PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/26-10:42:50
G01     41.4           16.9                4.1 +/-    2.95       9.7 +/-    2.95  0.200 / 0.310
G06     173.9          36.9                7.5 +/-    1.78      11.4 +/-    1.78  0.420 / 0.350
G13     238.4          24.3                7.0 +/-    1.93      13.8 +/-    1.93  0.040 / 0.030
G15     273.2          12.9                3.8 +/-    1.44      10.0 +/-    1.44  0.030 / 0.020
G17     350.4          73.6                5.7 +/-    0.54       5.9 +/-    0.54  0.040 / 0.040
G19     272.5          69.6                5.3 +/-    0.69       5.6 +/-    0.69  0.040 / 0.040
G24     317.5          15.8                2.4 +/-    2.76       5.7 +/-    2.76  0.090 / 0.240
G28     59.6           53.3                4.7 +/-    0.79       5.7 +/-    0.79  0.080 / 0.280
G30     154.5          32.0                6.2 +/-    1.49      10.4 +/-    1.49  0.070 / 0.110