PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-23:58:10
G02     17.3           67.4                8.8 +/-    0.47       9.5 +/-    0.47  0.030 / 0.020
G05     154.9          48.4               15.3 +/-    1.28      19.7 +/-    1.28  0.030 / 0.020
G06     46.7           27.0                7.9 +/-    2.13      14.7 +/-    2.13  0.140 / 0.390
G12     247.0          80.0               11.4 +/-    0.78      11.5 +/-    0.78  0.160 / 0.360
G19     86.9           20.3               11.1 +/-    1.14      24.2 +/-    1.14  0.040 / 0.040
G24     218.0          12.9               15.2 +/-    3.52      39.7 +/-    3.52  0.040 / 0.050
G25     312.4          41.0               10.2 +/-    0.98      14.5 +/-    0.98  0.060 / 0.080
G29     296.1          16.6               10.6 +/-    2.06      25.4 +/-    2.06  0.050 / 0.070