PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-02:12:40
G01     78.8           33.3                3.3 +/-    0.98       5.4 +/-    0.98  0.040 / 0.040
G07     133.1          37.2                5.3 +/-    0.54       8.0 +/-    0.54  0.040 / 0.050
G11     60.9           36.6                3.0 +/-    0.86       4.7 +/-    0.86  0.050 / 0.080
G13     284.1          37.3                4.2 +/-    1.04       6.5 +/-    1.04  0.060 / 0.080
G15     307.6          14.1                2.8 +/-    1.61       7.2 +/-    1.61  0.030 / 0.030
G17     223.7          61.8                6.2 +/-    1.18       6.9 +/-    1.18  0.040 / 0.040
G19     219.7          36.4                6.3 +/-    1.61       9.7 +/-    1.61  0.040 / 0.050
G28     8.8            60.4                2.2 +/-    1.36       2.5 +/-    1.36  0.050 / 0.050
G30     127.5          63.7                4.9 +/-    0.31       5.4 +/-    0.31  0.050 / 0.070