PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-12:58:00
G02     229.7          68.4                5.3 +/-    0.83       5.6 +/-    0.83  0.180 / 0.330
G06     42.6           63.0                4.0 +/-    0.57       4.4 +/-    0.57  0.190 / 0.410
G12     321.7          48.8                4.0 +/-    1.21       5.1 +/-    1.21  0.080 / 0.090
G17     67.8           23.5                3.5 +/-    0.82       7.1 +/-    0.82  0.080 / 0.100
G19     48.2           45.0                3.1 +/-    0.42       4.2 +/-    0.42  0.040 / 0.060
G24     246.8          37.3                8.1 +/-    1.80      12.3 +/-    1.80  0.040 / 0.050
G25     315.6          10.9              -10.1 +/-   30.54     -27.7 +/-   30.54  0.030 / 0.020