PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-07:42:50
G02     27.3           60.9                3.7 +/-    0.39       4.2 +/-    0.39  0.020 / 0.030
G05     149.6          54.4                8.1 +/-    0.56       9.7 +/-    0.56  0.030 / 0.030
G06     48.4           25.5                3.5 +/-    0.95       6.7 +/-    0.95  0.030 / 0.040
G12     227.5          76.9                3.9 +/-    0.56       4.0 +/-    0.56  0.030 / 0.040
G19     93.2           14.8                5.2 +/-    1.16      13.1 +/-    1.16  0.110 / 0.500
G20     199.8          13.6                4.5 +/-    2.46      11.5 +/-    2.46  0.120 / 0.580
G25     308.0          46.3                3.9 +/-    0.95       5.2 +/-    0.95  0.050 / 0.080
G29     301.9          23.2                3.1 +/-    1.06       6.2 +/-    1.06  0.050 / 0.070