PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-21:43:10
G01     79.4           32.9                9.1 +/-    1.26      15.0 +/-    1.26  0.050 / 0.100
G07     132.6          32.5               11.1 +/-    0.94      18.5 +/-    0.94  0.050 / 0.110
G11     58.2           34.8                9.3 +/-    1.35      14.9 +/-    1.35  0.050 / 0.050
G13     283.4          38.4                9.3 +/-    4.03      13.9 +/-    4.03  0.060 / 0.050
G15     308.3          13.7                7.7 +/-    1.53      19.7 +/-    1.53  0.210 / 0.100
G17     221.5          63.6               10.4 +/-    1.27      11.5 +/-    1.27  0.130 / 0.130
G18     53.0           19.8                8.7 +/-    2.12      19.2 +/-    2.12  0.070 / 0.100
G19     218.5          35.0               10.9 +/-    1.65      17.3 +/-    1.65  0.080 / 0.090
G28     357.4          61.4                8.8 +/-    0.66       9.9 +/-    0.66  0.040 / 0.030
G30     126.0          68.1                9.7 +/-    0.46      10.3 +/-    0.46  0.040 / 0.030