PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/24-18:42:10
G02     39.4           50.2                9.5 +/-    1.03      11.9 +/-    1.03  0.030 / 0.030
G05     117.7          68.6               10.4 +/-    1.11      11.1 +/-    1.11  0.020 / 0.020
G12     184.9          52.9                9.5 +/-    0.52      11.5 +/-    0.52  0.040 / 0.040
G25     277.7          58.5                9.7 +/-    0.80      11.2 +/-    0.80  0.040 / 0.050
G29     313.3          34.2                7.9 +/-    1.08      12.7 +/-    1.08  0.050 / 0.060