PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-02:12:40
G01     61.2           30.9                3.6 +/-    0.92       6.2 +/-    0.92  0.050 / 0.040
G06     181.9          12.5                4.2 +/-    2.57      11.1 +/-    2.57  0.050 / 0.050
G07     141.9          23.4                5.0 +/-    1.79      10.2 +/-    1.79  0.190 / 0.390
G11     50.0           26.6                1.9 +/-    2.07       3.5 +/-    2.07  0.240 / 0.380
G13     264.7          35.4                6.3 +/-    2.12      10.0 +/-    2.12  0.080 / 0.080
G15     294.0          16.8                3.8 +/-    1.38       9.1 +/-    1.38  0.060 / 0.080
G17     253.4          74.4                6.0 +/-    0.29       6.2 +/-    0.29  0.060 / 0.090
G19     231.9          50.3                6.8 +/-    2.12       8.6 +/-    2.12  0.120 / 0.120
G28     35.3           56.6                5.0 +/-    0.84       5.9 +/-    0.84  0.030 / 0.020