PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-13:13:10
G03     203.3          48.2               12.2 +/-    0.43      15.7 +/-    0.43  0.200 / 0.260
G07     264.5          20.7                9.2 +/-    2.26      19.8 +/-    2.26  0.170 / 0.290
G16     68.7           60.7               10.5 +/-    0.53      11.9 +/-    0.53  0.080 / 0.130
G22     182.9          29.5               11.2 +/-    0.94      19.8 +/-    0.94  0.080 / 0.120
G23     348.2          71.3                9.7 +/-    0.55      10.2 +/-    0.55  0.040 / 0.040
G26     46.6           33.6                9.7 +/-    1.45      15.9 +/-    1.45  0.040 / 0.040
G27     126.8          17.2               10.2 +/-    2.02      24.1 +/-    2.02  0.030 / 0.030