PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-14:28:00
G01     111.2          23.2               11.0 +/-   35.64      22.4 +/-   35.64  0.030 / 0.020
G07     99.7           61.4               13.4 +/-   39.68      15.0 +/-   39.68  0.030 / 0.030
G08     42.4           23.6                8.1 +/-   39.06      16.4 +/-   39.06  0.030 / 0.040
G09     174.7          16.2               12.2 +/-   39.84      29.5 +/-   39.84  0.030 / 0.040
G11     94.3           42.3               12.7 +/-   38.42      17.7 +/-   38.42  0.090 / 0.140
G13     312.6          26.0                9.7 +/-   38.08      18.5 +/-   38.08  0.100 / 0.150
G17     204.3          33.3               13.6 +/-   40.16      22.3 +/-   40.16  0.210 / 0.210
G18     84.7           23.5                6.5 +/-    3.04      13.2 +/-    3.04  0.090 / 0.210
G28     309.3          60.1               11.3 +/-   38.16      12.8 +/-   38.16  0.110 / 0.150
G30     4.7            75.2               -1.2 +/-   19.33      -1.2 +/-   19.33  0.100 / 0.120