PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/14-12:43:00
G01     63.0           31.0                5.2 +/-    0.99       8.9 +/-    0.99  0.050 / 0.060
G07     139.9          23.1                4.5 +/-    2.21       9.3 +/-    2.21  0.040 / 0.050
G11     50.1           27.7                2.8 +/-    2.13       5.2 +/-    2.13  0.110 / 0.140
G13     265.9          37.4                6.0 +/-    1.91       9.1 +/-    1.91  0.120 / 0.130
G15     297.8          15.8                2.5 +/-    1.72       6.2 +/-    1.72  0.110 / 0.150
G17     240.4          69.9                5.2 +/-    0.44       5.5 +/-    0.44  0.080 / 0.130
G18     44.0           14.7                4.1 +/-    1.65      10.2 +/-    1.65  0.030 / 0.030
G19     228.1          49.0                5.6 +/-    2.81       7.2 +/-    2.81  0.030 / 0.030
G28     17.0           60.3                5.0 +/-    1.83       5.6 +/-    1.83  0.080 / 0.090
G30     141.1          56.4                6.0 +/-    0.93       7.0 +/-    0.93  0.070 / 0.120