PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/25-05:12:40
G01     77.4           32.1                4.5 +/-    0.96       7.5 +/-    0.96  0.030 / 0.030
G07     132.1          37.9                7.2 +/-    0.66      10.8 +/-    0.66  0.030 / 0.030
G11     61.8           39.1                5.2 +/-    0.72       7.6 +/-    0.72  0.090 / 0.240
G13     282.8          39.1               -1.2 +/-    5.37      -1.7 +/-    5.37  0.080 / 0.170
G15     306.8          14.6                0.4 +/-    2.38       1.0 +/-    2.38  0.050 / 0.060
G17     220.6          62.5                6.8 +/-    1.16       7.6 +/-    1.16  0.040 / 0.050
G19     217.8          37.4                6.6 +/-    1.13      10.0 +/-    1.13  0.050 / 0.040
G28     347.1          61.5                3.8 +/-    0.50       4.2 +/-    0.50  0.040 / 0.030
G30     124.1          73.2                6.3 +/-    0.71       6.5 +/-    0.71  0.060 / 0.070