PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-17:12:50
G10     263.6          35.5               11.1 +/-    0.90      17.5 +/-    0.90  0.190 / 0.140
G13     44.0           21.8                8.4 +/-    1.92      17.6 +/-    1.92  0.100 / 0.130
G15     61.8           49.9                8.9 +/-    0.78      11.3 +/-    0.78  0.040 / 0.030
G16     287.3          11.8                9.7 +/-    5.26      25.9 +/-    5.26  0.040 / 0.030
G18     297.1          64.3               10.0 +/-    0.84      11.0 +/-    0.84  0.060 / 0.080
G20     51.3           39.0                8.7 +/-    1.36      12.8 +/-    1.36  0.060 / 0.060
G21     8.7            71.9               10.3 +/-    0.66      10.8 +/-    0.66  0.240 / 0.270
G24     124.0          12.1               11.7 +/-    3.13      31.2 +/-    3.13  0.190 / 0.230
G27     319.3          17.7               10.1 +/-    1.64      23.4 +/-    1.64  0.190 / 0.490
G29     165.3          29.5               11.0 +/-    2.26      19.5 +/-    2.26  0.220 / 0.410