PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/04-08:13:10
G01     95.5           29.2                3.7 +/-    1.06       6.6 +/-    1.06  0.030 / 0.040
G07     119.2          49.6                5.2 +/-    0.98       6.6 +/-    0.98  0.030 / 0.030
G08     41.8           14.2                0.5 +/-    1.83       1.3 +/-    1.83  0.030 / 0.060
G11     78.0           43.9                5.6 +/-    0.44       7.7 +/-    0.44  0.030 / 0.060
G13     300.5          34.9                4.2 +/-    1.30       6.6 +/-    1.30  0.080 / 0.140
G17     209.5          45.6                6.1 +/-    1.56       8.2 +/-    1.56  0.070 / 0.130
G18     69.6           24.6                4.0 +/-    1.04       7.8 +/-    1.04  0.070 / 0.170
G19     210.8          23.3                4.0 +/-    4.12       8.2 +/-    4.12  0.060 / 0.150
G28     320.5          60.0                4.2 +/-    0.88       4.8 +/-    0.88  0.060 / 0.120
G30     63.2           80.9                4.4 +/-    0.37       4.4 +/-    0.37  0.060 / 0.120