PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-06:12:50
G07     330.6          57.3                5.5 +/-    0.64       6.4 +/-    0.64  0.120 / 0.100
G08     99.7           50.6                8.2 +/-    0.79      10.2 +/-    0.79  0.080 / 0.120
G09     178.4          71.6                7.7 +/-    0.36       8.0 +/-    0.36  0.040 / 0.040
G11     146.1          12.2                9.4 +/-    1.82      24.9 +/-    1.82  0.040 / 0.040
G23     155.3          46.1                8.3 +/-    1.39      11.0 +/-    1.39  0.060 / 0.070
G27     59.0           34.0                5.7 +/-    1.51       9.2 +/-    1.51  0.060 / 0.090
G28     234.9          26.3                8.5 +/-    2.90      16.1 +/-    2.90  0.020 / 0.020
G30     298.9          31.9                5.5 +/-    2.25       9.2 +/-    2.25  0.030 / 0.030