PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-16:43:10
G03     247.3          71.1                9.6 +/-    0.58      10.0 +/-    0.58  0.050 / 0.040
G09     299.7          13.5                6.6 +/-   11.47      16.9 +/-   11.47  0.040 / 0.040
G14     95.1           17.2                8.4 +/-    2.91      19.7 +/-    2.91  0.130 / 0.190
G16     144.1          51.7               11.2 +/-    0.88      13.8 +/-    0.88  0.120 / 0.330
G22     195.6          59.4               10.9 +/-    0.99      12.4 +/-    0.99  0.160 / 0.260
G23     314.0          43.6                8.0 +/-    1.07      11.1 +/-    1.07  0.190 / 0.310
G26     86.2           56.3                9.3 +/-    0.86      11.0 +/-    0.86  0.040 / 0.060
G31     48.8           26.3                6.1 +/-    2.45      11.5 +/-    2.45  0.040 / 0.050