PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-16:57:50
G01     227.1          17.7               12.3 +/-    3.20      28.7 +/-    3.20  0.040 / 0.030
G03     279.9          70.9               11.5 +/-    0.77      12.1 +/-    0.77  0.040 / 0.040
G14     84.9           26.7                8.5 +/-    2.33      16.0 +/-    2.33  0.100 / 0.160
G16     147.3          44.4               12.9 +/-    1.32      17.5 +/-    1.32  0.090 / 0.180
G22     210.2          70.4               13.1 +/-    0.67      13.8 +/-    0.67  0.070 / 0.080
G23     308.1          38.8                9.5 +/-    1.15      14.1 +/-    1.15  0.050 / 0.070
G26     97.1           53.8               14.3 +/-    0.59      17.3 +/-    0.59  0.040 / 0.050
G31     45.2           31.8                8.7 +/-    1.75      14.7 +/-    1.75  0.040 / 0.070