PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/13-09:43:00
G01     94.1           29.7                5.0 +/-    0.66       8.9 +/-    0.66  0.050 / 0.060
G07     120.9          47.8                5.1 +/-    0.95       6.6 +/-    0.95  0.060 / 0.070
G08     41.9           14.0                0.9 +/-    0.94       2.4 +/-    0.94  0.040 / 0.060
G11     75.5           43.2                5.2 +/-    0.87       7.1 +/-    0.87  0.040 / 0.060
G13     299.1          35.5                5.7 +/-    2.12       8.9 +/-    2.12  0.040 / 0.070
G17     210.5          46.1                5.3 +/-    1.85       7.1 +/-    1.85  0.040 / 0.060
G18     68.1           24.5                4.2 +/-    1.06       8.4 +/-    1.06  0.070 / 0.130
G19     211.4          24.4                5.4 +/-    0.93      10.7 +/-    0.93  0.060 / 0.120
G28     323.9          60.4                4.2 +/-    0.75       4.8 +/-    0.75  0.090 / 0.190
G30     76.8           80.2                4.8 +/-    0.69       4.9 +/-    0.69  0.090 / 0.180