PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/18-02:27:50
G02     240.4          76.1                4.9 +/-    0.37       5.0 +/-    0.37  0.150 / 0.110
G05     171.5          15.7                6.4 +/-    1.06      15.7 +/-    1.06  0.090 / 0.110
G06     40.0           64.7                3.7 +/-    0.57       4.1 +/-    0.57  0.060 / 0.060
G12     320.7          48.1                4.1 +/-    0.64       5.2 +/-    0.64  0.050 / 0.070
G17     70.6           21.4                3.3 +/-    2.80       7.0 +/-    2.80  0.040 / 0.040
G19     55.5           39.4                3.9 +/-    1.25       5.7 +/-    1.25  0.030 / 0.040
G24     243.9          35.1                7.2 +/-    1.69      11.4 +/-    1.69  0.200 / 0.240
G25     316.2          13.1                2.1 +/-    8.06       5.5 +/-    8.06  0.150 / 0.300