PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-15:57:40
G02     56.3           36.2                6.0 +/-    0.82       9.3 +/-    0.82  0.080 / 0.090
G05     66.8           67.2                7.7 +/-    0.80       8.3 +/-    0.80  0.090 / 0.080
G12     183.7          33.7                8.9 +/-    1.22      14.5 +/-    1.22  0.040 / 0.020
G13     129.5          13.7               10.0 +/-    2.52      25.6 +/-    2.52  0.030 / 0.030
G21     269.9          16.5                7.2 +/-    2.50      17.2 +/-    2.50  0.080 / 0.070
G25     234.4          52.9                8.4 +/-    3.16      10.3 +/-    3.16  0.140 / 0.060
G29     326.9          52.2                7.5 +/-    1.37       9.3 +/-    1.37  0.190 / 0.370