PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/07-10:13:00
G02     353.1          76.3                4.2 +/-    0.52       4.3 +/-    0.52  0.080 / 0.090
G05     164.6          35.7                7.7 +/-    1.23      12.1 +/-    1.23  0.080 / 0.130
G06     42.0           38.3                2.6 +/-    0.98       3.9 +/-    0.98  0.040 / 0.030
G12     305.2          74.1                3.5 +/-    0.80       3.6 +/-    0.80  0.040 / 0.030
G19     76.8           27.1                4.4 +/-    1.14       8.3 +/-    1.14  0.030 / 0.020
G25     315.3          37.9                5.0 +/-    1.50       7.5 +/-    1.50  0.030 / 0.040
G29     289.0          11.9                5.0 +/-    2.62      13.4 +/-    2.62  0.110 / 0.330