PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-00:58:10
G02     46.9           42.9                9.9 +/-    0.49      13.8 +/-    0.49  0.030 / 0.060
G05     93.5           68.9               11.5 +/-    0.89      12.3 +/-    0.89  0.030 / 0.050
G12     190.9          52.5               14.0 +/-    1.10      17.1 +/-    1.10  0.060 / 0.050
G25     266.4          58.6               11.6 +/-    1.14      13.3 +/-    1.14  0.100 / 0.050
G29     320.1          43.2               11.2 +/-    1.23      15.4 +/-    1.23  0.040 / 0.080