PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/07-08:13:10
G01     85.0           32.7                4.8 +/-    0.55       8.0 +/-    0.55  0.060 / 0.060
G07     129.3          40.5                7.0 +/-    0.41      10.1 +/-    0.41  0.050 / 0.050
G11     63.9           37.0                3.0 +/-    0.65       4.6 +/-    0.65  0.050 / 0.070
G13     291.3          36.1                5.4 +/-    0.98       8.4 +/-    0.98  0.050 / 0.050
G15     312.4          11.9                2.5 +/-    2.44       6.6 +/-    2.44  0.040 / 0.050
G17     218.1          59.8                8.2 +/-    0.64       9.3 +/-    0.64  0.040 / 0.050
G19     216.7          32.5                7.2 +/-    2.48      11.9 +/-    2.48  0.090 / 0.240
G28     358.9          61.2                3.5 +/-    0.54       3.9 +/-    0.54  0.080 / 0.230
G30     115.5          72.5                6.4 +/-    0.95       6.7 +/-    0.95  0.070 / 0.090