PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-15:58:10
G03     283.5          70.1                9.0 +/-    0.39       9.5 +/-    0.39  0.070 / 0.190
G14     84.0           27.6                8.4 +/-    1.80      15.4 +/-    1.80  0.080 / 0.170
G16     147.4          43.9               11.7 +/-    1.24      16.1 +/-    1.24  0.030 / 0.040
G22     209.4          70.7                9.6 +/-    0.40      10.1 +/-    0.40  0.040 / 0.030
G23     308.0          38.9                7.3 +/-    1.80      10.7 +/-    1.80  0.050 / 0.100
G26     98.0           53.6               11.9 +/-    0.74      14.4 +/-    0.74  0.100 / 0.090
G31     45.0           32.2                7.9 +/-    1.36      13.2 +/-    1.36  0.030 / 0.030