PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/23-20:57:50
G08     314.4          16.4               13.5 +/-    1.83      32.5 +/-    1.83  0.080 / 0.630
G10     317.6          57.1               13.1 +/-    0.74      15.3 +/-    0.74  0.090 / 0.510
G14     214.7          25.3               18.3 +/-    3.75      35.5 +/-    3.75  0.060 / 0.130
G15     45.8           16.1               12.2 +/-    1.50      29.6 +/-    1.50  0.070 / 0.110
G18     27.6           61.9               13.8 +/-    0.64      15.4 +/-    0.64  0.050 / 0.070
G20     80.8           10.2               12.4 +/-    3.29      34.5 +/-    3.29  0.070 / 0.080
G24     83.8           30.2               14.7 +/-    0.78      25.6 +/-    0.78  0.090 / 0.250
G27     282.3          38.1               13.1 +/-    1.16      19.6 +/-    1.16  0.080 / 0.220
G32     218.3          42.5               16.7 +/-    0.90      23.3 +/-    0.90  0.040 / 0.060