PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-13:58:00
G01     124.5          13.7                7.9 +/-    2.59      20.2 +/-    2.59  0.040 / 0.040
G07     62.3           69.0                7.0 +/-    0.44       7.5 +/-    0.44  0.040 / 0.030
G08     48.1           36.7                5.7 +/-    0.91       8.8 +/-    0.91  0.140 / 0.310
G09     176.7          31.3                9.2 +/-    1.46      15.7 +/-    1.46  0.190 / 0.370
G11     114.2          37.0                8.8 +/-    1.12      13.5 +/-    1.12  0.040 / 0.100
G13     320.2          14.4                5.1 +/-    1.73      12.8 +/-    1.73  0.050 / 0.110
G17     200.5          17.7                8.2 +/-    0.74      19.2 +/-    0.74  0.030 / 0.050
G18     100.5          18.1                8.2 +/-    1.16      18.9 +/-    1.16  0.020 / 0.030
G28     281.3          54.5                9.2 +/-    0.95      11.0 +/-    0.95  0.040 / 0.060
G30     335.9          62.7                7.4 +/-    0.51       8.3 +/-    0.51  0.050 / 0.060