PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-09:12:50
G01     76.6           32.4                5.0 +/-    1.69       8.4 +/-    1.69  0.050 / 0.080
G07     133.1          35.4                6.4 +/-    1.17      10.0 +/-    1.17  0.040 / 0.080
G11     59.3           36.9                4.0 +/-    1.20       6.1 +/-    1.20  0.070 / 0.080
G13     281.3          39.0                9.1 +/-    2.93      13.5 +/-    2.93  0.070 / 0.110
G15     307.9          13.6                3.0 +/-    2.72       7.6 +/-    2.72  0.090 / 0.260
G17     222.2          61.4                7.5 +/-    1.41       8.4 +/-    1.41  0.220 / 0.230
G18     53.6           20.8                3.6 +/-    3.82       7.7 +/-    3.82  0.110 / 0.130
G19     218.7          38.2                7.9 +/-    1.27      11.9 +/-    1.27  0.140 / 0.110
G28     352.0          61.6                4.9 +/-    0.95       5.5 +/-    0.95  0.040 / 0.040
G30     127.1          70.2                6.9 +/-    0.64       7.3 +/-    0.64  0.040 / 0.020