PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/08-00:57:50
G02     8.0            72.5               10.7 +/-    0.37      11.1 +/-    0.37  0.020 / 0.020
G05     159.1          41.9               14.4 +/-    0.57      20.4 +/-    0.57  0.020 / 0.020
G06     44.0           33.0                8.0 +/-    1.15      13.2 +/-    1.15  0.190 / 0.320
G12     290.0          77.9               11.0 +/-    0.43      11.2 +/-    0.43  0.200 / 0.190
G17     90.9           10.0               13.1 +/-    2.93      36.5 +/-    2.93  0.180 / 0.300
G19     81.3           23.9               11.2 +/-    1.04      22.5 +/-    1.04  0.210 / 0.290
G24     222.7          17.5               16.0 +/-    2.34      37.4 +/-    2.34  0.090 / 0.080
G25     315.5          35.0                9.5 +/-    0.82      15.0 +/-    0.82  0.080 / 0.090
G29     291.4          12.7               12.1 +/-    1.91      31.9 +/-    1.91  0.040 / 0.060