PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-18:57:40
G02     212.2          53.1               11.3 +/-    0.98      13.8 +/-    0.98  0.080 / 0.100
G06     73.3           77.0               10.5 +/-    0.31      10.7 +/-    0.31  0.080 / 0.110
G12     317.5          33.8                7.6 +/-    0.91      12.3 +/-    0.91  0.070 / 0.080
G17     52.4           36.4                9.3 +/-    1.20      14.4 +/-    1.20  0.050 / 0.070
G19     28.8           54.8                9.1 +/-    1.61      10.9 +/-    1.61  0.030 / 0.020
G24     271.7          42.7               11.9 +/-    2.40      16.5 +/-    2.40  0.030 / 0.030
G28     118.7          17.9               11.2 +/-    1.07      25.9 +/-    1.07  0.040 / 0.050