PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/07-17:57:40
G01     47.7           23.5                9.2 +/-    1.74      18.7 +/-    1.74  0.040 / 0.050
G06     177.4          26.3               14.7 +/-    1.34      27.8 +/-    1.34  0.040 / 0.060
G11     43.9           12.9                9.2 +/-    2.36      24.0 +/-    2.36  0.120 / 0.290
G13     247.0          29.7               12.9 +/-    1.45      22.7 +/-    1.45  0.160 / 0.320
G15     280.7          15.4               10.5 +/-    2.07      25.8 +/-    2.07  0.110 / 0.160
G17     319.7          78.1               12.2 +/-    0.31      12.4 +/-    0.31  0.090 / 0.220
G19     250.3          62.7               12.5 +/-    0.64      13.9 +/-    0.64  0.050 / 0.040
G28     48.6           55.3               11.2 +/-    0.61      13.3 +/-    0.61  0.050 / 0.050
G30     149.8          35.6               13.4 +/-    0.90      21.1 +/-    0.90  0.030 / 0.050