PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/06-01:27:50
G01     103.0          27.6                4.9 +/-    1.03       9.0 +/-    1.03  0.030 / 0.050
G07     112.5          55.3                5.1 +/-    0.50       6.1 +/-    0.50  0.050 / 0.040
G08     41.9           18.5                2.4 +/-    1.07       5.6 +/-    1.07  0.060 / 0.100
G09     174.8          11.1                5.6 +/-    2.67      15.3 +/-    2.67  0.060 / 0.130
G11     86.5           43.3                6.2 +/-    1.42       8.6 +/-    1.42  0.100 / 0.050
G13     307.0          30.2                4.6 +/-    1.72       8.0 +/-    1.72  0.050 / 0.060
G17     208.0          40.9                6.3 +/-    0.81       9.0 +/-    0.81  0.130 / 0.200
G19     210.2          17.1                6.4 +/-    2.01      15.1 +/-    2.01  0.100 / 0.140
G28     327.4          61.6                3.1 +/-    0.52       3.5 +/-    0.52  0.030 / 0.040
G30     66.1           77.9                3.6 +/-    1.06       3.6 +/-    1.06  0.030 / 0.040