PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/07-20:27:20
G02     27.3           59.5                9.0 +/-    0.78      10.3 +/-    0.78  0.100 / 0.060
G05     145.5          58.2               11.5 +/-    0.38      13.2 +/-    0.38  0.080 / 0.100
G06     50.9           19.2                8.1 +/-    2.10      18.2 +/-    2.10  0.040 / 0.040
G12     211.9          74.0                9.8 +/-    0.78      10.2 +/-    0.78  0.050 / 0.040
G19     96.4           11.1               10.0 +/-    2.47      27.1 +/-    2.47  0.030 / 0.040
G25     303.5          49.6                9.4 +/-    4.28      11.9 +/-    4.28  0.030 / 0.030
G29     304.3          25.5                9.1 +/-    1.43      17.5 +/-    1.43  0.100 / 0.250