PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-07:58:10
G01     72.7           33.0                5.6 +/-    0.84       9.2 +/-    0.84  0.030 / 0.070
G07     136.4          31.6                8.3 +/-    0.78      14.1 +/-    0.78  0.040 / 0.060
G11     55.0           31.2                4.1 +/-    0.81       7.0 +/-    0.81  0.120 / 0.390
G13     278.5          37.1                7.2 +/-    0.85      11.1 +/-    0.85  0.090 / 0.280
G15     304.0          15.2                2.8 +/-    2.01       6.9 +/-    2.01  0.030 / 0.050
G17     231.4          69.3                7.3 +/-    1.31       7.8 +/-    1.31  0.040 / 0.050
G19     223.1          42.0                7.1 +/-    1.01      10.0 +/-    1.01  0.050 / 0.080
G28     17.8           59.4                4.9 +/-    0.37       5.6 +/-    0.37  0.070 / 0.090
G30     132.9          62.9                6.9 +/-    0.68       7.7 +/-    0.68  0.050 / 0.080