PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/17-14:28:00
G02     308.1          80.4                4.2 +/-    0.73       4.3 +/-    0.73  0.100 / 0.200
G05     168.1          27.4                6.5 +/-    2.23      12.0 +/-    2.23  0.090 / 0.190
G06     40.4           43.5                3.9 +/-    0.86       5.3 +/-    0.86  0.100 / 0.150
G12     317.1          67.2                0.9 +/-    1.51       0.9 +/-    1.51  0.080 / 0.170
G17     80.9           15.7                4.3 +/-    1.64      10.4 +/-    1.64  0.100 / 0.240
G19     71.3           28.1                4.4 +/-    1.22       8.0 +/-    1.22  0.080 / 0.210
G24     233.4          26.0                8.1 +/-    1.28      15.4 +/-    1.28  0.040 / 0.050
G25     317.4          23.6                3.6 +/-    3.02       7.3 +/-    3.02  0.040 / 0.040