PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/21-17:43:00
G08     319.4          12.6                9.0 +/-    2.85      23.7 +/-    2.85  0.120 / 0.290
G10     306.0          54.6                9.0 +/-    1.06      10.8 +/-    1.06  0.150 / 0.210
G14     211.5          16.9               10.0 +/-    3.24      23.8 +/-    3.24  0.070 / 0.110
G15     45.8           25.4                8.5 +/-    2.31      16.4 +/-    2.31  0.060 / 0.130
G20     5.3            64.8                9.7 +/-    0.64      10.6 +/-    0.64  0.030 / 0.030
G21     112.9          68.4               11.4 +/-    0.69      12.2 +/-    0.69  0.040 / 0.030
G24     87.1           27.4                8.7 +/-    2.36      16.0 +/-    2.36  0.110 / 0.070
G27     296.6          35.0                9.4 +/-    5.71      14.9 +/-    5.71  0.080 / 0.070
G32     212.9          36.9               10.9 +/-    1.73      16.7 +/-    1.73  0.200 / 0.230