PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-20:12:50
G02     61.2           32.4                6.2 +/-    3.12      10.3 +/-    3.12  0.030 / 0.040
G05     54.0           58.5                9.5 +/-    0.62      11.0 +/-    0.62  0.030 / 0.040
G13     124.9          17.6               10.9 +/-    1.17      25.5 +/-    1.17  0.120 / 0.160
G15     164.5          13.5               13.7 +/-    1.59      35.4 +/-    1.59  0.130 / 0.300
G21     273.8          18.5               10.0 +/-    1.21      22.7 +/-    1.21  0.030 / 0.040
G25     230.3          49.1                9.3 +/-    2.50      11.9 +/-    2.50  0.040 / 0.040
G29     329.6          56.7                9.8 +/-    0.39      11.5 +/-    0.39  0.050 / 0.050