PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/07-07:42:50
G01     43.2           19.1                3.0 +/-    4.25       6.8 +/-    4.25  0.060 / 0.070
G06     174.8          32.9                7.2 +/-    2.91      11.9 +/-    2.91  0.050 / 0.070
G11     43.9           11.9                3.0 +/-    2.08       8.1 +/-    2.08  0.090 / 0.250
G13     241.5          26.7                6.9 +/-    2.35      13.0 +/-    2.35  0.170 / 0.250
G15     274.7          14.3                3.9 +/-    2.43       9.8 +/-    2.43  0.040 / 0.060
G17     345.6          75.4                7.2 +/-    0.84       7.4 +/-    0.84  0.040 / 0.060
G19     262.8          67.8                7.3 +/-    1.20       7.8 +/-    1.20  0.030 / 0.030
G24     318.3          12.7               -1.8 +/-   24.41      -4.7 +/-   24.41  0.040 / 0.030
G28     52.7           55.3                4.1 +/-    0.90       4.9 +/-    0.90  0.120 / 0.230
G30     153.8          37.0                7.9 +/-    1.23      12.1 +/-    1.23  0.180 / 0.240