PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/05-13:57:50
G03     233.2          68.0               11.2 +/-    0.42      12.0 +/-    0.42  0.050 / 0.060
G09     303.3          17.8                6.8 +/-    2.23      15.9 +/-    2.23  0.050 / 0.050
G14     98.4           18.1                8.5 +/-    1.61      19.7 +/-    1.61  0.120 / 0.180
G16     123.5          59.4               10.8 +/-    0.82      12.4 +/-    0.82  0.120 / 0.150
G22     188.7          51.9               12.1 +/-    1.01      14.9 +/-    1.01  0.100 / 0.270
G23     323.7          53.5                9.6 +/-    1.20      11.6 +/-    1.20  0.120 / 0.340
G26     66.9           50.2                8.4 +/-    0.42      10.6 +/-    0.42  0.050 / 0.060
G31     52.9           17.7                5.9 +/-    0.42      13.7 +/-    0.42  0.040 / 0.050