PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/02-02:43:10
G02     283.8          82.0                4.8 +/-    0.78       4.8 +/-    0.78  0.030 / 0.030
G05     167.7          23.9                5.4 +/-    2.19      10.9 +/-    2.19  0.030 / 0.040
G06     39.8           51.5                4.8 +/-    0.89       5.9 +/-    0.89  0.070 / 0.120
G12     320.4          58.9                5.3 +/-    0.66       6.1 +/-    0.66  0.070 / 0.110
G17     75.6           21.1                4.2 +/-    1.14       8.9 +/-    1.14  0.160 / 0.330
G19     64.3           34.4                5.3 +/-    1.42       8.6 +/-    1.42  0.190 / 0.260
G24     238.2          30.3                7.8 +/-    2.76      13.6 +/-    2.76  0.030 / 0.040
G25     317.7          18.0                4.3 +/-    1.56       9.8 +/-    1.56  0.050 / 0.060