PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/14-15:27:40
G02     202.3          24.6               11.0 +/-    1.03      21.6 +/-    1.03  0.080 / 0.150
G06     163.2          62.8               12.0 +/-    1.16      13.3 +/-    1.16  0.080 / 0.110
G12     304.7          13.8                7.4 +/-    1.98      19.0 +/-    1.98  0.100 / 0.270
G17     30.3           53.7                8.3 +/-    0.58      10.1 +/-    0.58  0.120 / 0.330
G19     331.8          69.4                8.8 +/-    0.79       9.4 +/-    0.79  0.040 / 0.040
G24     303.9          35.3                9.6 +/-    1.30      15.2 +/-    1.30  0.040 / 0.040
G28     94.8           36.0                7.8 +/-    0.27      12.2 +/-    0.27  0.050 / 0.050