PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/28-18:42:50
G07     339.3          60.4               11.4 +/-    0.41      12.9 +/-    0.41  0.030 / 0.040
G08     99.7           50.9               12.9 +/-    0.96      16.1 +/-    0.96  0.030 / 0.040
G09     197.4          76.3               11.9 +/-    0.45      12.2 +/-    0.45  0.120 / 0.270
G11     145.5          13.1               18.8 +/-    3.03      48.8 +/-    3.03  0.190 / 0.360
G16     45.8           12.6                8.2 +/-    1.90      21.5 +/-    1.90  0.030 / 0.020
G23     155.3          44.4               13.3 +/-    1.00      18.1 +/-    1.00  0.040 / 0.030
G27     58.6           33.9               10.3 +/-    1.74      16.7 +/-    1.74  0.060 / 0.080
G28     234.8          24.4               15.4 +/-    2.17      30.6 +/-    2.17  0.070 / 0.090
G30     301.0          34.8                9.7 +/-    2.21      15.5 +/-    2.21  0.090 / 0.120