PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-20:12:50
G01     125.5          12.3               12.9 +/-    2.71      34.2 +/-    2.71  0.030 / 0.030
G07     69.6           66.1               10.9 +/-    0.47      11.8 +/-    0.47  0.030 / 0.040
G08     48.8           37.1                8.3 +/-    1.03      12.7 +/-    1.03  0.110 / 0.120
G09     178.5          35.6               12.5 +/-    0.68      19.7 +/-    0.68  0.120 / 0.090
G11     115.0          36.7               11.0 +/-    0.76      17.0 +/-    0.76  0.110 / 0.400
G13     320.5          13.5                7.9 +/-    3.76      20.3 +/-    3.76  0.090 / 0.390
G17     199.2          17.4               14.9 +/-    1.30      34.9 +/-    1.30  0.130 / 0.110
G18     99.6           17.2               10.9 +/-    2.20      25.7 +/-    2.20  0.130 / 0.130
G28     273.8          50.6               12.3 +/-    3.53      15.4 +/-    3.53  0.040 / 0.030
G30     335.5          62.5               10.2 +/-    0.52      11.3 +/-    0.52  0.040 / 0.030