PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/04-01:42:50
G02     215.5          61.9               13.4 +/-    0.57      14.9 +/-    0.57  0.040 / 0.100
G06     58.7           75.0                9.8 +/-    0.94      10.1 +/-    0.94  0.050 / 0.090
G12     318.4          35.4                8.9 +/-    2.05      14.0 +/-    2.05  0.220 / 0.410
G17     55.0           35.7                7.8 +/-    1.45      12.2 +/-    1.45  0.120 / 0.410
G19     38.9           49.6                8.7 +/-    0.54      11.0 +/-    0.54  0.030 / 0.050
G24     265.9          41.5               11.5 +/-    1.08      16.3 +/-    1.08  0.050 / 0.060
G28     122.8          13.2               10.3 +/-    2.01      26.7 +/-    2.01  0.050 / 0.080