PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/13-00:42:30
G02     242.4          76.5                9.3 +/-    0.47       9.5 +/-    0.47  0.130 / 0.100
G05     171.0          16.4               11.2 +/-    1.15      27.0 +/-    1.15  0.110 / 0.130
G06     40.0           62.4                7.4 +/-    0.37       8.3 +/-    0.37  0.040 / 0.040
G12     320.7          48.7                8.4 +/-    0.83      10.8 +/-    0.83  0.040 / 0.040
G17     70.8           21.6                8.0 +/-    1.45      17.0 +/-    1.45  0.050 / 0.060
G19     56.4           38.6                9.3 +/-    1.14      13.8 +/-    1.14  0.040 / 0.050
G24     243.9          34.8               11.6 +/-    2.17      18.5 +/-    2.17  0.140 / 0.320
G25     316.3          12.8                2.6 +/-   23.96       6.7 +/-   23.96  0.130 / 0.290