PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/27-12:43:00
G02     32.2           56.7                4.2 +/-    0.99       4.9 +/-    0.99  0.020 / 0.030
G05     145.9          59.1                5.9 +/-    0.60       6.8 +/-    0.60  0.020 / 0.030
G06     51.1           22.0                3.2 +/-    2.42       6.6 +/-    2.42  0.180 / 0.230
G12     208.6          71.7                4.7 +/-    0.37       5.0 +/-    0.37  0.120 / 0.320
G19     98.4           10.4                5.4 +/-    1.86      14.9 +/-    1.86  0.030 / 0.030
G20     199.0          21.8                4.2 +/-    2.02       8.8 +/-    2.02  0.030 / 0.020
G25     300.4          52.1                5.1 +/-    2.12       6.3 +/-    2.12  0.040 / 0.050
G29     307.7          30.1                4.3 +/-    1.32       7.5 +/-    1.32  0.030 / 0.050