PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/14-03:58:10
G01     72.1           33.1                4.8 +/-    0.45       8.0 +/-    0.45  0.040 / 0.050
G07     136.8          31.9                9.1 +/-    0.82      15.3 +/-    0.82  0.030 / 0.050
G11     55.6           32.5                4.3 +/-    0.41       7.2 +/-    0.41  0.030 / 0.040
G13     277.2          37.2                9.2 +/-    1.16      14.0 +/-    1.16  0.040 / 0.040
G15     302.9          15.6                3.0 +/-    2.16       7.5 +/-    2.16  0.050 / 0.080
G17     231.8          68.0                9.3 +/-    0.86      10.0 +/-    0.86  0.050 / 0.100
G19     223.5          41.9               11.4 +/-    0.94      16.1 +/-    0.94  0.110 / 0.330
G28     19.0           59.3                5.5 +/-    0.31       6.3 +/-    0.31  0.080 / 0.260
G30     134.0          59.7                8.9 +/-    0.87      10.1 +/-    0.87  0.040 / 0.070