PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-21:43:10
G01     119.3          17.3               13.7 +/-    1.71      32.2 +/-    1.71  0.040 / 0.060
G07     86.6           63.0               12.5 +/-    0.42      13.8 +/-    0.42  0.040 / 0.070
G08     44.6           30.3                8.6 +/-    0.50      15.0 +/-    0.50  0.110 / 0.420
G09     177.3          27.3               14.6 +/-    1.49      27.2 +/-    1.49  0.130 / 0.430
G11     105.4          40.2               13.3 +/-    0.69      19.3 +/-    0.69  0.040 / 0.040
G13     317.7          19.6               11.1 +/-    1.54      24.7 +/-    1.54  0.030 / 0.030
G17     200.4          25.6               13.9 +/-    1.95      26.8 +/-    1.95  0.100 / 0.300
G18     91.4           20.3               12.4 +/-    1.04      27.2 +/-    1.04  0.090 / 0.280
G28     286.2          54.8               12.2 +/-    0.41      14.5 +/-    0.41  0.030 / 0.050
G30     345.9          68.5               10.5 +/-    0.85      11.2 +/-    0.85  0.030 / 0.030