PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/09-08:13:00
G01     84.9           31.7                5.9 +/-    0.56      10.0 +/-    0.56  0.030 / 0.040
G07     127.8          41.9                7.7 +/-    0.77      10.8 +/-    0.77  0.030 / 0.040
G11     66.8           40.9                5.2 +/-    0.74       7.4 +/-    0.74  0.030 / 0.050
G13     290.2          38.1                4.9 +/-    1.17       7.3 +/-    1.17  0.030 / 0.040
G15     313.0          11.4                2.3 +/-    2.35       6.3 +/-    2.35  0.030 / 0.040
G17     215.4          55.0                7.5 +/-    0.83       9.0 +/-    0.83  0.030 / 0.060
G19     214.7          31.7                5.8 +/-    1.86       9.8 +/-    1.86  0.080 / 0.100
G28     337.8          61.3                3.6 +/-    0.95       4.0 +/-    0.95  0.050 / 0.090
G30     109.8          76.7                6.8 +/-    0.54       7.0 +/-    0.54  0.060 / 0.050