PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-18:13:10
G02     33.3           54.6              -16.2 +/-    0.88     -19.4 +/-    0.88  0.100 / 0.170
G05     134.8          64.4               10.7 +/-    0.65      11.7 +/-    0.65  0.090 / 0.120
G06     55.3           12.7                5.6 +/-    2.25      14.7 +/-    2.25  0.050 / 0.050
G12     195.8          65.3                8.1 +/-    0.41       8.8 +/-    0.41  0.040 / 0.050
G25     293.2          54.5                8.9 +/-    2.01      10.6 +/-    2.01  0.050 / 0.050
G29     309.3          30.3                8.7 +/-    1.63      15.2 +/-    1.63  0.060 / 0.060