PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-12:12:40
G01     83.8           32.7                2.3 +/-    0.89       3.9 +/-    0.89  0.050 / 0.080
G07     130.0          38.5                3.1 +/-    0.60       4.6 +/-    0.60  0.050 / 0.080
G11     62.0           35.3                1.6 +/-    0.63       2.6 +/-    0.63  0.030 / 0.040
G13     290.9          36.0                3.6 +/-    1.01       5.6 +/-    1.01  0.030 / 0.040
G15     313.0          11.3                0.6 +/-    0.92       1.5 +/-    0.92  0.120 / 0.270
G17     218.8          61.4                4.8 +/-    1.06       5.3 +/-    1.06  0.120 / 0.410
G19     217.1          33.7                4.0 +/-    1.22       6.5 +/-    1.22  0.050 / 0.050
G28     360.0          61.1                2.5 +/-    0.39       2.9 +/-    0.39  0.040 / 0.050
G30     115.5          73.5                4.4 +/-    1.43       4.5 +/-    1.43  0.080 / 0.090