PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/13-00:12:50
G10     259.2          32.4               12.2 +/-    1.69      20.4 +/-    1.69  0.070 / 0.090
G13     46.8           25.3                9.4 +/-    0.98      18.3 +/-    0.98  0.050 / 0.100
G15     71.1           55.1                8.0 +/-    0.30       9.5 +/-    0.30  0.170 / 0.410
G16     288.2          13.4                9.7 +/-    2.28      25.1 +/-    2.28  0.170 / 0.350
G18     284.1          60.6               11.7 +/-    1.06      13.2 +/-    1.06  0.120 / 0.250
G20     50.0           39.4                8.0 +/-    0.98      11.7 +/-    0.98  0.140 / 0.360
G26     261.1          11.4               11.8 +/-    2.08      32.1 +/-    2.08  0.030 / 0.090
G27     320.7          14.4                7.5 +/-    3.23      19.0 +/-    3.23  0.030 / 0.090
G29     166.0          36.6               11.3 +/-    0.84      17.4 +/-    0.84  0.050 / 0.100