PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-13:42:50
G01     316.7          22.7                4.6 +/-    1.57       9.5 +/-    1.57  0.180 / 0.250
G10     88.3           50.1                5.3 +/-    0.89       6.7 +/-    0.89  0.170 / 0.300
G11     300.0          23.7                4.5 +/-    0.92       9.2 +/-    0.92  0.040 / 0.040
G14     309.1          70.3                5.0 +/-    0.61       5.3 +/-    0.61  0.040 / 0.040
G22     304.3          17.2                3.2 +/-    1.83       7.6 +/-    1.83  0.210 / 0.200
G25     96.8           11.1               10.9 +/-    2.42      29.6 +/-    2.42  0.150 / 0.160
G31     173.1          49.8                8.7 +/-    0.90      11.0 +/-    0.90  0.030 / 0.060
G32     19.8           62.3                5.4 +/-    0.75       6.0 +/-    0.75  0.030 / 0.040