PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-05:27:50
G01     272.3          41.1                7.8 +/-    1.85      11.1 +/-    1.85  0.060 / 0.060
G03     315.2          26.0                6.6 +/-    1.05      12.6 +/-    1.05  0.050 / 0.070
G10     128.9          19.0                6.4 +/-    2.47      14.4 +/-    2.47  0.060 / 0.040
G11     249.2          21.7               10.3 +/-    3.20      21.7 +/-    3.20  0.060 / 0.040
G14     43.7           49.5                6.1 +/-    0.68       7.7 +/-    0.68  0.060 / 0.060
G22     314.4          50.7                7.3 +/-    0.85       9.2 +/-    0.85  0.050 / 0.080
G25     49.9           14.9                5.5 +/-    3.78      13.6 +/-    3.78  0.120 / 0.170
G26     150.5          22.9                8.2 +/-    1.50      16.8 +/-    1.50  0.100 / 0.120
G31     59.5           76.2                8.1 +/-    0.35       8.3 +/-    0.35  0.030 / 0.050
G32     62.0           34.7                7.1 +/-    0.82      11.3 +/-    0.82  0.030 / 0.060