PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-01:42:50
G02     212.5          58.1               10.3 +/-    0.90      11.8 +/-    0.90  0.090 / 0.090
G06     71.8           77.9                8.3 +/-    0.57       8.4 +/-    0.57  0.120 / 0.110
G12     317.1          32.0                7.0 +/-    1.72      11.7 +/-    1.72  0.030 / 0.030
G17     51.9           37.9                6.2 +/-    1.07       9.4 +/-    1.07  0.030 / 0.020
G19     34.4           52.0                7.7 +/-    1.68       9.4 +/-    1.68  0.050 / 0.090
G24     271.1          42.1                9.1 +/-    2.65      12.8 +/-    2.65  0.050 / 0.090
G28     120.3          16.0                8.3 +/-    1.78      20.2 +/-    1.78  0.120 / 0.250