PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/11-05:28:00
G01     41.9           17.5                1.8 +/-    0.91       4.2 +/-    0.91  0.060 / 0.110
G06     174.8          34.4                7.5 +/-    1.45      12.1 +/-    1.45  0.060 / 0.100
G11     44.0           11.3                2.5 +/-    1.79       6.8 +/-    1.79  0.090 / 0.210
G13     239.7          25.6                6.5 +/-    1.63      12.5 +/-    1.63  0.070 / 0.190
G15     271.6          13.9                4.3 +/-    1.05      11.0 +/-    1.05  0.170 / 0.410
G17     354.8          73.6                6.1 +/-    0.87       6.4 +/-    0.87  0.170 / 0.420
G19     267.9          69.0                5.9 +/-    0.71       6.3 +/-    0.71  0.150 / 0.280
G24     317.9          14.4                1.4 +/-    0.73       3.5 +/-    0.73  0.180 / 0.330
G28     54.8           55.0                4.4 +/-    0.41       5.3 +/-    0.41  0.040 / 0.060
G30     154.7          35.8                8.8 +/-    1.34      13.7 +/-    1.34  0.030 / 0.050