PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-22:13:10
G01     92.4           30.9               12.7 +/-    1.05      21.8 +/-    1.05  0.040 / 0.050
G07     124.3          42.5               13.1 +/-    0.85      18.4 +/-    0.85  0.050 / 0.050
G11     69.3           40.1               11.2 +/-    0.72      16.3 +/-    0.72  0.080 / 0.080
G13     296.6          36.0               11.3 +/-    2.44      17.6 +/-    2.44  0.070 / 0.080
G17     211.7          53.1               13.2 +/-    0.69      16.1 +/-    0.69  0.090 / 0.130
G18     63.0           22.8                9.9 +/-    1.04      20.3 +/-    1.04  0.070 / 0.130
G19     213.1          24.8               14.6 +/-    3.05      28.6 +/-    3.05  0.050 / 0.080
G28     336.4          61.6               10.5 +/-    0.68      11.7 +/-    0.68  0.040 / 0.090
G30     97.2           77.2               12.3 +/-    0.79      12.5 +/-    0.79  0.030 / 0.020