PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/17-19:28:10
G07     339.4          60.4               11.2 +/-    0.36      12.7 +/-    0.36  0.030 / 0.040
G08     98.5           51.0               11.8 +/-    0.87      14.7 +/-    0.87  0.040 / 0.050
G09     195.7          75.7               12.3 +/-    0.71      12.6 +/-    0.71  0.040 / 0.030
G11     145.2          13.4               15.7 +/-    2.54      40.6 +/-    2.54  0.030 / 0.040
G16     45.9           13.1                5.8 +/-    2.69      15.0 +/-    2.69  0.070 / 0.080
G23     155.5          44.2               12.5 +/-    0.69      17.1 +/-    0.69  0.060 / 0.080
G27     58.2           33.8                9.5 +/-    2.01      15.4 +/-    2.01  0.040 / 0.050
G28     235.1          24.9               14.9 +/-    2.72      29.3 +/-    2.72  0.040 / 0.040
G30     301.2          34.8                9.6 +/-    1.76      15.3 +/-    1.76  0.130 / 0.240