PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-22:43:00
G02     205.7          43.8               17.1 +/-    2.11      23.4 +/-    2.11  0.070 / 0.170
G06     137.1          76.8               13.6 +/-    0.73      14.0 +/-    0.73  0.060 / 0.190
G12     311.9          21.9                8.5 +/-    2.87      18.0 +/-    2.87  0.040 / 0.070
G17     40.3           46.4                9.9 +/-    0.57      13.1 +/-    0.57  0.050 / 0.090
G19     14.1           61.0               11.4 +/-    0.93      12.8 +/-    0.93  0.080 / 0.140
G24     288.2          41.2               11.5 +/-    0.99      16.4 +/-    0.99  0.060 / 0.180
G28     110.0          25.5               13.7 +/-    1.63      26.5 +/-    1.63  0.080 / 0.070