PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/05-00:57:40
G02     204.7          42.6               14.2 +/-    0.55      19.9 +/-    0.55  0.100 / 0.200
G06     147.9          75.0               11.8 +/-    0.65      12.2 +/-    0.65  0.100 / 0.160
G12     310.7          19.5                8.2 +/-    1.16      18.3 +/-    1.16  0.030 / 0.020
G17     38.1           48.1                9.1 +/-    1.91      11.7 +/-    1.91  0.040 / 0.020
G19     12.3           61.7                9.5 +/-    0.41      10.7 +/-    0.41  0.110 / 0.110
G24     291.1          40.4               12.0 +/-    7.98      17.4 +/-    7.98  0.150 / 0.080
G28     108.5          26.6               10.3 +/-    0.87      19.5 +/-    0.87  0.100 / 0.140