PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/14-16:57:50
G01     281.5          41.3                8.2 +/-    1.24      11.6 +/-    1.24  0.040 / 0.070
G03     314.6          25.6                7.8 +/-    2.79      15.0 +/-    2.79  0.050 / 0.070
G10     124.9          23.5                9.7 +/-    1.60      19.7 +/-    1.60  0.020 / 0.020
G11     260.7          23.5                9.7 +/-    2.01      19.7 +/-    2.01  0.030 / 0.020
G14     32.0           55.6                7.0 +/-    0.63       8.3 +/-    0.63  0.050 / 0.120
G22     314.7          46.1                6.5 +/-    1.02       8.7 +/-    1.02  0.050 / 0.090
G25     60.3           18.7                7.7 +/-    0.70      17.6 +/-    0.70  0.040 / 0.080
G26     152.2          19.0               11.1 +/-    1.20      25.0 +/-    1.20  0.040 / 0.060
G31     82.0           79.0                9.2 +/-    0.30       9.4 +/-    0.30  0.060 / 0.090
G32     57.9           36.8                6.8 +/-    0.38      10.5 +/-    0.38  0.070 / 0.080