PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/01-22:42:50
G01     70.4           32.9               12.8 +/-    0.53      21.1 +/-    0.53  0.040 / 0.080
G07     137.6          31.2               15.8 +/-    1.33      27.0 +/-    1.33  0.040 / 0.080
G11     54.9           32.3               10.2 +/-    0.85      17.1 +/-    0.85  0.030 / 0.040
G13     274.6          37.3               15.3 +/-    1.27      23.3 +/-    1.27  0.040 / 0.050
G15     301.9          15.6               10.1 +/-    3.05      24.9 +/-    3.05  0.040 / 0.060
G17     232.6          65.3               15.6 +/-    0.84      17.0 +/-    0.84  0.030 / 0.050
G18     49.3           18.4               10.7 +/-    1.19      24.5 +/-    1.19  0.070 / 0.110
G19     224.5          41.9               16.4 +/-    1.09      23.2 +/-    1.09  0.060 / 0.110
G28     21.0           59.0               12.5 +/-    0.39      14.4 +/-    0.39  0.050 / 0.120
G30     135.6          58.9               14.2 +/-    0.94      16.3 +/-    0.94  0.050 / 0.120