PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-18:27:50
G01     104.9          26.0               10.9 +/-    1.08      20.9 +/-    1.08  0.090 / 0.060
G07     112.7          50.4               12.1 +/-    1.07      15.1 +/-    1.07  0.080 / 0.090
G08     41.7           18.7                7.9 +/-    1.11      18.0 +/-    1.11  0.040 / 0.100
G09     175.3          13.6               14.3 +/-    0.95      36.8 +/-    0.95  0.040 / 0.090
G11     85.1           43.0               11.5 +/-    0.57      16.0 +/-    0.57  0.110 / 0.310
G13     307.9          30.4               10.8 +/-    1.51      18.8 +/-    1.51  0.110 / 0.270
G17     205.6          39.5               14.0 +/-    1.21      20.5 +/-    1.21  0.090 / 0.140
G18     76.6           23.9                9.3 +/-    0.71      18.7 +/-    0.71  0.070 / 0.170
G28     311.6          59.5                9.9 +/-    0.92      11.3 +/-    0.92  0.030 / 0.060
G30     42.7           78.9               10.8 +/-    0.54      11.0 +/-    0.54  0.030 / 0.050