PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-07:12:50
G01     103.3          26.0                3.7 +/-    1.07       7.0 +/-    1.07  0.030 / 0.030
G07     109.9          55.9                5.5 +/-    0.91       6.5 +/-    0.91  0.030 / 0.020
G08     41.8           19.9                1.7 +/-    2.04       3.8 +/-    2.04  0.140 / 0.210
G09     173.2          10.9                5.0 +/-    5.41      13.5 +/-    5.41  0.110 / 0.250
G11     88.8           44.8                5.6 +/-    0.92       7.5 +/-    0.92  0.250 / 0.720
G13     307.5          31.1                4.2 +/-    1.01       7.1 +/-    1.01  0.170 / 0.640
G17     205.8          38.5                6.0 +/-    0.77       9.0 +/-    0.77  0.050 / 0.060
G19     208.3          16.6                3.2 +/-    1.26       7.7 +/-    1.26  0.040 / 0.060
G28     306.4          58.0                3.3 +/-    1.31       3.8 +/-    1.31  0.030 / 0.050
G30     17.0           78.6                4.0 +/-    0.89       4.1 +/-    0.89  0.030 / 0.040