PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-07:57:40
G01     80.2           33.1                4.4 +/-    0.87       7.2 +/-    0.87  0.040 / 0.060
G07     132.3          37.1                6.8 +/-    0.61      10.3 +/-    0.61  0.040 / 0.050
G11     60.1           35.0                3.2 +/-    0.32       5.1 +/-    0.32  0.090 / 0.160
G13     286.4          36.8                3.6 +/-    1.76       5.5 +/-    1.76  0.070 / 0.170
G15     309.2          13.4                0.8 +/-    0.87       2.2 +/-    0.87  0.040 / 0.050
G17     222.4          63.6                8.3 +/-    1.57       9.2 +/-    1.57  0.040 / 0.040
G19     218.9          36.2                5.1 +/-    0.86       8.0 +/-    0.86  0.050 / 0.070
G28     6.5            60.6                3.6 +/-    0.44       4.0 +/-    0.44  0.050 / 0.090
G30     123.9          68.9                5.5 +/-    0.47       5.9 +/-    0.47  0.070 / 0.100