PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/16-13:57:50
G02     237.4          72.7                7.3 +/-    0.63       7.6 +/-    0.63  0.040 / 0.040
G05     173.7          13.5                7.5 +/-    2.57      19.3 +/-    2.57  0.030 / 0.040
G06     40.9           58.7                8.0 +/-    0.80       9.2 +/-    0.80  0.060 / 0.100
G12     321.4          51.2                6.7 +/-    1.25       8.4 +/-    1.25  0.060 / 0.110
G17     68.2           24.8                7.5 +/-    1.59      14.7 +/-    1.59  0.050 / 0.050
G19     56.6           37.7                6.4 +/-    0.45       9.6 +/-    0.45  0.030 / 0.060
G24     248.2          35.4                6.8 +/-    0.90      10.7 +/-    0.90  0.050 / 0.060