PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/28-04:58:00
G03     255.1          70.2                6.5 +/-    0.76       6.9 +/-    0.76  0.120 / 0.220
G09     300.4          14.9                2.5 +/-    1.87       6.1 +/-    1.87  0.110 / 0.280
G14     94.7           19.0                4.0 +/-    1.02       9.0 +/-    1.02  0.040 / 0.060
G16     132.1          54.8                6.4 +/-    0.66       7.7 +/-    0.66  0.030 / 0.060
G22     202.4          61.0                6.3 +/-    0.51       7.1 +/-    0.51  0.050 / 0.070
G23     317.5          47.7                3.1 +/-    0.91       4.0 +/-    0.91  0.050 / 0.070
G26     76.7           53.0                4.8 +/-    1.26       5.8 +/-    1.26  0.050 / 0.060
G31     50.5           21.7                1.3 +/-    2.00       2.8 +/-    2.00  0.040 / 0.060