PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/17-05:57:50
G01     70.6           31.9                4.0 +/-    1.06       6.7 +/-    1.06  0.050 / 0.030
G07     135.9          32.6                7.7 +/-    1.06      12.8 +/-    1.06  0.040 / 0.020
G11     56.4           35.4                5.3 +/-    1.33       8.4 +/-    1.33  0.030 / 0.030
G13     275.3          39.0                8.2 +/-    1.40      12.2 +/-    1.40  0.030 / 0.030
G15     302.1          15.9                3.6 +/-    2.01       8.8 +/-    2.01  0.110 / 0.270
G17     228.2          67.7                8.3 +/-    1.00       8.9 +/-    1.00  0.130 / 0.280
G19     221.7          42.7                9.4 +/-    1.62      13.1 +/-    1.62  0.040 / 0.050
G28     358.7          61.5                5.6 +/-    0.40       6.2 +/-    0.40  0.040 / 0.050
G30     133.8          67.6                7.4 +/-    0.23       7.9 +/-    0.23  0.060 / 0.090