PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-22:27:50
G01     90.3           31.8               12.0 +/-    0.61      20.3 +/-    0.61  0.090 / 0.090
G07     125.3          46.1               13.1 +/-    0.99      17.3 +/-    0.99  0.080 / 0.090
G08     42.6           11.4                8.6 +/-    2.35      23.3 +/-    2.35  0.070 / 0.130
G11     71.3           41.2               10.3 +/-    0.82      14.6 +/-    0.82  0.060 / 0.110
G13     295.2          35.6               11.1 +/-    0.99      17.4 +/-    0.99  0.050 / 0.050
G17     215.2          49.8               13.3 +/-    1.12      16.8 +/-    1.12  0.040 / 0.060
G18     64.5           24.1                9.9 +/-    0.79      19.8 +/-    0.79  0.040 / 0.070
G19     214.6          26.6               13.5 +/-    3.80      25.4 +/-    3.80  0.040 / 0.100
G28     350.0          61.7                8.3 +/-    0.46       9.3 +/-    0.46  0.040 / 0.060
G30     108.0          73.5               10.9 +/-    0.72      11.4 +/-    0.72  0.030 / 0.050