PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-19:12:30
G02     5.4            72.1                5.2 +/-    0.66       5.5 +/-    0.66  0.130 / 0.250
G05     159.4          42.9                8.4 +/-    1.28      11.7 +/-    1.28  0.260 / 0.250
G06     44.2           31.5                5.2 +/-    1.88       8.8 +/-    1.88  0.060 / 0.110
G12     287.8          77.7                5.5 +/-    0.86       5.6 +/-    0.86  0.070 / 0.090
G19     83.6           20.2                7.6 +/-    1.94      16.7 +/-    1.94  0.030 / 0.040
G24     221.9          16.2                8.9 +/-    2.69      21.5 +/-    2.69  0.030 / 0.030
G25     314.6          36.5                5.2 +/-    0.85       8.1 +/-    0.85  0.100 / 0.160
G29     292.9          15.1                6.9 +/-    2.13      17.1 +/-    2.13  0.090 / 0.170