PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-05:57:40
G01     305.2          35.5                5.2 +/-    1.74       8.2 +/-    1.74  0.070 / 0.090
G10     107.8          37.3                4.6 +/-    2.12       7.0 +/-    2.12  0.060 / 0.090
G11     279.8          27.5                5.2 +/-    1.88       9.7 +/-    1.88  0.040 / 0.080
G14     359.7          66.5                4.6 +/-    1.73       4.9 +/-    1.73  0.050 / 0.070
G32     35.6           53.0                3.9 +/-    1.51       4.7 +/-    1.51  0.060 / 0.060