PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-10:12:50
G01     115.0          20.7                6.8 +/-    1.41      14.8 +/-    1.41  0.040 / 0.020
G07     92.3           63.5                7.1 +/-    0.71       7.8 +/-    0.71  0.030 / 0.020
G08     42.9           25.8                4.4 +/-    2.23       8.4 +/-    2.23  0.090 / 0.180
G09     173.4          17.6                5.4 +/-    1.33      12.5 +/-    1.33  0.100 / 0.170
G11     99.0           41.5                7.7 +/-    0.76      11.0 +/-    0.76  0.080 / 0.180
G13     315.1          23.3                3.9 +/-    1.88       8.0 +/-    1.88  0.080 / 0.190
G17     202.3          30.6                6.1 +/-    1.23      10.5 +/-    1.23  0.030 / 0.040
G18     88.1           22.3                5.7 +/-    1.61      11.9 +/-    1.61  0.030 / 0.030
G28     299.9          58.6                5.2 +/-    1.28       6.0 +/-    1.28  0.100 / 0.170
G30     351.6          71.5                5.8 +/-    0.36       6.1 +/-    0.36  0.110 / 0.170