PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-14:12:30
G07     13.9           67.0                7.6 +/-    0.67       8.2 +/-    0.67  0.040 / 0.050
G08     74.1           51.6                9.3 +/-    0.50      11.5 +/-    0.50  0.030 / 0.040
G09     182.4          58.2               11.6 +/-    0.64      13.3 +/-    0.64  0.090 / 0.150
G11     134.7          24.1               10.8 +/-    1.10      21.5 +/-    1.10  0.080 / 0.150
G23     158.4          23.9                9.2 +/-    2.05      18.5 +/-    2.05  0.080 / 0.260
G27     44.2           22.9                6.1 +/-    0.80      12.6 +/-    0.80  0.090 / 0.270
G28     248.5          36.1               10.3 +/-    1.27      16.0 +/-    1.27  0.080 / 0.160
G30     317.1          48.7                8.7 +/-    0.99      11.1 +/-    0.99  0.090 / 0.130