PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/12-02:43:00
G02     37.2           51.5                6.6 +/-    1.17       8.2 +/-    1.17  0.040 / 0.040
G05     128.6          65.2                7.8 +/-    0.51       8.5 +/-    0.51  0.040 / 0.040
G06     54.5           16.0                4.9 +/-    2.18      11.8 +/-    2.18  0.030 / 0.030
G12     199.8          66.0                8.2 +/-    0.45       8.9 +/-    0.45  0.040 / 0.030
G25     289.5          56.5               10.3 +/-    3.67      12.1 +/-    3.67  0.030 / 0.020
G29     312.4          35.0                6.8 +/-    1.57      10.8 +/-    1.57  0.030 / 0.030