PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-01:28:00
G01     99.0           29.2                4.9 +/-    0.59       8.8 +/-    0.59  0.050 / 0.070
G07     117.3          52.3                6.1 +/-    0.35       7.5 +/-    0.35  0.030 / 0.050
G08     41.9           15.4                2.9 +/-    2.04       7.0 +/-    2.04  0.040 / 0.060
G11     81.3           43.0                5.9 +/-    0.32       8.2 +/-    0.32  0.030 / 0.060
G13     303.5          32.2                5.8 +/-    0.80       9.7 +/-    0.80  0.080 / 0.320
G17     210.0          44.7                9.7 +/-    1.46      13.1 +/-    1.46  0.100 / 0.270
G19     211.5          20.5                6.5 +/-    1.07      14.0 +/-    1.07  0.030 / 0.040
G28     335.1          61.8                5.8 +/-    0.55       6.5 +/-    0.55  0.030 / 0.050
G30     84.5           76.6                6.4 +/-    0.67       6.5 +/-    0.67  0.040 / 0.070