PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-15:43:00
G07     37.2           69.8               10.5 +/-    1.06      11.1 +/-    1.06  0.040 / 0.070
G08     55.2           44.2                8.8 +/-    0.68      12.0 +/-    0.68  0.050 / 0.050
G09     178.3          40.6               13.2 +/-    1.77      19.1 +/-    1.77  0.030 / 0.040
G11     123.5          32.4               12.0 +/-    1.69      20.1 +/-    1.69  0.030 / 0.040
G18     108.2          14.3               11.2 +/-    1.23      28.4 +/-    1.23  0.080 / 0.130
G27     37.9           10.9                9.7 +/-    2.21      26.6 +/-    2.21  0.080 / 0.120
G28     269.3          50.3               10.9 +/-    0.79      13.7 +/-    0.79  0.070 / 0.170
G30     328.0          56.8                9.3 +/-    1.03      10.9 +/-    1.03  0.040 / 0.060