PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/14-15:28:00
G01     47.0           22.9                8.1 +/-    2.31      16.6 +/-    2.31  0.040 / 0.050
G06     176.5          27.8               11.2 +/-    2.27      20.6 +/-    2.27  0.030 / 0.050
G11     43.9           12.9                6.7 +/-    2.22      17.6 +/-    2.22  0.080 / 0.260
G13     246.2          29.4               10.5 +/-    1.23      18.7 +/-    1.23  0.120 / 0.290
G15     280.6          15.1                8.3 +/-    2.74      20.7 +/-    2.74  0.040 / 0.030
G17     313.9          77.8               10.4 +/-    0.42      10.6 +/-    0.42  0.030 / 0.020
G19     251.9          63.7               10.4 +/-    0.56      11.4 +/-    0.56  0.040 / 0.040
G28     48.7           55.5               10.4 +/-    0.45      12.4 +/-    0.45  0.040 / 0.030
G30     150.7          37.0                8.9 +/-    0.77      13.6 +/-    0.77  0.100 / 0.140