PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-00:58:10
G01     87.4           32.1                6.9 +/-    0.66      11.5 +/-    0.66  0.070 / 0.120
G07     127.8          39.9                7.2 +/-    1.15      10.5 +/-    1.15  0.070 / 0.110
G11     64.3           38.0                5.1 +/-    0.95       7.6 +/-    0.95  0.030 / 0.040
G13     291.6          37.2                6.4 +/-    1.19       9.8 +/-    1.19  0.030 / 0.040
G15     313.9          10.8               -3.2 +/-   19.97      -8.7 +/-   19.97  0.030 / 0.060
G17     215.1          58.3                8.1 +/-    0.80       9.3 +/-    0.80  0.030 / 0.070
G18     57.7           21.2                2.7 +/-    1.28       5.7 +/-    1.28  0.050 / 0.060
G19     215.2          28.1                6.6 +/-    1.11      12.1 +/-    1.11  0.040 / 0.060
G28     346.6          61.7                4.6 +/-    0.86       5.2 +/-    0.86  0.120 / 0.110
G30     110.5          75.1                7.0 +/-    0.85       7.3 +/-    0.85  0.100 / 0.110