PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-06:57:50
G01     111.8          21.3                4.2 +/-    2.11       9.0 +/-    2.11  0.030 / 0.030
G07     95.5           62.1                5.9 +/-    0.60       6.6 +/-    0.60  0.040 / 0.020
G08     43.2           27.4                1.6 +/-    1.31       3.1 +/-    1.31  0.120 / 0.190
G09     174.7          18.9                5.7 +/-    1.40      12.9 +/-    1.40  0.120 / 0.160
G11     101.4          43.5                7.6 +/-    0.54      10.4 +/-    0.54  0.030 / 0.030
G13     313.8          25.3                2.6 +/-    1.24       5.0 +/-    1.24  0.030 / 0.030
G17     202.7          29.5                7.3 +/-    1.31      13.0 +/-    1.31  0.060 / 0.080
G28     291.5          54.8                4.7 +/-    2.23       5.6 +/-    2.23  0.060 / 0.080
G30     351.1          72.1                5.9 +/-    0.67       6.2 +/-    0.67  0.110 / 0.150