PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-21:28:10
G02     35.3           53.6               11.0 +/-    0.50      13.4 +/-    0.50  0.040 / 0.040
G05     131.1          65.1               13.4 +/-    0.95      14.6 +/-    0.95  0.040 / 0.030
G06     56.3           11.7                8.7 +/-    2.41      23.4 +/-    2.41  0.050 / 0.050
G12     190.1          61.6               12.4 +/-    0.84      13.8 +/-    0.84  0.060 / 0.050
G25     290.8          55.7               10.2 +/-    0.99      12.1 +/-    0.99  0.040 / 0.060
G29     309.3          29.6               10.1 +/-    1.03      17.9 +/-    1.03  0.050 / 0.070