PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/19-00:58:10
G01     58.5           29.9                5.6 +/-    1.24       9.9 +/-    1.24  0.060 / 0.130
G07     142.3          17.3                8.9 +/-    1.78      20.8 +/-    1.78  0.080 / 0.110
G11     46.8           21.4                4.7 +/-    2.24      10.1 +/-    2.24  0.080 / 0.100
G13     260.2          35.3                7.3 +/-    2.08      11.5 +/-    2.08  0.080 / 0.110
G15     292.4          16.4                6.8 +/-    1.66      16.4 +/-    1.66  0.050 / 0.080
G17     271.7          79.2                7.5 +/-    0.61       7.6 +/-    0.61  0.080 / 0.070
G19     233.3          51.1                7.5 +/-    2.45       9.4 +/-    2.45  0.040 / 0.030
G28     32.5           57.9                6.9 +/-    0.94       8.0 +/-    0.94  0.040 / 0.040
G30     144.7          51.2                8.3 +/-    0.86      10.3 +/-    0.86  0.160 / 0.270