PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/09-12:42:40
G03     186.8          14.0                6.4 +/-    1.99      16.2 +/-    1.99  0.090 / 0.090
G07     301.2          45.7                6.1 +/-    2.77       8.1 +/-    2.77  0.120 / 0.130
G08     137.6          32.9                6.3 +/-    0.67      10.4 +/-    0.67  0.060 / 0.080
G09     318.0          68.2                5.7 +/-    0.56       6.1 +/-    0.56  0.060 / 0.070
G16     42.2           33.7                4.7 +/-    0.86       7.6 +/-    0.86  0.030 / 0.040
G23     132.6          70.8                6.3 +/-    0.61       6.6 +/-    0.61  0.030 / 0.040
G27     93.0           35.9                6.2 +/-    1.21       9.7 +/-    1.21  0.030 / 0.030
G30     280.1          19.5                7.5 +/-    1.69      16.7 +/-    1.69  0.040 / 0.030