PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/10-17:28:10
G07     325.2          55.9               10.7 +/-    0.42      12.6 +/-    0.42  0.160 / 0.380
G08     115.0          46.9               12.9 +/-    0.47      16.9 +/-    0.47  0.250 / 0.310
G09     250.0          82.7               12.3 +/-    0.78      12.4 +/-    0.78  0.030 / 0.040
G16     43.4           19.8                8.4 +/-    2.30      18.5 +/-    2.30  0.040 / 0.050
G23     150.8          54.2               12.1 +/-    0.57      14.5 +/-    0.57  0.110 / 0.110
G27     69.5           37.0               10.6 +/-    1.16      16.2 +/-    1.16  0.160 / 0.100
G28     228.5          16.3               13.2 +/-    2.17      31.8 +/-    2.17  0.030 / 0.020
G30     293.7          29.0                9.8 +/-    1.61      17.6 +/-    1.61  0.040 / 0.020