PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/08-19:28:10
G02     31.9           56.3                9.1 +/-    1.27      10.7 +/-    1.27  0.030 / 0.040
G05     137.6          63.1               11.2 +/-    0.62      12.4 +/-    0.62  0.030 / 0.030
G06     55.1           13.1                8.9 +/-    2.03      23.3 +/-    2.03  0.030 / 0.030
G12     189.5          63.4                9.4 +/-    0.56      10.4 +/-    0.56  0.030 / 0.030
G19     99.9           11.7                9.4 +/-    2.30      25.3 +/-    2.30  0.070 / 0.050
G25     294.3          54.9               10.0 +/-    3.38      11.9 +/-    3.38  0.070 / 0.070
G29     307.5          27.6                7.9 +/-    2.71      14.5 +/-    2.71  0.120 / 0.230