PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/13-12:57:40
G02     58.8           32.3                3.2 +/-    1.73       5.4 +/-    1.73  0.070 / 0.090
G05     64.2           65.9                1.8 +/-    0.59       1.9 +/-    0.59  0.050 / 0.100
G12     181.7          32.1                7.7 +/-    2.20      13.0 +/-    2.20  0.040 / 0.030
G13     127.9          13.7                4.6 +/-    2.28      11.9 +/-    2.28  0.030 / 0.030
G15     162.8          12.4                4.6 +/-    1.29      12.2 +/-    1.29  0.050 / 0.100
G21     270.4          16.1                7.0 +/-    3.78      16.9 +/-    3.78  0.050 / 0.090
G25     239.7          53.3                5.6 +/-    1.37       6.8 +/-    1.37  0.140 / 0.400
G29     326.8          51.8                2.1 +/-    0.79       2.6 +/-    0.79  0.180 / 0.430