PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/08-12:42:50
G01     76.4           32.6                5.0 +/-    0.63       8.3 +/-    0.63  0.040 / 0.070
G07     133.5          33.3                5.8 +/-    1.06       9.5 +/-    1.06  0.040 / 0.060
G11     58.0           35.5                3.8 +/-    0.73       6.0 +/-    0.73  0.070 / 0.100
G13     280.7          38.9                5.5 +/-    0.69       8.2 +/-    0.69  0.070 / 0.110
G15     307.7          13.6                1.8 +/-    2.01       4.6 +/-    2.01  0.060 / 0.090
G17     222.9          59.2                6.5 +/-    1.49       7.4 +/-    1.49  0.040 / 0.090
G18     53.0           20.4                4.3 +/-    1.07       9.3 +/-    1.07  0.110 / 0.290
G19     219.2          38.3                6.0 +/-    2.49       8.9 +/-    2.49  0.120 / 0.240
G28     355.2          61.5                6.0 +/-    0.85       6.7 +/-    0.85  0.040 / 0.130
G30     128.5          67.3                6.1 +/-    0.58       6.6 +/-    0.58  0.050 / 0.130