PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/13-10:28:00
G01     102.9          27.6                4.6 +/-    0.73       8.5 +/-    0.73  0.040 / 0.030
G07     113.2          54.4                4.5 +/-    0.48       5.3 +/-    0.48  0.040 / 0.030
G08     41.5           15.2                1.6 +/-    1.83       3.9 +/-    1.83  0.060 / 0.150
G11     81.6           42.3                5.0 +/-    0.58       7.0 +/-    0.58  0.060 / 0.210
G13     306.0          31.4                3.7 +/-    1.12       6.3 +/-    1.12  0.040 / 0.060
G17     207.1          43.6                6.5 +/-    1.23       9.0 +/-    1.23  0.040 / 0.050
G18     74.5           24.3                3.3 +/-    0.88       6.5 +/-    0.88  0.040 / 0.050
G19     210.9          12.6                3.9 +/-    7.73      10.2 +/-    7.73  0.040 / 0.050
G28     324.3          61.3                3.5 +/-    1.09       3.9 +/-    1.09  0.150 / 0.220
G30     35.5           79.8                4.5 +/-    0.83       4.5 +/-    0.83  0.120 / 0.220