PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/24-12:57:40
G02     33.2           55.7                4.5 +/-    0.93       5.3 +/-    0.93  0.030 / 0.030
G05     144.4          60.2                6.9 +/-    0.57       7.9 +/-    0.57  0.030 / 0.030
G06     51.8           20.9                3.9 +/-    2.90       8.5 +/-    2.90  0.030 / 0.030
G12     206.1          70.5                4.5 +/-    0.59       4.8 +/-    0.59  0.030 / 0.030
G19     99.4           9.6                 6.9 +/-    2.67      19.4 +/-    2.67  0.450 / 0.270
G20     199.0          23.1                6.9 +/-    3.52      14.0 +/-    3.52  0.280 / 0.230
G25     298.7          53.0                3.9 +/-    1.47       4.7 +/-    1.47  0.270 / 0.260
G29     308.7          31.2                5.1 +/-    1.21       8.8 +/-    1.21  0.160 / 0.280