PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/29-00:12:30
G02     334.1          79.9                7.3 +/-    0.71       7.4 +/-    0.71  0.170 / 0.190
G05     164.6          31.2               13.1 +/-    0.49      22.3 +/-    0.49  0.150 / 0.140
G06     39.8           45.6                6.3 +/-    0.67       8.4 +/-    0.67  0.240 / 0.270
G12     316.1          65.2                7.6 +/-    0.98       8.2 +/-    0.98  0.180 / 0.230
G17     83.5           12.6                9.0 +/-    2.60      23.6 +/-    2.60  0.040 / 0.030
G19     72.1           28.5                7.8 +/-    1.04      14.2 +/-    1.04  0.040 / 0.040
G24     229.7          24.4               11.4 +/-    2.41      22.6 +/-    2.41  0.090 / 0.080
G25     317.3          26.6                8.7 +/-    1.98      16.4 +/-    1.98  0.070 / 0.070