PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/30-04:58:00
G08     264.2          15.8                9.0 +/-    2.50      22.0 +/-    2.50  0.130 / 0.200
G10     72.8           54.4                4.5 +/-    1.13       5.4 +/-    1.13  0.180 / 0.320
G11     307.4          20.4                4.5 +/-    1.69       9.9 +/-    1.69  0.030 / 0.030
G14     280.4          69.2                6.9 +/-    0.63       7.3 +/-    0.63  0.030 / 0.040
G18     308.5          37.6                4.3 +/-    1.43       6.6 +/-    1.43  0.330 / 0.690
G20     101.0          32.8                4.2 +/-    1.54       6.9 +/-    1.54  0.170 / 0.610
G21     155.9          10.3                4.1 +/-    2.65      11.5 +/-    2.65  0.060 / 0.060
G27     228.2          12.5                6.1 +/-    2.40      16.1 +/-    2.40  0.060 / 0.040
G31     176.0          37.3                6.2 +/-    1.34       9.5 +/-    1.34  0.050 / 0.080
G32     350.0          71.9                5.6 +/-    0.87       5.9 +/-    0.87  0.050 / 0.090