PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/13-13:43:10
G02     53.0           38.5                4.2 +/-    1.21       6.3 +/-    1.21  0.100 / 0.310
G05     76.9           69.0                3.8 +/-    0.30       4.0 +/-    0.30  0.090 / 0.400
G12     185.6          40.1                5.7 +/-    0.74       8.3 +/-    0.74  0.040 / 0.060
G13     133.1          10.4               -2.6 +/-   16.19      -7.2 +/-   16.19  0.040 / 0.060
G21     266.4          14.3                5.0 +/-    2.52      12.6 +/-    2.52  0.170 / 0.350
G25     239.8          56.1                5.0 +/-    2.03       5.9 +/-    2.03  0.240 / 0.360
G29     324.2          48.4                2.5 +/-    0.67       3.2 +/-    0.67  0.040 / 0.060