PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/20-01:12:50
G01     275.4          42.9                6.9 +/-    1.06       9.6 +/-    1.06  0.050 / 0.060
G03     314.8          24.2                6.2 +/-    1.21      12.3 +/-    1.21  0.040 / 0.080
G10     126.5          19.1                8.0 +/-    0.90      17.9 +/-    0.90  0.070 / 0.090
G11     256.9          21.3                8.0 +/-    4.01      17.1 +/-    4.01  0.040 / 0.060
G14     33.7           55.0                7.0 +/-    0.46       8.4 +/-    0.46  0.040 / 0.060
G18     238.5          42.3                7.6 +/-    1.69      10.7 +/-    1.69  0.050 / 0.060
G22     314.6          45.5                3.7 +/-    1.65       5.0 +/-    1.65  0.080 / 0.110
G25     58.3           18.0                4.0 +/-    1.26       9.2 +/-    1.26  0.120 / 0.110
G31     69.2           76.3                7.9 +/-    0.63       8.1 +/-    0.63  0.070 / 0.090
G32     59.8           35.3                4.8 +/-    0.78       7.5 +/-    0.78  0.060 / 0.080