PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/26-23:27:50
G01     59.9           30.5                9.3 +/-    0.86      16.0 +/-    0.86  0.050 / 0.090
G07     142.5          22.4               12.7 +/-    1.50      26.3 +/-    1.50  0.040 / 0.140
G11     49.2           25.5                7.9 +/-    0.89      15.3 +/-    0.89  0.030 / 0.040
G13     262.8          35.0               12.3 +/-    1.41      19.5 +/-    1.41  0.030 / 0.040
G15     293.1          16.6                9.4 +/-    2.33      22.5 +/-    2.33  0.040 / 0.050
G17     253.6          73.2               10.7 +/-    0.74      11.1 +/-    0.74  0.030 / 0.050
G18     42.6           13.1                7.1 +/-    1.91      18.6 +/-    1.91  0.070 / 0.160
G19     233.1          50.7               12.2 +/-    1.20      15.3 +/-    1.20  0.080 / 0.170
G28     37.1           56.3                8.7 +/-    0.53      10.2 +/-    0.53  0.030 / 0.050
G30     143.3          49.2               12.2 +/-    1.03      15.6 +/-    1.03  0.040 / 0.060