PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/27-15:57:40
G01     285.8          40.9                7.7 +/-    1.49      11.0 +/-    1.49  0.040 / 0.070
G03     313.8          23.7                6.8 +/-    3.83      13.7 +/-    3.83  0.040 / 0.080
G10     122.7          25.9               12.6 +/-    1.18      24.1 +/-    1.18  0.100 / 0.120
G11     264.5          24.4               10.2 +/-    1.39      20.3 +/-    1.39  0.080 / 0.120
G14     27.1           57.7                7.5 +/-    0.78       8.7 +/-    0.78  0.020 / 0.020
G22     314.7          43.9                8.0 +/-    1.14      11.0 +/-    1.14  0.020 / 0.030
G25     63.5           19.1                8.8 +/-    0.86      19.7 +/-    0.86  0.050 / 0.060
G26     153.7          16.7               15.7 +/-    2.01      37.4 +/-    2.01  0.050 / 0.060
G31     98.6           79.6               11.3 +/-    0.60      11.5 +/-    0.60  0.130 / 0.200
G32     55.3           38.6                7.9 +/-    0.57      11.7 +/-    0.57  0.150 / 0.180