PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-08:57:40
G01     85.1           31.7                6.0 +/-    0.87      10.2 +/-    0.87  0.040 / 0.030
G07     127.8          41.6                7.0 +/-    0.64       9.9 +/-    0.64  0.030 / 0.030
G11     66.5           40.7                4.4 +/-    0.43       6.3 +/-    0.43  0.030 / 0.070
G13     290.2          38.0                5.0 +/-    1.11       7.5 +/-    1.11  0.030 / 0.060
G15     313.4          11.1                1.9 +/-    8.86       5.3 +/-    8.86  0.080 / 0.120
G17     215.5          54.5                8.3 +/-    0.82      10.0 +/-    0.82  0.050 / 0.110
G18     60.2           23.1                2.6 +/-    0.84       5.3 +/-    0.84  0.100 / 0.110
G19     214.8          31.7                6.3 +/-    1.85      10.7 +/-    1.85  0.080 / 0.130
G28     338.2          61.3                3.7 +/-    0.85       4.1 +/-    0.85  0.070 / 0.200
G30     110.4          76.3                6.9 +/-    0.70       7.1 +/-    0.70  0.070 / 0.190