PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-13:28:10
G10     99.3           44.6                5.4 +/-    1.27       7.3 +/-    1.27  0.040 / 0.030
G11     291.2          26.3                5.9 +/-    1.30      11.1 +/-    1.30  0.050 / 0.040
G14     333.8          69.5                3.6 +/-    0.45       3.8 +/-    0.45  0.090 / 0.120
G18     114.1          16.1               12.8 +/-    6.26      30.9 +/-    6.26  0.130 / 0.120
G22     308.1          24.1                3.9 +/-    0.64       7.7 +/-    0.64  0.190 / 0.310
G25     88.9           14.7                7.0 +/-    1.37      17.6 +/-    1.37  0.150 / 0.220
G31     168.8          59.5                6.9 +/-    0.54       7.8 +/-    0.54  0.070 / 0.060
G32     30.9           55.9                4.0 +/-    0.77       4.7 +/-    0.77  0.030 / 0.050