PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/04-19:57:30
G02     200.0          18.0               15.6 +/-    0.91      36.1 +/-    0.91  0.080 / 0.160
G06     170.5          51.9               15.7 +/-    0.93      19.3 +/-    0.93  0.140 / 0.180
G13     229.3          14.9               15.9 +/-    1.60      39.8 +/-    1.60  0.040 / 0.040
G17     14.7           63.6               12.6 +/-    1.33      13.9 +/-    1.33  0.030 / 0.040
G19     307.0          70.7               13.8 +/-    0.88      14.6 +/-    0.88  0.090 / 0.190
G24     311.5          28.1               12.3 +/-    1.16      22.4 +/-    1.16  0.070 / 0.190
G28     85.0           41.2               14.7 +/-    0.48      21.0 +/-    0.48  0.080 / 0.080
G30     156.7          17.0               17.3 +/-    2.16      41.0 +/-    2.16  0.040 / 0.090