PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/22-19:42:30
G07     316.0          50.7               10.9 +/-    0.99      13.7 +/-    0.99  0.040 / 0.080
G08     123.8          45.9               14.5 +/-    0.95      19.3 +/-    0.95  0.050 / 0.080
G09     257.1          82.6               11.5 +/-    1.02      11.6 +/-    1.02  0.030 / 0.060
G16     43.4           16.7                9.5 +/-    1.27      22.7 +/-    1.27  0.030 / 0.060
G23     149.1          51.7               12.3 +/-    0.99      15.2 +/-    0.99  0.040 / 0.050
G27     67.8           36.0               10.5 +/-    0.41      16.4 +/-    0.41  0.050 / 0.070
G28     228.9          20.1               14.6 +/-    1.84      32.0 +/-    1.84  0.200 / 0.350
G30     293.7          29.5               10.4 +/-    1.39      18.4 +/-    1.39  0.090 / 0.240