PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/16-23:27:40
G03     203.0          46.7                7.8 +/-    0.44      10.3 +/-    0.44  0.070 / 0.150
G07     267.5          24.7                6.5 +/-    0.90      12.7 +/-    0.90  0.090 / 0.150
G09     316.5          40.4                6.2 +/-    0.96       9.0 +/-    0.96  0.030 / 0.050
G16     68.6           61.5                6.9 +/-    0.79       7.7 +/-    0.79  0.030 / 0.050
G22     185.5          30.0                8.3 +/-    2.23      14.5 +/-    2.23  0.040 / 0.050
G23     339.0          68.5                6.0 +/-    0.57       6.4 +/-    0.57  0.040 / 0.040
G26     47.2           35.8                5.1 +/-    0.49       7.9 +/-    0.49  0.080 / 0.230
G27     127.7          17.9                9.7 +/-    2.29      22.6 +/-    2.29  0.090 / 0.240