PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/03-15:28:10
G03     286.1          69.4                8.2 +/-    0.72       8.7 +/-    0.72  0.080 / 0.150
G14     83.3           28.2                7.3 +/-    1.30      13.2 +/-    1.30  0.080 / 0.150
G16     147.7          43.4               11.5 +/-    1.01      15.9 +/-    1.01  0.030 / 0.040
G22     209.3          71.0               11.5 +/-    0.43      12.0 +/-    0.43  0.040 / 0.040
G23     307.7          38.8                7.9 +/-    1.61      11.7 +/-    1.61  0.050 / 0.070
G26     98.9           53.4               10.3 +/-    1.45      12.5 +/-    1.45  0.040 / 0.060
G31     44.9           32.5                6.0 +/-    1.05      10.0 +/-    1.05  0.030 / 0.030