PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/15-02:42:50
G01     303.6          35.3               10.2 +/-    1.02      16.1 +/-    1.02  0.050 / 0.100
G10     109.3          38.4                9.1 +/-    0.74      13.6 +/-    0.74  0.050 / 0.100
G11     276.1          29.2                9.5 +/-    1.21      17.0 +/-    1.21  0.030 / 0.040
G14     7.9            64.4                8.5 +/-    0.96       9.3 +/-    0.96  0.030 / 0.040
G18     119.3          12.2                9.1 +/-    4.30      24.3 +/-    4.30  0.070 / 0.150
G22     310.6          28.2                6.8 +/-    1.16      12.4 +/-    1.16  0.080 / 0.120
G25     75.5           16.9                7.0 +/-    1.00      16.7 +/-    1.00  0.050 / 0.070
G31     167.7          67.3               11.6 +/-    0.95      12.5 +/-    0.95  0.040 / 0.070
G32     36.9           52.1                8.3 +/-    0.33      10.3 +/-    0.33  0.110 / 0.330