PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-04:42:50
G02     57.0           34.1                3.8 +/-    1.76       6.2 +/-    1.76  0.210 / 0.300
G05     62.9           63.1                6.6 +/-    0.64       7.3 +/-    0.64  0.140 / 0.180
G12     187.2          39.0                7.7 +/-    1.44      11.4 +/-    1.44  0.170 / 0.350
G13     130.2          12.5                5.4 +/-    2.85      14.3 +/-    2.85  0.210 / 0.330
G15     165.0          10.0               -8.5 +/-    5.95     -23.6 +/-    5.95  0.070 / 0.060
G21     269.6          17.3                7.4 +/-    1.83      17.5 +/-    1.83  0.060 / 0.060
G25     239.7          54.3                6.4 +/-    1.89       7.7 +/-    1.89  0.050 / 0.080
G29     331.8          56.8                5.3 +/-    0.81       6.2 +/-    0.81  0.070 / 0.080