PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/06-04:42:30
G01     68.9           31.6                4.8 +/-    0.97       8.1 +/-    0.97  0.030 / 0.030
G07     136.7          31.8                7.5 +/-    1.61      12.7 +/-    1.61  0.030 / 0.030
G11     55.8           35.1                6.2 +/-    1.29       9.8 +/-    1.29  0.110 / 0.230
G13     273.5          38.9                6.9 +/-    0.94      10.2 +/-    0.94  0.120 / 0.290
G15     300.3          16.5                3.3 +/-    2.19       8.0 +/-    2.19  0.050 / 0.060
G17     230.5          69.5                7.1 +/-    0.99       7.5 +/-    0.99  0.060 / 0.060
G19     222.6          44.0                8.4 +/-    1.91      11.5 +/-    1.91  0.030 / 0.030
G28     0.4            61.4                5.5 +/-    0.52       6.2 +/-    0.52  0.040 / 0.030
G30     135.5          66.8                8.1 +/-    0.69       8.8 +/-    0.69  0.110 / 0.120