PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-09:27:50
G01     315.2          25.1                4.2 +/-    2.06       8.2 +/-    2.06  0.030 / 0.060
G10     92.7           47.9                5.2 +/-    0.34       6.8 +/-    0.34  0.040 / 0.060
G11     295.4          25.8                5.3 +/-    1.28      10.3 +/-    1.28  0.090 / 0.230
G14     311.4          69.5                4.6 +/-    0.70       4.9 +/-    0.70  0.080 / 0.200
G18     295.3          45.3                6.7 +/-    0.82       9.0 +/-    0.82  0.030 / 0.050
G22     306.1          20.9                5.0 +/-    3.54      10.9 +/-    3.54  0.030 / 0.050
G25     93.8           12.5                3.3 +/-    1.46       8.7 +/-    1.46  0.090 / 0.190
G31     170.6          54.1                7.3 +/-    1.68       8.7 +/-    1.68  0.070 / 0.160
G32     25.1           59.5                3.8 +/-    0.59       4.4 +/-    0.59  0.090 / 0.190