PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/10-08:28:10
G01     73.6           32.3                5.8 +/-    1.34       9.7 +/-    1.34  0.040 / 0.030
G07     134.6          33.5                7.1 +/-    0.37      11.5 +/-    0.37  0.040 / 0.030
G11     57.5           35.7                5.7 +/-    1.15       8.9 +/-    1.15  0.090 / 0.250
G13     278.2          39.0                7.6 +/-    1.65      11.3 +/-    1.65  0.100 / 0.260
G15     305.4          14.6                0.8 +/-    2.37       1.9 +/-    2.37  0.090 / 0.080
G17     225.0          64.2                7.4 +/-    0.72       8.1 +/-    0.72  0.110 / 0.070
G19     220.2          40.5                6.0 +/-    1.93       8.7 +/-    1.93  0.050 / 0.050
G28     356.2          61.5                5.0 +/-    0.99       5.6 +/-    0.99  0.050 / 0.050
G30     130.8          68.4                7.6 +/-    0.52       8.1 +/-    0.52  0.040 / 0.080