PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/11-00:57:50
G01     76.4           33.1                5.3 +/-    1.06       8.7 +/-    1.06  0.050 / 0.040
G07     134.3          31.7                7.4 +/-    1.12      12.5 +/-    1.12  0.040 / 0.050
G11     55.9           32.8                3.5 +/-    1.22       5.9 +/-    1.22  0.130 / 0.220
G13     280.1          38.4                7.5 +/-    1.95      11.1 +/-    1.95  0.130 / 0.210
G15     306.7          14.1                3.5 +/-    2.85       8.9 +/-    2.85  0.070 / 0.070
G17     225.2          67.2                6.7 +/-    1.00       7.2 +/-    1.00  0.080 / 0.080
G18     49.8           17.9                3.9 +/-    3.11       9.0 +/-    3.11  0.060 / 0.080
G19     220.3          36.6                6.6 +/-    1.89      10.2 +/-    1.89  0.050 / 0.090
G28     4.2            61.1                4.1 +/-    0.86       4.6 +/-    0.86  0.100 / 0.080
G30     129.6          67.0                6.7 +/-    0.73       7.2 +/-    0.73  0.090 / 0.100