PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/17-12:27:30
G02     353.2          77.5                5.4 +/-    0.60       5.5 +/-    0.60  0.040 / 0.090
G05     165.2          33.8                9.4 +/-    2.15      15.3 +/-    2.15  0.080 / 0.090
G06     40.9           43.0                3.9 +/-    0.56       5.4 +/-    0.56  0.130 / 0.220
G12     310.0          70.8                6.4 +/-    1.05       6.8 +/-    1.05  0.130 / 0.180
G19     77.3           25.3                5.7 +/-    0.80      11.1 +/-    0.80  0.030 / 0.040
G24     228.9          22.3                7.6 +/-    1.83      15.9 +/-    1.83  0.030 / 0.040
G25     317.0          31.0                6.7 +/-    1.91      11.5 +/-    1.91  0.040 / 0.050
G29     289.3          13.9                5.7 +/-    2.80      14.7 +/-    2.80  0.040 / 0.050