PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-07:42:50
G01     84.0           32.8                5.3 +/-    0.82       8.8 +/-    0.82  0.040 / 0.070
G07     129.9          40.0                8.2 +/-    0.71      12.0 +/-    0.71  0.040 / 0.060
G11     63.2           36.7                3.6 +/-    1.24       5.5 +/-    1.24  0.040 / 0.050
G13     290.3          36.3                4.2 +/-    0.50       6.5 +/-    0.50  0.040 / 0.040
G15     311.7          12.3                2.3 +/-    2.47       6.1 +/-    2.47  0.050 / 0.070
G17     218.9          60.4                7.0 +/-    0.38       8.0 +/-    0.38  0.050 / 0.060
G19     217.1          33.2                7.3 +/-    2.82      12.1 +/-    2.82  0.110 / 0.250
G28     0.4            61.1                3.8 +/-    0.98       4.3 +/-    0.98  0.090 / 0.290
G30     117.7          71.6                5.9 +/-    0.80       6.2 +/-    0.80  0.050 / 0.100