PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-16:57:50
G07     306.7          48.4               10.4 +/-    2.18      13.4 +/-    2.18  0.080 / 0.070
G08     131.4          37.1               12.3 +/-    0.69      18.8 +/-    0.69  0.070 / 0.110
G09     314.3          72.8               10.2 +/-    0.73      10.6 +/-    0.73  0.140 / 0.290
G16     41.9           32.4                7.7 +/-    1.33      12.9 +/-    1.33  0.160 / 0.300
G23     139.0          69.3               10.8 +/-    0.58      11.5 +/-    0.58  0.040 / 0.030
G27     88.2           37.2               11.7 +/-    1.46      17.8 +/-    1.46  0.040 / 0.030
G30     282.6          20.2               10.8 +/-    3.17      23.6 +/-    3.17  0.050 / 0.060