PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-04:27:50
G01     248.3          34.0                9.4 +/-    1.91      15.3 +/-    1.91  0.130 / 0.200
G03     315.5          43.6                6.1 +/-    0.90       8.3 +/-    0.90  0.090 / 0.190
G11     233.6          11.6                8.6 +/-    4.10      23.0 +/-    4.10  0.100 / 0.090
G14     63.9           38.0                5.5 +/-    1.36       8.2 +/-    1.36  0.130 / 0.090
G16     164.1          18.9                8.4 +/-    1.42      19.0 +/-    1.42  0.030 / 0.050
G22     302.1          67.7                6.8 +/-    0.60       7.3 +/-    0.60  0.040 / 0.040
G23     287.6          19.3                6.6 +/-    2.02      14.9 +/-    2.02  0.030 / 0.040
G26     137.9          38.8                8.5 +/-    1.45      12.7 +/-    1.45  0.030 / 0.030
G31     39.8           58.4                6.4 +/-    0.84       7.4 +/-    0.84  0.100 / 0.190
G32     78.2           23.7                5.3 +/-    1.09      10.7 +/-    1.09  0.090 / 0.200