PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-04:12:30
G02     199.6          23.5                5.0 +/-    1.46      10.2 +/-    1.46  0.030 / 0.040
G06     173.9          52.7                5.6 +/-    1.26       6.8 +/-    1.26  0.020 / 0.050
G13     227.4          12.5                6.2 +/-    6.19      16.2 +/-    6.19  0.040 / 0.100
G17     21.5           59.9                3.9 +/-    0.54       4.4 +/-    0.54  0.040 / 0.110
G19     328.0          70.9                3.8 +/-    0.81       4.0 +/-    0.81  0.080 / 0.150
G24     310.0          29.5                3.6 +/-    1.61       6.3 +/-    1.61  0.090 / 0.120
G28     89.6           38.6                5.0 +/-    0.41       7.4 +/-    0.41  0.080 / 0.130
G30     156.0          10.4                4.5 +/-    1.27      12.5 +/-    1.27  0.080 / 0.210