PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/05-12:42:50
G01     78.4           33.1                6.5 +/-    0.88      10.7 +/-    0.88  0.030 / 0.030
G07     133.2          34.4                7.1 +/-    1.14      11.3 +/-    1.14  0.030 / 0.040
G11     57.8           32.7                5.1 +/-    1.29       8.4 +/-    1.29  0.040 / 0.070
G13     285.4          36.7                7.3 +/-    1.20      11.3 +/-    1.20  0.040 / 0.070
G15     309.7          12.8                3.0 +/-    1.30       8.0 +/-    1.30  0.110 / 0.250
G17     224.1          65.8                8.6 +/-    1.14       9.3 +/-    1.14  0.120 / 0.230
G19     219.7          37.9                9.6 +/-    1.32      14.5 +/-    1.32  0.040 / 0.040
G28     8.3            60.4                5.4 +/-    0.57       6.1 +/-    0.57  0.040 / 0.040
G30     125.0          69.8                6.5 +/-    0.68       6.8 +/-    0.68  0.060 / 0.090