PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-15:58:00
G07     19.1           68.6               12.7 +/-    0.87      13.5 +/-    0.87  0.050 / 0.050
G08     62.5           48.4               12.0 +/-    0.65      15.5 +/-    0.65  0.040 / 0.040
G09     179.2          47.5               13.6 +/-    1.12      17.7 +/-    1.12  0.030 / 0.030
G11     129.3          28.4               13.9 +/-    2.11      25.1 +/-    2.11  0.030 / 0.020
G18     113.5          11.0               12.3 +/-    2.68      33.6 +/-    2.68  0.030 / 0.040
G23     159.1          14.9               12.3 +/-    3.14      30.6 +/-    3.14  0.040 / 0.040
G27     39.8           15.7               10.4 +/-    2.12      25.5 +/-    2.12  0.150 / 0.390
G28     261.1          46.6               14.6 +/-    4.31      19.2 +/-    4.31  0.190 / 0.310
G30     322.1          52.1               12.6 +/-    0.53      15.5 +/-    0.53  0.180 / 0.290