PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/15-11:58:00
G01     243.0          30.7                8.4 +/-    0.94      14.5 +/-    0.94  0.070 / 0.100
G03     313.0          52.9                4.1 +/-    0.56       5.0 +/-    0.56  0.060 / 0.090
G14     64.9           40.1                4.7 +/-    1.16       6.8 +/-    1.16  0.030 / 0.040
G16     157.7          26.6                5.0 +/-    1.16       9.5 +/-    1.16  0.040 / 0.040
G18     216.1          21.7                5.8 +/-    2.82      12.3 +/-    2.82  0.070 / 0.120
G22     278.8          76.2                5.6 +/-    1.10       5.8 +/-    1.10  0.080 / 0.150
G23     294.6          28.0                2.3 +/-    1.80       4.2 +/-    1.80  0.050 / 0.060
G26     125.3          44.7                7.3 +/-    0.68       9.9 +/-    0.68  0.040 / 0.060
G31     41.0           48.2                3.2 +/-    0.67       4.1 +/-    0.67  0.090 / 0.140
G32     84.6           16.6                4.1 +/-    1.69       9.8 +/-    1.69  0.100 / 0.140