PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-11:57:40
G03     218.8          61.8                3.4 +/-    1.58       3.9 +/-    1.58  0.050 / 0.070
G07     253.6          12.1                2.1 +/-    2.46       5.6 +/-    2.46  0.040 / 0.080
G09     308.3          25.2                3.8 +/-    1.78       7.3 +/-    1.78  0.080 / 0.410
G14     105.3          12.2                3.3 +/-    2.12       8.7 +/-    2.12  0.110 / 0.260
G16     102.7          63.3                4.3 +/-    0.92       4.8 +/-    0.92  0.090 / 0.470
G22     187.6          44.3                4.0 +/-    0.76       5.5 +/-    0.76  0.100 / 0.480
G23     329.6          58.9                2.5 +/-    1.07       2.8 +/-    1.07  0.030 / 0.060
G26     56.4           44.7                1.8 +/-    1.10       2.4 +/-    1.10  0.030 / 0.050
G31     57.5           11.4                3.5 +/-    3.37       9.6 +/-    3.37  0.040 / 0.060