PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-10:12:50
G01     124.4          13.7                4.5 +/-    2.19      11.4 +/-    2.19  0.040 / 0.070
G07     63.2           68.8                3.8 +/-    0.61       4.1 +/-    0.61  0.040 / 0.030
G08     47.1           34.3                3.0 +/-    1.02       4.8 +/-    1.02  0.190 / 0.270
G09     175.5          29.9                5.1 +/-    0.87       8.9 +/-    0.87  0.140 / 0.210
G11     112.6          37.1                5.8 +/-    1.09       8.8 +/-    1.09  0.130 / 0.300
G13     320.1          14.6                3.3 +/-    2.12       8.3 +/-    2.12  0.130 / 0.380
G17     199.5          20.1                3.2 +/-    4.07       7.0 +/-    4.07  0.030 / 0.030
G18     99.9           18.1                4.5 +/-    3.16      10.3 +/-    3.16  0.030 / 0.030
G28     280.9          54.3                3.4 +/-    3.17       4.1 +/-    3.17  0.160 / 0.220
G30     333.8          61.5                3.2 +/-    0.71       3.5 +/-    0.71  0.130 / 0.210