PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-20:27:50
G01     126.0          11.9               14.2 +/-    4.71      38.1 +/-    4.71  0.030 / 0.030
G07     67.7           66.5               11.9 +/-    0.53      12.8 +/-    0.53  0.030 / 0.030
G08     49.2           37.5               10.4 +/-    1.31      15.8 +/-    1.31  0.080 / 0.080
G09     178.5          36.2               13.1 +/-    0.57      20.3 +/-    0.57  0.140 / 0.090
G11     115.6          36.4               13.4 +/-    0.97      20.7 +/-    0.97  0.080 / 0.090
G13     320.6          12.9                3.5 +/-   19.78       9.1 +/-   19.78  0.090 / 0.080
G17     199.1          16.8               13.6 +/-    2.15      32.4 +/-    2.15  0.090 / 0.370
G18     100.1          17.0               12.9 +/-    2.52      30.5 +/-    2.52  0.150 / 0.430
G28     273.0          50.3               12.3 +/-    2.66      15.4 +/-    2.66  0.030 / 0.040
G30     334.6          61.8               11.5 +/-    0.55      12.9 +/-    0.55  0.040 / 0.030