PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/26-12:57:30
G02     55.9           35.9                1.4 +/-    0.68       2.2 +/-    0.68  0.040 / 0.050
G05     67.8           66.5                2.6 +/-    0.31       2.8 +/-    0.31  0.030 / 0.050
G12     185.3          37.0                3.4 +/-    2.28       5.2 +/-    2.28  0.040 / 0.080
G13     130.7          12.4                4.4 +/-    1.42      11.6 +/-    1.42  0.040 / 0.090
G21     269.2          16.8                4.7 +/-    1.14      11.2 +/-    1.14  0.050 / 0.050
G25     233.4          53.8                3.8 +/-    1.36       4.5 +/-    1.36  0.040 / 0.050
G29     326.7          51.7                2.4 +/-    1.10       2.9 +/-    1.10  0.030 / 0.030