PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/19-09:12:50
G01     96.9           28.8                4.5 +/-    0.99       8.1 +/-    0.99  0.030 / 0.040
G07     118.1          50.1                8.0 +/-    1.12      10.1 +/-    1.12  0.030 / 0.040
G08     41.8           15.8                2.6 +/-    1.42       6.2 +/-    1.42  0.030 / 0.050
G11     79.1           43.8                7.2 +/-    0.59       9.8 +/-    0.59  0.030 / 0.050
G13     301.7          34.4                6.5 +/-    1.31      10.5 +/-    1.31  0.040 / 0.070
G17     209.1          43.8                9.5 +/-    1.85      13.0 +/-    1.85  0.040 / 0.080
G18     70.8           24.6                5.2 +/-    0.54      10.3 +/-    0.54  0.080 / 0.140
G19     210.4          22.2                4.5 +/-    2.12       9.5 +/-    2.12  0.080 / 0.130
G28     318.9          59.9                6.0 +/-    0.91       6.8 +/-    0.91  0.080 / 0.160
G30     59.2           80.7                5.9 +/-    0.36       5.9 +/-    0.36  0.070 / 0.170