PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/07-05:57:40
G02     54.6           36.2                4.3 +/-    1.58       6.6 +/-    1.58  0.340 / 0.450
G05     69.2           65.5                5.8 +/-    0.75       6.3 +/-    0.75  0.200 / 0.440
G12     187.9          42.2                6.7 +/-    0.69       9.5 +/-    0.69  0.190 / 0.440
G13     132.6          10.5                0.9 +/-   19.07       2.4 +/-   19.07  0.190 / 0.480
G21     267.5          16.3                5.8 +/-    1.51      14.1 +/-    1.51  0.050 / 0.070
G25     243.6          56.1                5.9 +/-    1.52       7.0 +/-    1.52  0.060 / 0.060
G29     328.3          53.0                3.8 +/-    0.83       4.7 +/-    0.83  0.050 / 0.050