PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-08:42:40
G01     68.2           31.8                4.6 +/-    0.76       7.8 +/-    0.76  0.030 / 0.040
G07     137.4          29.3                6.7 +/-    1.24      11.8 +/-    1.24  0.030 / 0.040
G11     53.9           32.6                3.4 +/-    0.38       5.6 +/-    0.38  0.030 / 0.040
G13     272.1          38.6                8.0 +/-    1.08      12.0 +/-    1.08  0.030 / 0.040
G15     301.4          15.6                1.9 +/-    1.85       4.6 +/-    1.85  0.050 / 0.110
G17     232.1          68.5                7.7 +/-    0.51       8.3 +/-    0.51  0.070 / 0.100
G19     223.6          44.8                7.5 +/-    0.58      10.1 +/-    0.58  0.060 / 0.090
G28     5.2            61.2                2.6 +/-    0.54       2.9 +/-    0.54  0.050 / 0.110
G30     136.7          63.8                8.1 +/-    1.04       8.9 +/-    1.04  0.050 / 0.060