PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-15:42:50
G01     88.1           32.3               14.7 +/-    1.53      24.6 +/-    1.53  0.040 / 0.040
G07     127.2          44.1               14.3 +/-    0.98      19.5 +/-    0.98  0.030 / 0.030
G11     66.4           38.9               12.6 +/-    0.59      18.6 +/-    0.59  0.090 / 0.130
G13     292.4          36.6               11.4 +/-    1.19      17.5 +/-    1.19  0.080 / 0.130
G17     216.0          54.7               14.3 +/-    1.30      17.0 +/-    1.30  0.050 / 0.090
G18     61.8           23.4               13.3 +/-    0.72      26.9 +/-    0.72  0.050 / 0.100
G19     215.7          26.2               12.3 +/-    3.07      23.4 +/-    3.07  0.040 / 0.070
G28     352.5          61.6               11.5 +/-    1.03      12.9 +/-    1.03  0.050 / 0.070
G30     109.0          75.3               13.2 +/-    0.98      13.6 +/-    0.98  0.050 / 0.060