PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/16-07:58:10
G01     76.6           32.3                5.2 +/-    1.27       8.6 +/-    1.27  0.040 / 0.030
G07     132.9          36.0                7.6 +/-    0.68      11.8 +/-    0.68  0.040 / 0.030
G11     59.8           37.5                4.8 +/-    0.56       7.3 +/-    0.56  0.050 / 0.090
G13     281.5          39.0                6.0 +/-    1.19       8.8 +/-    1.19  0.040 / 0.090
G15     307.3          14.0                1.9 +/-    1.95       4.9 +/-    1.95  0.060 / 0.120
G17     221.9          62.0                7.7 +/-    1.26       8.6 +/-    1.26  0.060 / 0.120
G19     218.6          38.2                6.0 +/-    1.31       9.0 +/-    1.31  0.050 / 0.090
G28     350.9          61.5                4.3 +/-    0.51       4.8 +/-    0.51  0.040 / 0.070
G30     126.6          71.0                7.9 +/-    0.64       8.3 +/-    0.64  0.040 / 0.050