PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/08-06:28:00
G02     311.7          82.2                4.4 +/-    0.67       4.4 +/-    0.67  0.100 / 0.230
G05     166.9          26.5                5.5 +/-    1.15      10.5 +/-    1.15  0.100 / 0.270
G06     39.4           50.7                3.5 +/-    0.55       4.4 +/-    0.55  0.070 / 0.120
G12     319.0          61.4                3.9 +/-    0.80       4.4 +/-    0.80  0.040 / 0.120
G17     79.5           16.9                4.2 +/-    1.48      10.0 +/-    1.48  0.030 / 0.040
G19     68.1           31.7                4.5 +/-    0.61       7.5 +/-    0.61  0.030 / 0.040
G24     235.8          28.4                4.7 +/-    1.43       8.4 +/-    1.43  0.090 / 0.120
G25     317.9          21.1                3.6 +/-    2.31       7.7 +/-    2.31  0.080 / 0.140