PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-19:58:10
G02     326.0          79.9               13.2 +/-    0.40      13.4 +/-    0.40  0.090 / 0.090
G05     165.1          31.8               17.3 +/-    2.28      29.2 +/-    2.28  0.060 / 0.080
G06     41.6           40.3               11.6 +/-    1.38      16.8 +/-    1.38  0.220 / 0.240
G12     313.0          72.7               12.7 +/-    0.81      13.2 +/-    0.81  0.270 / 0.260
G17     84.6           12.7               11.4 +/-    1.80      30.0 +/-    1.80  0.030 / 0.060
G19     71.7           30.7               12.5 +/-    1.31      21.6 +/-    1.31  0.050 / 0.050
G24     228.6          23.7               14.8 +/-    2.58      29.8 +/-    2.58  0.120 / 0.150
G25     317.4          27.4               12.6 +/-    1.20      23.4 +/-    1.20  0.090 / 0.170