PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-08:58:00
G07     338.1          60.1                4.4 +/-    0.76       5.0 +/-    0.76  0.050 / 0.090
G08     105.8          52.5                6.1 +/-    0.50       7.5 +/-    0.50  0.050 / 0.080
G09     190.4          73.6                3.5 +/-    0.98       3.7 +/-    0.98  0.040 / 0.070
G11     146.1          14.1                3.0 +/-    3.59       7.8 +/-    3.59  0.050 / 0.070
G23     154.6          38.6                5.6 +/-    0.43       8.3 +/-    0.43  0.030 / 0.040
G27     55.4           31.8                3.0 +/-    0.57       5.0 +/-    0.57  0.030 / 0.050
G28     235.6          23.5                6.9 +/-    1.93      14.0 +/-    1.93  0.040 / 0.060
G30     302.0          35.2                3.7 +/-    1.08       5.8 +/-    1.08  0.030 / 0.050