PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-14:58:10
G01     106.6          24.9                7.0 +/-    0.58      13.8 +/-    0.58  0.030 / 0.050
G07     109.1          53.9                7.4 +/-    0.60       8.9 +/-    0.60  0.030 / 0.050
G08     42.1           22.2                5.6 +/-    1.65      11.7 +/-    1.65  0.040 / 0.060
G09     175.6          15.3                8.7 +/-    1.91      21.4 +/-    1.91  0.040 / 0.090
G11     88.7           43.4                7.5 +/-    0.63      10.3 +/-    0.63  0.050 / 0.090
G13     309.4          29.4                6.6 +/-    1.69      11.6 +/-    1.69  0.040 / 0.090
G17     205.3          35.5                9.1 +/-    1.73      14.4 +/-    1.73  0.070 / 0.150
G18     79.5           24.0                7.0 +/-    0.74      14.0 +/-    0.74  0.080 / 0.180
G28     306.2          58.5                7.4 +/-    0.61       8.5 +/-    0.61  0.040 / 0.100
G30     35.2           78.4                8.3 +/-    0.60       8.5 +/-    0.60  0.050 / 0.070