PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/27-07:42:50
G01     251.0          36.6                7.4 +/-    0.69      11.5 +/-    0.69  0.060 / 0.080
G03     316.5          44.2                4.5 +/-    1.50       6.1 +/-    1.50  0.060 / 0.110
G11     238.2          12.1                3.6 +/-    4.14       9.7 +/-    4.14  0.030 / 0.050
G14     58.3           41.8                3.3 +/-    0.60       4.6 +/-    0.60  0.030 / 0.050
G18     220.4          28.0                6.3 +/-    1.79      11.5 +/-    1.79  0.080 / 0.070
G22     305.6          65.7                3.5 +/-    1.06       3.8 +/-    1.06  0.090 / 0.100
G25     41.5           11.0                2.8 +/-    2.56       7.6 +/-    2.56  0.050 / 0.100
G26     138.2          36.8                6.8 +/-    1.01      10.5 +/-    1.01  0.050 / 0.090
G31     42.2           58.5                3.4 +/-    0.42       3.9 +/-    0.42  0.140 / 0.410
G32     74.9           25.5                4.4 +/-    0.45       8.5 +/-    0.45  0.120 / 0.360