PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/27-21:12:50
G01     98.6           28.9               13.5 +/-    1.01      24.2 +/-    1.01  0.040 / 0.050
G07     119.1          46.7               13.9 +/-    1.06      18.2 +/-    1.06  0.030 / 0.060
G08     41.5           12.6               10.0 +/-    2.06      26.3 +/-    2.06  0.060 / 0.160
G11     76.3           41.9               13.0 +/-    1.62      18.3 +/-    1.62  0.060 / 0.120
G13     302.4          33.7               12.3 +/-    1.59      20.0 +/-    1.59  0.050 / 0.050
G17     208.4          47.1               17.5 +/-    0.85      22.9 +/-    0.85  0.040 / 0.050
G18     69.0           23.7               11.5 +/-    1.57      23.3 +/-    1.57  0.150 / 0.260
G19     211.0          19.9               17.3 +/-    3.73      38.1 +/-    3.73  0.100 / 0.170
G28     325.0          61.0               12.7 +/-    0.86      14.3 +/-    0.86  0.030 / 0.020
G30     71.4           79.4               14.5 +/-    0.63      14.7 +/-    0.63  0.030 / 0.030