PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/26-11:43:00
G01     68.7           32.0                4.1 +/-    1.83       6.9 +/-    1.83  0.090 / 0.100
G07     137.4          28.1                4.7 +/-    1.76       8.5 +/-    1.76  0.060 / 0.120
G11     53.3           31.6                2.7 +/-    1.75       4.5 +/-    1.75  0.040 / 0.040
G13     272.3          38.5                6.1 +/-    1.02       9.1 +/-    1.02  0.040 / 0.040
G15     302.7          14.9                0.3 +/-    1.98       0.7 +/-    1.98  0.150 / 0.080
G17     231.3          66.2                6.4 +/-    0.95       7.0 +/-    0.95  0.090 / 0.110
G18     47.8           17.6                2.0 +/-    1.07       4.7 +/-    1.07  0.060 / 0.250
G19     223.7          44.4                6.1 +/-    1.74       8.3 +/-    1.74  0.070 / 0.200
G28     6.9            61.1                3.8 +/-    0.92       4.3 +/-    0.92  0.110 / 0.230
G30     136.5          62.0                5.8 +/-    0.46       6.4 +/-    0.46  0.160 / 0.230