PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/17-20:42:40
G03     192.5          28.7               14.1 +/-    2.81      25.3 +/-    2.81  0.090 / 0.290
G07     280.4          31.4               14.0 +/-    1.50      23.9 +/-    1.50  0.110 / 0.330
G08     150.2          18.9               14.5 +/-    1.19      32.8 +/-    1.19  0.120 / 0.380
G09     319.9          51.6               12.6 +/-    2.17      15.7 +/-    2.17  0.090 / 0.310
G16     47.5           49.1               12.3 +/-    0.46      15.7 +/-    0.46  0.040 / 0.070
G22     179.3          14.3               15.6 +/-    4.05      39.4 +/-    4.05  0.040 / 0.060
G23     50.9           82.5               10.5 +/-    0.57      10.6 +/-    0.57  0.060 / 0.110
G26     43.0           19.7               10.1 +/-    0.82      22.4 +/-    0.82  0.060 / 0.100
G27     109.7          28.9               14.2 +/-    1.04      25.4 +/-    1.04  0.050 / 0.110
G30     267.5          10.1              -15.8 +/-   21.17     -43.9 +/-   21.17  0.080 / 0.130