PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-01:42:30
G10     308.9          55.7               12.4 +/-    1.19      14.6 +/-    1.19  0.060 / 0.080
G14     211.7          16.9               19.1 +/-    1.65      45.3 +/-    1.65  0.050 / 0.070
G15     45.5           21.9                8.1 +/-    2.77      16.9 +/-    2.77  0.070 / 0.060
G20     6.6            64.6               13.1 +/-    0.50      14.3 +/-    0.50  0.080 / 0.060
G21     112.4          70.3               15.2 +/-    0.59      16.1 +/-    0.59  0.040 / 0.040
G24     91.2           28.7               12.3 +/-    0.96      22.2 +/-    0.96  0.030 / 0.050
G27     294.2          36.3               11.7 +/-    1.43      18.2 +/-    1.43  0.150 / 0.310
G32     213.3          36.7               17.4 +/-    1.77      26.8 +/-    1.77  0.100 / 0.250