PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/22-12:28:00
G02     14.0           70.0                5.6 +/-    0.44       5.9 +/-    0.44  0.040 / 0.050
G05     160.4          43.2                9.5 +/-    1.00      13.2 +/-    1.00  0.030 / 0.040
G06     43.9           34.9                4.4 +/-    1.06       7.0 +/-    1.06  0.140 / 0.230
G12     281.3          78.0                4.8 +/-    0.52       4.9 +/-    0.52  0.280 / 0.190
G19     85.3           19.8                5.1 +/-    1.73      11.4 +/-    1.73  0.020 / 0.020
G24     222.1          15.9                5.2 +/-    2.80      12.6 +/-    2.80  0.030 / 0.020
G25     314.0          39.2                3.5 +/-    1.47       5.2 +/-    1.47  0.050 / 0.090
G29     296.1          19.5                4.5 +/-    1.28       9.9 +/-    1.28  0.090 / 0.070