PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/14-07:42:40
G01     90.1           30.7                4.2 +/-    0.56       7.2 +/-    0.56  0.030 / 0.040
G07     123.8          45.9                6.8 +/-    1.41       9.0 +/-    1.41  0.030 / 0.030
G11     72.2           42.8                4.6 +/-    0.64       6.4 +/-    0.64  0.070 / 0.110
G13     295.5          36.8                4.9 +/-    0.66       7.6 +/-    0.66  0.080 / 0.100
G17     212.1          50.7                7.4 +/-    0.97       9.2 +/-    0.97  0.050 / 0.070
G19     212.6          27.6                5.6 +/-    2.23      10.3 +/-    2.23  0.060 / 0.060
G28     328.9          60.7                3.4 +/-    1.25       3.8 +/-    1.25  0.040 / 0.060
G30     90.2           79.7                3.9 +/-    0.78       4.0 +/-    0.78  0.050 / 0.060