PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-23:58:10
G05     47.6           19.2                7.7 +/-    1.16      17.2 +/-    1.16  0.200 / 0.270
G10     233.8          11.1              -10.7 +/-   36.53     -29.2 +/-   36.53  0.230 / 0.380
G13     79.3           35.5               12.4 +/-    0.65      19.5 +/-    0.65  0.310 / 0.320
G15     128.1          50.2               13.1 +/-    0.72      16.5 +/-    0.72  0.070 / 0.070
G20     245.2          34.1               12.2 +/-    0.92      19.6 +/-    0.92  0.070 / 0.080
G21     310.1          44.3               12.1 +/-    1.04      16.4 +/-    1.04  0.060 / 0.100
G25     201.6          14.4               13.3 +/-    3.16      33.5 +/-    3.16  0.070 / 0.130
G26     292.0          20.0                9.1 +/-    2.34      20.1 +/-    2.34  0.030 / 0.050
G29     147.8          75.0               12.2 +/-    0.47      12.5 +/-    0.47  0.030 / 0.050