PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/06-11:58:10
G01     42.5           17.9                2.7 +/-    0.91       6.2 +/-    0.91  0.080 / 0.170
G06     176.9          35.3                6.9 +/-    0.88      10.9 +/-    0.88  0.080 / 0.190
G13     241.7          23.7                6.8 +/-    2.24      13.7 +/-    2.24  0.190 / 0.400
G15     273.9          13.3                7.1 +/-    1.71      18.4 +/-    1.71  0.180 / 0.390
G17     3.0            70.9                5.6 +/-    0.77       5.9 +/-    0.77  0.050 / 0.070
G19     274.6          69.5                5.2 +/-    0.58       5.5 +/-    0.58  0.040 / 0.080
G24     317.9          15.8                3.1 +/-    2.50       7.6 +/-    2.50  0.030 / 0.030
G28     69.1           47.6                3.0 +/-    0.54       3.9 +/-    0.54  0.030 / 0.050
G30     153.9          30.8                6.9 +/-    1.68      11.9 +/-    1.68  0.070 / 0.140