PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/31-11:57:50
G08     271.3          17.3                5.0 +/-    3.03      11.8 +/-    3.03  0.050 / 0.060
G10     62.4           58.3                2.5 +/-    0.46       2.9 +/-    0.46  0.050 / 0.060
G11     312.5          15.8                3.6 +/-    2.67       8.9 +/-    2.67  0.190 / 0.400
G14     264.9          64.0                4.2 +/-    1.00       4.6 +/-    1.00  0.120 / 0.400
G18     312.3          31.5                5.4 +/-    0.66       9.1 +/-    0.66  0.110 / 0.150
G21     154.6          13.8                4.8 +/-    2.91      12.3 +/-    2.91  0.150 / 0.180
G27     230.5          15.1                5.7 +/-    1.20      14.2 +/-    1.20  0.040 / 0.090
G31     177.0          32.6                5.9 +/-    1.41       9.9 +/-    1.41  0.050 / 0.090
G32     346.8          73.3                3.9 +/-    0.61       4.1 +/-    0.61  0.030 / 0.030