PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/11-01:12:30
G10     252.3          28.1               14.2 +/-    1.99      25.9 +/-    1.99  0.040 / 0.040
G13     51.7           28.7               10.1 +/-    1.53      18.2 +/-    1.53  0.030 / 0.040
G15     85.5           58.2               12.8 +/-    0.71      14.8 +/-    0.71  0.080 / 0.110
G16     292.3          15.7                9.1 +/-    1.22      22.2 +/-    1.22  0.090 / 0.140
G20     264.8          41.7               12.2 +/-    2.91      17.2 +/-    2.91  0.090 / 0.240
G21     335.0          61.0               11.2 +/-    0.51      12.7 +/-    0.51  0.120 / 0.230
G26     264.4          14.8               13.1 +/-    1.53      32.7 +/-    1.53  0.030 / 0.030
G29     165.8          48.7               13.8 +/-    0.69      17.7 +/-    0.69  0.030 / 0.020