PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-14:42:30
G07     30.8           68.1                8.1 +/-    0.97       8.6 +/-    0.97  0.030 / 0.050
G08     64.5           48.9                7.9 +/-    0.90      10.1 +/-    0.90  0.030 / 0.040
G09     180.9          51.3               11.1 +/-    2.19      13.8 +/-    2.19  0.060 / 0.140
G11     129.7          28.3               10.6 +/-    1.73      19.3 +/-    1.73  0.050 / 0.090
G18     113.3          10.2              -10.4 +/-   19.12     -28.9 +/-   19.12  0.080 / 0.210
G23     159.3          18.0               10.2 +/-    3.62      23.7 +/-    3.62  0.080 / 0.160
G27     41.0           18.3                6.5 +/-    0.90      14.8 +/-    0.90  0.080 / 0.130
G28     254.9          40.6               10.8 +/-    1.54      15.6 +/-    1.54  0.070 / 0.150
G30     323.4          53.7                8.8 +/-    0.81      10.7 +/-    0.81  0.200 / 0.390