PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/05-12:27:50
G01     91.7           30.6                4.5 +/-    1.08       7.8 +/-    1.08  0.040 / 0.060
G07     123.6          44.4                5.5 +/-    1.86       7.5 +/-    1.86  0.040 / 0.050
G08     42.2           12.9                2.4 +/-    1.53       6.2 +/-    1.53  0.090 / 0.120
G11     71.4           41.7                4.5 +/-    0.36       6.3 +/-    0.36  0.080 / 0.140
G13     296.4          36.4                4.3 +/-    0.48       6.6 +/-    0.48  0.040 / 0.060
G17     212.5          46.9                5.3 +/-    0.91       6.9 +/-    0.91  0.030 / 0.060
G18     65.3           24.0                3.5 +/-    1.37       7.1 +/-    1.37  0.050 / 0.120
G19     212.5          26.4                5.4 +/-    1.14      10.2 +/-    1.14  0.070 / 0.120
G28     330.3          61.0                2.4 +/-    1.01       2.7 +/-    1.01  0.050 / 0.090
G30     96.1           77.6                3.0 +/-    0.64       3.0 +/-    0.64  0.070 / 0.120