PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/12-02:27:40
G02     203.2          39.0                6.9 +/-    1.61      10.2 +/-    1.61  0.110 / 0.120
G06     159.2          70.9                6.6 +/-    0.42       7.0 +/-    0.42  0.090 / 0.120
G12     308.7          16.2                3.5 +/-    3.60       8.5 +/-    3.60  0.170 / 0.240
G17     35.9           49.6                3.8 +/-    2.77       4.8 +/-    2.77  0.250 / 0.250
G19     6.4            63.8                3.4 +/-    0.55       3.7 +/-    0.55  0.030 / 0.030
G24     295.8          38.8                2.6 +/-    3.38       3.9 +/-    3.38  0.030 / 0.030
G28     105.2          29.0                5.4 +/-    1.30       9.6 +/-    1.30  0.050 / 0.050