PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-19:42:50
G07     32.2           68.1               10.5 +/-    1.18      11.2 +/-    1.18  0.030 / 0.040
G08     61.5           46.7                9.2 +/-    1.72      12.1 +/-    1.72  0.030 / 0.030
G09     180.4          50.3               12.8 +/-    1.02      16.1 +/-    1.02  0.040 / 0.060
G11     128.4          28.6               13.5 +/-    3.16      24.3 +/-    3.16  0.040 / 0.050
G18     111.6          10.5                9.4 +/-   16.69      25.9 +/-   16.69  0.140 / 0.120
G23     160.5          20.0               12.5 +/-    2.20      27.4 +/-    2.20  0.190 / 0.160
G27     41.2           18.6                7.3 +/-    1.40      16.6 +/-    1.40  0.110 / 0.090
G28     256.3          42.2               13.8 +/-    2.51      19.4 +/-    2.51  0.090 / 0.120
G30     321.1          51.6                9.6 +/-    0.97      11.9 +/-    0.97  0.050 / 0.050