PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-11:27:40
G02     12.7           70.8                4.6 +/-    0.39       4.8 +/-    0.39  0.030 / 0.050
G05     160.5          42.3                7.7 +/-    1.08      10.8 +/-    1.08  0.030 / 0.050
G06     43.1           36.8                3.6 +/-    1.08       5.6 +/-    1.08  0.030 / 0.020
G12     287.4          77.2                5.5 +/-    0.25       5.6 +/-    0.25  0.030 / 0.020
G19     84.2           20.7                3.9 +/-    2.01       8.5 +/-    2.01  0.060 / 0.060
G24     222.9          16.7                4.6 +/-    3.59      10.9 +/-    3.59  0.060 / 0.040
G25     314.6          37.8                5.2 +/-    1.05       7.8 +/-    1.05  0.220 / 0.240
G29     294.9          18.1                4.4 +/-    1.62      10.2 +/-    1.62  0.170 / 0.200