PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/08-13:57:50
G02     30.5           58.1                6.4 +/-    0.60       7.4 +/-    0.60  0.030 / 0.040
G05     149.0          57.6                9.6 +/-    0.90      11.2 +/-    0.90  0.030 / 0.040
G06     50.8           22.0                2.9 +/-    0.37       6.0 +/-    0.37  0.090 / 0.190
G12     210.7          72.8                4.9 +/-    0.57       5.1 +/-    0.57  0.080 / 0.180
G19     97.5           11.0                9.5 +/-    1.50      25.9 +/-    1.50  0.030 / 0.040
G20     198.5          21.2                8.2 +/-    1.61      17.6 +/-    1.61  0.030 / 0.030
G25     301.5          51.7                5.6 +/-    0.67       6.9 +/-    0.67  0.040 / 0.060
G29     307.3          30.1                4.4 +/-    1.06       7.7 +/-    1.06  0.040 / 0.060