PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-08:28:00
G01     99.4           29.0                4.9 +/-    1.40       8.8 +/-    1.40  0.030 / 0.030
G07     117.4          51.3                7.2 +/-    0.74       8.9 +/-    0.74  0.030 / 0.030
G08     41.5           12.1                2.7 +/-    0.61       7.1 +/-    0.61  0.040 / 0.060
G11     76.9           41.6                6.4 +/-    0.58       9.1 +/-    0.58  0.040 / 0.050
G13     302.9          33.1                3.7 +/-    1.33       6.0 +/-    1.33  0.060 / 0.110
G17     208.5          47.5                7.7 +/-    1.91      10.0 +/-    1.91  0.060 / 0.120
G18     70.4           24.0                4.4 +/-    0.56       8.8 +/-    0.56  0.070 / 0.180
G19     211.7          16.2                5.0 +/-    2.10      12.1 +/-    2.10  0.080 / 0.170
G28     330.0          61.6                4.3 +/-    0.69       4.8 +/-    0.69  0.060 / 0.130
G30     54.4           80.5                5.8 +/-    0.44       5.8 +/-    0.44  0.060 / 0.120