PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/07-20:42:50
G01     310.3          30.5                8.4 +/-    0.90      14.6 +/-    0.90  0.080 / 0.130
G10     101.5          43.5                9.0 +/-    1.30      12.4 +/-    1.30  0.090 / 0.140
G11     286.8          28.0                5.0 +/-    0.73       9.2 +/-    0.73  0.120 / 0.150
G14     348.2          68.5                6.6 +/-    0.34       7.0 +/-    0.34  0.130 / 0.190
G18     115.0          15.9                9.6 +/-    1.86      23.4 +/-    1.86  0.030 / 0.030
G22     307.9          22.0                8.4 +/-    1.43      17.6 +/-    1.43  0.040 / 0.030
G25     85.6           15.3               10.9 +/-    3.82      26.8 +/-    3.82  0.030 / 0.020
G31     173.2          58.8                9.4 +/-    0.50      10.8 +/-    0.50  0.040 / 0.030
G32     30.2           56.3                6.9 +/-    1.01       8.1 +/-    1.01  0.140 / 0.120