PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/10-02:28:00
G02     335.8          80.4                6.4 +/-    0.53       6.5 +/-    0.53  0.030 / 0.020
G05     164.5          31.0               11.5 +/-    1.69      19.6 +/-    1.69  0.030 / 0.030
G06     40.7           43.9                6.5 +/-    0.77       8.9 +/-    0.77  0.090 / 0.080
G12     316.0          67.0                8.6 +/-    0.89       9.3 +/-    0.89  0.070 / 0.100
G17     81.6           17.0                7.4 +/-    4.01      17.5 +/-    4.01  0.140 / 0.140
G19     71.5           30.0                8.1 +/-    1.02      14.2 +/-    1.02  0.270 / 0.280
G24     231.5          25.2               10.0 +/-    1.83      19.5 +/-    1.83  0.050 / 0.040
G25     317.7          24.7                7.0 +/-    1.05      13.8 +/-    1.05  0.040 / 0.040