PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/21-14:27:50
G03     314.0          24.3                4.6 +/-    1.05       9.2 +/-    1.05  0.050 / 0.060
G10     122.7          25.9                5.7 +/-    0.64      10.9 +/-    0.64  0.040 / 0.040
G11     263.8          24.5                8.6 +/-    2.01      17.1 +/-    2.01  0.060 / 0.090
G14     25.9           58.1                6.9 +/-    1.47       8.0 +/-    1.47  0.100 / 0.120
G18     128.3          -2.6                2.5 +/-    7.02       7.9 +/-    7.02  0.040 / 0.060
G22     314.9          45.1                6.3 +/-    0.73       8.4 +/-    0.73  0.040 / 0.060
G25     63.6           19.1                6.1 +/-    1.41      13.8 +/-    1.41  0.070 / 0.140
G31     95.7           79.3                7.4 +/-    0.34       7.5 +/-    0.34  0.070 / 0.140
G32     55.6           38.3                5.7 +/-    1.78       8.6 +/-    1.78  0.120 / 0.130