PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-09:27:30
G02     200.7          24.4                6.2 +/-    2.91      12.3 +/-    2.91  0.180 / 0.310
G06     166.7          58.5                7.3 +/-    0.67       8.4 +/-    0.67  0.150 / 0.260
G13     223.1          11.0                5.6 +/-    1.63      15.2 +/-    1.63  0.040 / 0.030
G17     25.2           57.4                4.9 +/-    0.94       5.6 +/-    0.94  0.050 / 0.040
G19     341.1          70.1                5.1 +/-    0.40       5.4 +/-    0.40  0.050 / 0.080
G24     308.0          30.8                5.2 +/-    0.98       9.0 +/-    0.98  0.060 / 0.080
G28     86.3           44.2                5.9 +/-    1.06       8.1 +/-    1.06  0.140 / 0.100
G30     158.4          13.6                5.2 +/-    1.95      13.5 +/-    1.95  0.130 / 0.100