PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-19:58:10
G02     16.8           67.0               11.4 +/-    0.46      12.3 +/-    0.46  0.040 / 0.030
G05     158.8          49.3               14.6 +/-    0.55      18.6 +/-    0.55  0.040 / 0.040
G06     48.6           24.3               10.0 +/-    2.24      19.9 +/-    2.24  0.020 / 0.020
G12     223.7          77.7               11.2 +/-    0.93      11.4 +/-    0.93  0.030 / 0.020
G19     92.2           14.7               11.8 +/-    1.50      29.5 +/-    1.50  0.090 / 0.070
G20     197.1          16.8               18.8 +/-    3.16      44.7 +/-    3.16  0.080 / 0.080
G24     216.8          10.8               16.7 +/-    6.54      45.8 +/-    6.54  0.330 / 0.550
G25     306.5          50.1               13.5 +/-    1.90      17.0 +/-    1.90  0.330 / 0.540
G29     300.5          21.9               13.3 +/-    1.70      27.9 +/-    1.70  0.070 / 0.140