PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/10-15:13:00
G01     93.3           31.1               11.1 +/-    0.54      19.0 +/-    0.54  0.020 / 0.030
G07     123.0          47.9               10.1 +/-    0.84      13.0 +/-    0.84  0.040 / 0.030
G11     71.4           40.6               10.0 +/-    0.69      14.4 +/-    0.69  0.080 / 0.110
G13     297.4          35.2                9.4 +/-    1.06      14.9 +/-    1.06  0.080 / 0.100
G17     212.7          50.5               12.7 +/-    0.95      16.0 +/-    0.95  0.040 / 0.070
G18     66.3           24.2                9.0 +/-    0.86      17.9 +/-    0.86  0.040 / 0.050
G19     213.7          22.1               11.9 +/-    0.69      24.8 +/-    0.69  0.030 / 0.060
G28     343.6          61.9                9.0 +/-    0.77      10.1 +/-    0.77  0.030 / 0.060
G30     91.5           78.4               10.3 +/-    0.54      10.5 +/-    0.54  0.040 / 0.080