PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/24-16:43:10
G01     49.1           24.7                9.1 +/-    2.10      17.9 +/-    2.10  0.040 / 0.060
G06     177.4          24.7                8.1 +/-    1.48      16.0 +/-    1.48  0.040 / 0.060
G11     44.3           14.9                8.8 +/-    2.66      22.0 +/-    2.66  0.140 / 0.390
G13     249.0          30.9               10.1 +/-    1.56      17.3 +/-    1.56  0.120 / 0.270
G15     282.8          15.7                9.4 +/-    0.93      22.9 +/-    0.93  0.110 / 0.110
G17     305.2          78.5               11.1 +/-    0.56      11.3 +/-    0.56  0.100 / 0.110
G19     246.9          61.3               11.6 +/-    0.33      13.1 +/-    0.33  0.030 / 0.020
G28     44.8           56.2               10.4 +/-    0.82      12.3 +/-    0.82  0.030 / 0.030
G30     149.3          38.7                9.2 +/-    0.46      13.7 +/-    0.46  0.030 / 0.040