     129.3          12.5                7.3 +/-    2.43      19.2 +/-    2.43  0.040 / 0.030
G15     163.8          11.0               -0.0 +/-   19.98      -0.1 +/-   19.98  0.110 / 0.250
G21     268.9          15.0                6.4 +/-    1.58      15.8 +/-    1.58  0.090 / 0.280
G25     242.7          54.4               12.9 +/-    1.24      15.5 +/-    1.24  0.060 / 0.090
G29     325.6          50.1                7.9 +/-    1.04       9.9 +/-    1.04  0.050 / 0.090