PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-08:12:50
G01     269.6          41.9                5.8 +/-    1.83       8.2 +/-    1.83  0.060 / 0.080
G03     316.2          31.7                4.2 +/-    1.64       7.1 +/-    1.64  0.060 / 0.090
G10     129.4          15.7                5.1 +/-    1.82      12.6 +/-    1.82  0.040 / 0.070
G11     250.2          19.4                6.5 +/-    1.92      14.6 +/-    1.92  0.050 / 0.060
G14     43.0           50.2                2.5 +/-    0.47       3.2 +/-    0.47  0.070 / 0.150
G18     232.4          38.9                6.5 +/-    1.78       9.6 +/-    1.78  0.080 / 0.130
G22     314.3          53.3                3.5 +/-    1.07       4.3 +/-    1.07  0.040 / 0.070
G25     53.1           16.7                1.5 +/-    1.14       3.6 +/-    1.14  0.040 / 0.080
G31     56.1           73.0                4.7 +/-    0.96       4.9 +/-    0.96  0.100 / 0.290
G32     62.2           34.8                2.5 +/-    1.22       4.0 +/-    1.22  0.100 / 0.240