PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-20:27:50
G01     272.1          41.5                8.2 +/-    1.05      11.7 +/-    1.05  0.050 / 0.090
G03     315.6          28.3                5.7 +/-    1.05      10.3 +/-    1.05  0.050 / 0.070
G10     129.0          17.1                8.9 +/-    1.09      21.1 +/-    1.09  0.090 / 0.210
G11     249.8          20.2                9.6 +/-    1.94      21.1 +/-    1.94  0.070 / 0.190
G14     42.8           50.2                5.9 +/-    0.37       7.4 +/-    0.37  0.080 / 0.210
G18     231.1          39.1                9.8 +/-    2.09      14.4 +/-    2.09  0.080 / 0.210
G22     314.3          50.4                6.8 +/-    1.04       8.6 +/-    1.04  0.040 / 0.080
G25     48.3           13.5                5.3 +/-    1.07      13.6 +/-    1.07  0.040 / 0.070
G31     65.5           78.7                7.6 +/-    0.75       7.7 +/-    0.75  0.060 / 0.150
G32     62.6           33.9                6.0 +/-    0.49       9.8 +/-    0.49  0.070 / 0.140