PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-13:43:10
G02     315.5          80.4                5.9 +/-    0.59       6.0 +/-    0.59  0.120 / 0.160
G05     168.3          27.6                8.5 +/-    1.69      15.7 +/-    1.69  0.200 / 0.160
G06     40.5           43.0                4.1 +/-    0.96       5.7 +/-    0.96  0.040 / 0.030
G12     316.7          68.2                4.9 +/-    0.54       5.2 +/-    0.54  0.030 / 0.040
G17     81.5           15.0                6.9 +/-    1.80      17.2 +/-    1.80  0.040 / 0.050
G19     71.7           27.8                6.8 +/-    2.53      12.5 +/-    2.53  0.050 / 0.040
G24     233.1          25.7                8.0 +/-    2.23      15.4 +/-    2.23  0.060 / 0.100
G25     317.3          24.0                3.8 +/-    1.81       7.5 +/-    1.81  0.080 / 0.090