PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-00:57:30
G01     101.7          28.2                5.6 +/-    1.32      10.2 +/-    1.32  0.040 / 0.040
G07     114.1          54.4                6.5 +/-    0.75       7.7 +/-    0.75  0.040 / 0.040
G08     41.9           17.8                4.8 +/-    1.50      11.1 +/-    1.50  0.160 / 0.160
G11     85.1           43.4                7.3 +/-    0.82      10.1 +/-    0.82  0.190 / 0.270
G13     305.8          31.0                6.4 +/-    1.64      11.0 +/-    1.64  0.080 / 0.100
G17     208.7          41.9                8.8 +/-    0.67      12.4 +/-    0.67  0.070 / 0.110
G19     210.6          18.1                7.4 +/-    1.30      17.1 +/-    1.30  0.110 / 0.140
G28     329.9          61.7                5.1 +/-    0.69       5.7 +/-    0.69  0.060 / 0.110