PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/04-13:58:00
G01     307.0          33.9                3.4 +/-    1.38       5.5 +/-    1.38  0.030 / 0.050
G10     106.3          38.8                4.8 +/-    0.57       7.1 +/-    0.57  0.030 / 0.050
G11     280.1          28.2                3.5 +/-    1.00       6.4 +/-    1.00  0.060 / 0.060
G14     359.8          66.6                3.0 +/-    0.66       3.3 +/-    0.66  0.050 / 0.050
G18     272.1          51.5                4.2 +/-    1.69       5.2 +/-    1.69  0.040 / 0.030
G20     120.7          13.7                5.7 +/-    1.26      14.7 +/-    1.26  0.050 / 0.020
G22     310.7          28.6                2.8 +/-    1.10       5.0 +/-    1.10  0.070 / 0.070
G25     79.8           15.9                4.3 +/-    2.08      10.5 +/-    2.08  0.080 / 0.050
G31     171.1          62.9                6.0 +/-    0.32       6.6 +/-    0.32  0.090 / 0.100
G32     31.8           55.4                3.9 +/-    0.71       4.7 +/-    0.71  0.070 / 0.090