PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/13-01:27:40
G01     88.1           32.3                6.0 +/-    0.75      10.1 +/-    0.75  0.040 / 0.050
G07     127.1          44.1                7.2 +/-    0.81       9.9 +/-    0.81  0.050 / 0.060
G11     69.3           40.6                4.9 +/-    0.70       7.0 +/-    0.70  0.030 / 0.050
G13     293.3          36.0                5.2 +/-    0.91       8.1 +/-    0.91  0.030 / 0.050
G15     313.5          11.3                3.1 +/-    4.93       8.4 +/-    4.93  0.080 / 0.100
G17     216.3          54.0                7.9 +/-    0.72       9.5 +/-    0.72  0.060 / 0.110
G19     215.5          29.2                7.3 +/-    2.71      13.1 +/-    2.71  0.060 / 0.080
G28     354.2          61.5                4.0 +/-    1.06       4.5 +/-    1.06  0.040 / 0.100
G30     114.6          70.0                6.1 +/-    0.68       6.4 +/-    0.68  0.050 / 0.110