PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/23-20:58:10
G02     10.9           69.6               11.1 +/-    0.70      11.8 +/-    0.70  0.060 / 0.090
G05     159.3          47.4               11.7 +/-    1.64      15.3 +/-    1.64  0.050 / 0.080
G06     47.6           25.9                9.2 +/-    0.83      17.7 +/-    0.83  0.040 / 0.060
G12     232.4          79.2               10.5 +/-    1.00      10.7 +/-    1.00  0.050 / 0.050
G19     90.2           16.1               10.8 +/-    1.68      26.1 +/-    1.68  0.110 / 0.150
G20     196.9          14.7               12.4 +/-    5.20      31.0 +/-    5.20  0.110 / 0.210
G24     218.5          12.4               12.2 +/-    2.30      32.3 +/-    2.30  0.030 / 0.030
G25     308.9          47.7               11.4 +/-    1.84      14.8 +/-    1.84  0.030 / 0.030
G29     298.4          19.8                9.7 +/-    2.66      21.4 +/-    2.66  0.190 / 0.550