PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/29-20:27:50
G01     115.3          20.0               14.0 +/-    1.25      30.7 +/-    1.25  0.040 / 0.040
G07     96.2           59.5               15.1 +/-    0.64      17.2 +/-    0.64  0.030 / 0.040
G08     43.2           26.9                8.5 +/-    1.49      15.9 +/-    1.49  0.120 / 0.180
G09     176.9          23.2               14.8 +/-    1.22      30.2 +/-    1.22  0.100 / 0.190
G11     99.6           41.7               13.9 +/-    0.44      19.7 +/-    0.44  0.140 / 0.200
G13     315.4          23.1               10.7 +/-    1.59      21.8 +/-    1.59  0.140 / 0.200
G17     201.7          29.7               14.8 +/-    1.66      26.1 +/-    1.66  0.040 / 0.060
G18     87.3           21.8               12.6 +/-    2.59      26.6 +/-    2.59  0.050 / 0.060
G28     293.3          56.4               12.7 +/-    1.48      14.9 +/-    1.48  0.040 / 0.030
G30     356.5          72.5               14.1 +/-    0.85      14.7 +/-    0.85  0.030 / 0.030