PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/27-21:43:10
G03     198.3          40.7               11.3 +/-    0.60      16.2 +/-    0.60  0.100 / 0.160
G07     270.3          24.9                8.7 +/-    1.65      17.0 +/-    1.65  0.100 / 0.140
G08     156.0          10.5              -12.2 +/-   29.26     -33.7 +/-   29.26  0.080 / 0.190
G09     316.9          41.1                7.7 +/-    0.98      11.0 +/-    0.98  0.070 / 0.120
G16     60.6           59.5                9.5 +/-    0.80      10.8 +/-    0.80  0.030 / 0.040
G22     183.1          25.2               10.8 +/-    1.64      21.0 +/-    1.64  0.030 / 0.040
G23     352.7          74.7                7.8 +/-    0.89       8.0 +/-    0.89  0.190 / 0.430
G26     44.8           30.1                6.9 +/-    1.31      12.0 +/-    1.31  0.080 / 0.170
G27     120.3          21.9               10.1 +/-    2.01      21.2 +/-    2.01  0.090 / 0.120