PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-00:13:10
G02     201.8          31.4               10.3 +/-    1.37      17.4 +/-    1.37  0.080 / 0.080
G06     171.2          61.6               10.8 +/-    0.73      12.1 +/-    0.73  0.080 / 0.080
G17     33.7           50.9                7.7 +/-    1.03       9.6 +/-    1.03  0.030 / 0.040
G19     351.5          67.5                8.1 +/-    0.84       8.7 +/-    0.84  0.040 / 0.030
G24     300.3          37.3                8.3 +/-    1.15      12.7 +/-    1.15  0.070 / 0.080
G28     96.3           37.0                9.6 +/-    0.61      14.7 +/-    0.61  0.050 / 0.070