PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/04-12:28:10
G01     121.1          16.3                5.6 +/-    1.45      13.6 +/-    1.45  0.040 / 0.070
G07     74.4           67.5                4.8 +/-    0.90       5.1 +/-    0.90  0.040 / 0.060
G08     45.5           32.3                4.3 +/-    0.67       7.2 +/-    0.67  0.110 / 0.190
G09     175.8          26.5                5.7 +/-    1.96      10.7 +/-    1.96  0.110 / 0.210
G11     108.6          39.0                5.9 +/-    0.91       8.8 +/-    0.91  0.040 / 0.090
G13     318.6          17.8                2.4 +/-    2.14       5.6 +/-    2.14  0.050 / 0.080
G17     200.8          22.9                4.9 +/-    1.16      10.1 +/-    1.16  0.030 / 0.050
G18     96.2           19.9                5.8 +/-    1.00      12.9 +/-    1.00  0.030 / 0.040
G28     288.1          56.3                4.9 +/-    0.65       5.8 +/-    0.65  0.030 / 0.040
G30     340.3          65.7                3.4 +/-    0.47       3.7 +/-    0.47  0.030 / 0.030