PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-23:58:00
G01     231.2          23.9                8.1 +/-    1.08      16.2 +/-    1.08  0.040 / 0.040
G03     306.9          59.2                6.8 +/-    0.87       7.7 +/-    0.87  0.040 / 0.030
G14     74.8           33.7                5.5 +/-    0.57       9.0 +/-    0.57  0.060 / 0.120
G16     151.4          35.7                9.1 +/-    1.05      14.2 +/-    1.05  0.050 / 0.140
G22     257.6          74.5                6.3 +/-    0.85       6.5 +/-    0.85  0.100 / 0.210
G23     300.2          31.0                6.8 +/-    0.96      11.7 +/-    0.96  0.090 / 0.220
G26     114.1          50.6                8.1 +/-    0.93      10.2 +/-    0.93  0.090 / 0.140
G31     42.7           40.1                4.2 +/-    1.14       6.1 +/-    1.14  0.080 / 0.130
G32     91.8           11.0                6.1 +/-    1.30      16.6 +/-    1.30  0.040 / 0.040