PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/25-09:12:30
G02     200.0          23.3                5.4 +/-    3.45      10.9 +/-    3.45  0.070 / 0.080
G06     175.3          52.2                6.5 +/-    0.59       8.0 +/-    0.59  0.060 / 0.090
G13     227.4          12.2                4.0 +/-    4.67      10.7 +/-    4.67  0.080 / 0.090
G17     25.6           57.5                5.3 +/-    1.13       6.2 +/-    1.13  0.080 / 0.090
G19     333.3          70.7                3.8 +/-    0.46       4.0 +/-    0.46  0.050 / 0.050
G24     310.0          29.5                3.6 +/-    0.82       6.3 +/-    0.82  0.040 / 0.030
G28     90.4           38.2                5.8 +/-    1.06       8.7 +/-    1.06  0.040 / 0.040
G30     157.0          12.5                4.7 +/-    1.19      12.3 +/-    1.19  0.030 / 0.030