PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-13:58:00
G01     125.9          11.6                8.7 +/-    4.22      23.5 +/-    4.22  0.080 / 0.090
G07     65.3           67.0                8.2 +/-    0.64       8.8 +/-    0.64  0.090 / 0.070
G08     51.3           40.9                6.7 +/-    0.59       9.6 +/-    0.59  0.060 / 0.090
G09     178.8          37.1                9.0 +/-    0.91      13.7 +/-    0.91  0.050 / 0.090
G11     117.6          36.3                9.2 +/-    1.27      14.2 +/-    1.27  0.030 / 0.040
G13     320.6          12.9                5.3 +/-    2.01      13.7 +/-    2.01  0.030 / 0.040
G17     200.1          13.3                3.8 +/-    7.85       9.8 +/-    7.85  0.100 / 0.390
G18     102.2          16.8                8.3 +/-    2.13      19.8 +/-    2.13  0.250 / 0.430
G28     270.6          48.6                7.4 +/-    2.75       9.5 +/-    2.75  0.080 / 0.380
G30     336.7          62.9                7.4 +/-    0.51       8.2 +/-    0.51  0.100 / 0.380