PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/04-21:58:00
G03     189.5          19.9               10.5 +/-    0.91      23.2 +/-    0.91  0.080 / 0.140
G07     290.0          37.1                8.3 +/-    1.45      12.7 +/-    1.45  0.060 / 0.150
G08     143.2          27.3               12.3 +/-    0.69      22.8 +/-    0.69  0.050 / 0.080
G09     320.2          61.5                9.0 +/-    0.72      10.1 +/-    0.72  0.040 / 0.100
G16     42.9           40.3                8.0 +/-    0.60      11.6 +/-    0.60  0.040 / 0.080
G23     114.9          78.6                8.6 +/-    0.71       8.8 +/-    0.71  0.040 / 0.090
G26     43.5           11.7                7.0 +/-    3.04      18.8 +/-    3.04  0.040 / 0.040
G27     98.5           33.7               10.1 +/-    1.08      16.5 +/-    1.08  0.040 / 0.030
G30     275.0          15.8               10.7 +/-    1.63      26.1 +/-    1.63  0.070 / 0.090