PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-10:28:10
G01     73.2           32.4                6.7 +/-    0.89      11.2 +/-    0.89  0.050 / 0.050
G07     135.0          32.2                8.0 +/-    1.06      13.4 +/-    1.06  0.030 / 0.040
G11     56.5           34.7                6.1 +/-    0.98       9.8 +/-    0.98  0.050 / 0.090
G13     277.5          38.9                6.0 +/-    1.46       8.8 +/-    1.46  0.040 / 0.080
G15     306.1          13.9                2.1 +/-    1.45       5.4 +/-    1.45  0.110 / 0.210
G17     225.8          63.4                7.3 +/-    1.26       8.1 +/-    1.26  0.090 / 0.240
G18     51.0           19.5                5.0 +/-    2.03      11.2 +/-    2.03  0.070 / 0.070
G19     220.7          40.9                6.4 +/-    1.67       9.2 +/-    1.67  0.070 / 0.080
G28     358.6          61.4                6.6 +/-    0.54       7.5 +/-    0.54  0.040 / 0.060
G30     131.8          66.6                8.6 +/-    0.71       9.3 +/-    0.71  0.050 / 0.040