PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-05:12:50
G01     294.9          40.2                0.5 +/-    5.42       0.7 +/-    5.42  0.060 / 0.080
G03     310.6          14.6                3.2 +/-    2.69       8.2 +/-    2.69  0.090 / 0.070
G10     116.3          30.3                5.1 +/-    1.01       8.9 +/-    1.01  0.060 / 0.080
G11     269.7          26.2                4.1 +/-    1.36       7.8 +/-    1.36  0.080 / 0.100
G14     16.6           61.6                4.1 +/-    0.57       4.6 +/-    0.57  0.190 / 0.250
G18     257.4          49.2                3.9 +/-    1.99       5.0 +/-    1.99  0.130 / 0.250
G22     313.3          34.9                2.2 +/-    1.04       3.5 +/-    1.04  0.050 / 0.040
G25     72.1           18.5                4.2 +/-    1.95       9.5 +/-    1.95  0.050 / 0.040
G31     139.3          76.2                5.4 +/-    0.69       5.6 +/-    0.69  0.030 / 0.050
G32     45.8           46.0                3.6 +/-    0.64       4.7 +/-    0.64  0.030 / 0.040