PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/09-10:13:10
G01     86.3           31.6                4.7 +/-    0.64       7.9 +/-    0.64  0.040 / 0.070
G07     127.2          41.8                5.4 +/-    1.17       7.7 +/-    1.17  0.040 / 0.060
G11     67.0           40.6                3.5 +/-    0.80       5.0 +/-    0.80  0.060 / 0.060
G13     291.3          37.8                4.4 +/-    1.26       6.7 +/-    1.26  0.060 / 0.060
G17     215.1          52.7                6.4 +/-    0.97       7.8 +/-    0.97  0.040 / 0.060
G18     61.0           23.3                2.7 +/-    0.69       5.4 +/-    0.69  0.040 / 0.060
G19     214.4          30.7                4.7 +/-    1.39       8.0 +/-    1.39  0.050 / 0.120
G28     337.4          61.3                3.0 +/-    0.99       3.4 +/-    0.99  0.050 / 0.110
G30     108.8          76.1                4.9 +/-    0.65       5.0 +/-    0.65  0.100 / 0.120