PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/22-23:57:50
G01     307.7          32.6               10.0 +/-    1.30      16.7 +/-    1.30  0.100 / 0.170
G10     104.9          41.5               11.1 +/-    0.54      15.7 +/-    0.54  0.100 / 0.170
G11     282.0          28.9               10.1 +/-    1.23      18.2 +/-    1.23  0.030 / 0.040
G14     357.9          66.9                9.7 +/-    0.37      10.5 +/-    0.37  0.030 / 0.040
G18     116.8          14.5                9.6 +/-    0.94      24.1 +/-    0.94  0.080 / 0.240
G22     309.0          24.2                8.4 +/-    1.11      16.6 +/-    1.11  0.090 / 0.280
G25     81.3           16.1                8.1 +/-    2.19      19.7 +/-    2.19  0.060 / 0.100
G31     174.7          60.6               12.6 +/-    0.88      14.2 +/-    0.88  0.070 / 0.090
G32     31.8           55.3                8.7 +/-    0.98      10.4 +/-    0.98  0.020 / 0.040