PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-15:57:40
G02     79.8           15.8                8.6 +/-    2.00      20.9 +/-    2.00  0.060 / 0.070
G05     44.6           39.5                7.8 +/-    0.68      11.5 +/-    0.68  0.050 / 0.060
G13     107.2          30.8               12.8 +/-    1.65      22.0 +/-    1.65  0.100 / 0.130
G15     148.0          33.3               12.0 +/-    1.19      19.7 +/-    1.19  0.150 / 0.110
G18     227.9          23.6               11.1 +/-    1.56      22.5 +/-    1.56  0.080 / 0.330
G20     263.0          84.1                9.6 +/-    0.52       9.6 +/-    0.52  0.120 / 0.370
G21     293.7          35.3                9.3 +/-    2.15      14.6 +/-    2.15  0.030 / 0.030
G25     211.6          30.3               11.5 +/-    3.29      20.1 +/-    3.29  0.040 / 0.030
G26     313.6          14.0              -15.6 +/-   26.38     -39.8 +/-   26.38  0.060 / 0.110
G29     30.0           83.9               10.6 +/-    0.30      10.7 +/-    0.30  0.060 / 0.130