PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-13:12:30
G10     103.7          41.8                5.0 +/-    0.98       7.1 +/-    0.98  0.060 / 0.040
G11     286.8          27.0                2.8 +/-    0.87       5.3 +/-    0.87  0.050 / 0.040
G14     343.8          68.4                3.3 +/-    0.61       3.5 +/-    0.61  0.120 / 0.120
G18     282.3          48.8               13.1 +/-    2.98      16.7 +/-    2.98  0.080 / 0.100
G22     309.7          27.5                3.6 +/-    1.35       6.7 +/-    1.35  0.090 / 0.140
G25     85.2           16.1                5.3 +/-    2.23      12.9 +/-    2.23  0.110 / 0.160
G31     165.6          64.0                7.5 +/-    0.31       8.2 +/-    0.31  0.040 / 0.060
G32     35.3           52.9                4.3 +/-    1.03       5.2 +/-    1.03  0.040 / 0.040