PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-13:42:50
G02     55.5           35.3                5.5 +/-    1.28       8.6 +/-    1.28  0.190 / 0.340
G05     74.2           69.1              -24.2 +/-    4.67     -25.7 +/-    4.67  0.100 / 0.300
G12     182.8          36.6                7.9 +/-    0.66      12.2 +/-    0.66  0.080 / 0.080
G13     130.7          11.3                8.5 +/-    4.14      22.9 +/-    4.14  0.050 / 0.080
G21     267.3          13.6                4.7 +/-    5.60      12.2 +/-    5.60  0.320 / 0.320
G25     246.3          55.4                7.1 +/-    1.45       8.4 +/-    1.45  0.180 / 0.490
G29     324.4          48.5                4.7 +/-    0.49       6.1 +/-    0.49  0.040 / 0.040