PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/24-18:12:50
G01     125.8          11.9               12.2 +/-    2.96      32.5 +/-    2.96  0.060 / 0.070
G07     70.3           65.6               11.7 +/-    0.44      12.7 +/-    0.44  0.050 / 0.080
G08     49.6           38.3               10.2 +/-    0.73      15.2 +/-    0.73  0.030 / 0.050
G09     178.8          36.6               12.6 +/-    1.27      19.5 +/-    1.27  0.030 / 0.050
G11     115.9          36.5               13.1 +/-    1.24      20.2 +/-    1.24  0.030 / 0.040
G13     320.6          13.1                8.4 +/-    1.59      21.7 +/-    1.59  0.040 / 0.030
G17     199.4          16.0               15.0 +/-    2.37      36.3 +/-    2.37  0.140 / 0.370
G18     100.8          17.0               11.6 +/-    1.16      27.4 +/-    1.16  0.140 / 0.390
G28     272.4          49.8               11.2 +/-    1.22      14.1 +/-    1.22  0.090 / 0.330
G30     336.3          62.8               11.1 +/-    0.71      12.3 +/-    0.71  0.100 / 0.380