PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/25-18:57:40
G07     341.3          60.9               12.5 +/-    0.52      14.1 +/-    0.52  0.040 / 0.040
G08     97.4           51.2               14.1 +/-    0.84      17.5 +/-    0.84  0.050 / 0.040
G09     194.6          75.0               14.9 +/-    0.76      15.3 +/-    0.76  0.170 / 0.320
G11     144.7          13.9               15.7 +/-    1.31      40.0 +/-    1.31  0.090 / 0.260
G16     46.2           11.7                8.6 +/-    2.57      23.2 +/-    2.57  0.040 / 0.030
G23     155.7          43.1               14.4 +/-    0.92      20.0 +/-    0.92  0.050 / 0.030
G27     57.3           33.3               11.3 +/-    1.03      18.4 +/-    1.03  0.060 / 0.080
G28     235.7          25.4               15.9 +/-    2.58      30.8 +/-    2.58  0.070 / 0.090
G30     302.0          35.5               12.1 +/-    1.92      19.1 +/-    1.92  0.080 / 0.090