PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-01:42:10
G02     42.1           47.5                8.1 +/-    0.54      10.5 +/-    0.54  0.030 / 0.040
G05     113.1          68.1                9.3 +/-    0.97       9.9 +/-    0.97  0.050 / 0.050
G12     190.9          57.1               11.0 +/-    1.78      12.8 +/-    1.78  0.030 / 0.050
G25     281.6          57.3                9.6 +/-    1.03      11.2 +/-    1.03  0.030 / 0.040
G29     313.4          34.4                7.5 +/-    1.64      12.1 +/-    1.64  0.060 / 0.060