PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/13-13:43:10
G01     41.4           17.0                6.8 +/-    2.89      16.1 +/-    2.89  0.030 / 0.020
G06     174.2          37.1                7.4 +/-    1.06      11.2 +/-    1.06  0.020 / 0.030
G13     238.2          24.0                7.0 +/-    2.19      13.9 +/-    2.19  0.280 / 0.380
G15     273.3          12.8                4.5 +/-    1.55      11.7 +/-    1.55  0.180 / 0.280
G17     343.7          74.1                5.8 +/-    0.59       6.0 +/-    0.59  0.090 / 0.100
G19     273.0          69.5                5.4 +/-    0.63       5.7 +/-    0.63  0.060 / 0.080
G24     317.3          16.6                4.4 +/-    1.67      10.4 +/-    1.67  0.040 / 0.040
G28     61.3           52.6                6.4 +/-    0.73       7.8 +/-    0.73  0.030 / 0.040
G30     154.0          29.9                7.4 +/-    0.98      13.0 +/-    0.98  0.100 / 0.270