PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/04-10:42:30
G02     258.7          80.2                4.9 +/-    0.42       4.9 +/-    0.42  0.090 / 0.150
G05     170.9          19.0                6.1 +/-    2.00      13.8 +/-    2.00  0.140 / 0.140
G06     38.9           59.7                5.0 +/-    0.43       5.7 +/-    0.43  0.080 / 0.130
G12     321.0          54.3                4.6 +/-    0.51       5.5 +/-    0.51  0.080 / 0.190
G17     75.1           18.9                3.8 +/-    2.16       8.7 +/-    2.16  0.040 / 0.030
G19     62.2           35.1                4.4 +/-    1.12       7.0 +/-    1.12  0.040 / 0.030
G24     242.9          32.8                4.7 +/-    2.44       7.7 +/-    2.44  0.050 / 0.030
G25     317.4          16.2                1.9 +/-    2.49       4.6 +/-    2.49  0.050 / 0.050