PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-05:12:50
G01     319.6          17.4                7.1 +/-    3.51      16.5 +/-    3.51  0.040 / 0.050
G08     261.3          14.4                8.7 +/-    1.43      22.0 +/-    1.43  0.050 / 0.040
G10     77.7           52.9                5.5 +/-    0.70       6.7 +/-    0.70  0.200 / 0.260
G11     304.8          22.0                5.5 +/-    1.42      11.5 +/-    1.42  0.230 / 0.120
G14     289.5          70.3                4.9 +/-    0.51       5.2 +/-    0.51  0.050 / 0.050
G18     306.0          40.0                4.3 +/-    2.39       6.2 +/-    2.39  0.040 / 0.050
G20     103.8          30.6                5.2 +/-    0.87       9.1 +/-    0.87  0.080 / 0.100
G31     175.3          40.6                8.0 +/-    1.20      11.5 +/-    1.20  0.070 / 0.080
G32     357.9          70.1                4.8 +/-    0.66       5.1 +/-    0.66  0.030 / 0.020