PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-10:43:10
G01     280.0          41.4                9.7 +/-    1.69      13.8 +/-    1.69  0.050 / 0.040
G03     314.7          25.2                4.1 +/-    1.12       8.0 +/-    1.12  0.050 / 0.040
G10     125.7          22.3                5.2 +/-    0.58      10.8 +/-    0.58  0.080 / 0.060
G11     257.9          23.0                8.5 +/-    4.30      17.4 +/-    4.30  0.050 / 0.090
G14     28.6           57.2                4.6 +/-    1.77       5.4 +/-    1.77  0.030 / 0.040
G18     242.8          43.4                8.6 +/-    1.65      11.9 +/-    1.65  0.040 / 0.060
G22     315.2          50.1                5.0 +/-    1.03       6.3 +/-    1.03  0.090 / 0.130
G25     59.2           18.5                2.4 +/-    1.64       5.4 +/-    1.64  0.080 / 0.150
G31     71.2           76.8                5.6 +/-    0.36       5.7 +/-    0.36  0.130 / 0.170
G32     59.6           35.1                2.9 +/-    0.82       4.6 +/-    0.82  0.110 / 0.150