PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-15:43:00
G01     103.1          27.5               10.7 +/-    0.97      19.7 +/-    0.97  0.120 / 0.190
G07     112.6          55.4               12.7 +/-    0.29      15.1 +/-    0.29  0.170 / 0.210
G08     41.7           17.3               10.1 +/-    2.33      23.7 +/-    2.33  0.030 / 0.030
G11     83.3           42.7               11.7 +/-    1.14      16.3 +/-    1.14  0.030 / 0.020
G13     306.3          31.0               11.3 +/-    0.80      19.4 +/-    0.80  0.030 / 0.040
G17     207.9          40.9               12.9 +/-    1.06      18.5 +/-    1.06  0.030 / 0.040
G18     76.0           24.6               12.2 +/-    1.50      24.0 +/-    1.50  0.080 / 0.060
G19     210.6          14.4                2.6 +/-   15.94       6.5 +/-   15.94  0.050 / 0.080
G28     325.8          61.5               10.2 +/-    0.63      11.4 +/-    0.63  0.140 / 0.320
G30     42.1           79.6               12.6 +/-    0.57      12.8 +/-    0.57  0.170 / 0.330