PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/01-03:27:20
G02     37.3           51.4                6.0 +/-    1.14       7.4 +/-    1.14  0.040 / 0.040
G05     128.9          65.2                6.4 +/-    0.64       6.9 +/-    0.64  0.040 / 0.040
G06     54.3           16.5                3.5 +/-    1.59       8.3 +/-    1.59  0.030 / 0.030
G12     199.8          66.0                5.6 +/-    0.56       6.0 +/-    0.56  0.030 / 0.030
G25     289.1          56.7                7.3 +/-    3.25       8.5 +/-    3.25  0.030 / 0.030
G29     312.7          35.5                5.6 +/-    0.57       8.8 +/-    0.57  0.030 / 0.030