PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/07-18:12:30
G02     215.4          58.0               12.3 +/-    0.77      14.2 +/-    0.77  0.140 / 0.270
G06     61.4           75.5               11.0 +/-    0.40      11.4 +/-    0.40  0.100 / 0.330
G12     317.2          33.3                9.3 +/-    1.74      15.3 +/-    1.74  0.050 / 0.050
G17     54.5           35.0               10.5 +/-    1.62      16.7 +/-    1.62  0.040 / 0.050
G19     38.9           48.9               10.4 +/-    1.31      13.4 +/-    1.31  0.060 / 0.090
G24     267.2          41.5               12.6 +/-    2.93      17.9 +/-    2.93  0.070 / 0.120
G28     120.0          19.7               10.9 +/-    3.52      24.2 +/-    3.52  0.080 / 0.080