PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-05:57:30
G02     56.1           34.9                3.4 +/-    1.36       5.4 +/-    1.36  0.140 / 0.420
G05     65.5           64.2                5.3 +/-    0.61       5.8 +/-    0.61  0.240 / 0.300
G12     187.4          40.2                7.4 +/-    1.48      10.8 +/-    1.48  0.070 / 0.070
G13     131.2          11.7                6.8 +/-    1.91      18.3 +/-    1.91  0.060 / 0.070
G21     268.9          17.4                5.7 +/-    1.60      13.4 +/-    1.60  0.060 / 0.050
G25     240.5          55.0                6.8 +/-    2.22       8.1 +/-    2.22  0.100 / 0.070
G29     329.7          54.7                4.4 +/-    0.41       5.2 +/-    0.41  0.200 / 0.410