PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-16:58:10
G03     208.6          57.6               11.4 +/-    0.79      13.2 +/-    0.79  0.060 / 0.070
G07     255.7          13.8               12.3 +/-    3.17      31.4 +/-    3.17  0.050 / 0.080
G09     309.3          26.0                8.6 +/-    1.30      16.3 +/-    1.30  0.040 / 0.040
G16     98.4           64.3               12.0 +/-    0.59      13.1 +/-    0.59  0.040 / 0.030
G22     185.9          40.9               12.1 +/-    0.79      17.4 +/-    0.79  0.110 / 0.250
G23     332.6          61.3                9.5 +/-    0.57      10.7 +/-    0.57  0.060 / 0.330
G26     54.1           43.3               11.1 +/-    1.04      15.3 +/-    1.04  0.050 / 0.050
G31     58.9           10.1                9.2 +/-    2.05      25.7 +/-    2.05  0.040 / 0.040