PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/03-21:13:10
G02     199.9          20.0               15.3 +/-    0.76      33.6 +/-    0.76  0.040 / 0.080
G06     173.3          50.7               12.6 +/-    1.30      15.8 +/-    1.30  0.060 / 0.080
G13     227.0          14.0               15.2 +/-    2.58      38.7 +/-    2.58  0.120 / 0.280
G17     21.1           60.4               11.0 +/-    0.81      12.5 +/-    0.81  0.080 / 0.240
G19     320.1          71.5               10.4 +/-    0.71      10.9 +/-    0.71  0.040 / 0.030
G24     310.0          29.5               10.1 +/-    1.22      17.8 +/-    1.22  0.040 / 0.040
G28     83.2           44.0               11.6 +/-    0.62      15.9 +/-    0.62  0.080 / 0.160
G30     156.3          13.8               15.4 +/-    1.76      39.4 +/-    1.76  0.070 / 0.150