PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/15-09:12:50
G01     72.4           33.1                5.7 +/-    0.93       9.4 +/-    0.93  0.040 / 0.040
G07     136.6          31.1                7.5 +/-    0.82      12.9 +/-    0.82  0.030 / 0.030
G11     53.6           30.5                5.1 +/-    0.62       8.8 +/-    0.62  0.070 / 0.090
G13     275.7          38.0                7.3 +/-    1.14      10.9 +/-    1.14  0.050 / 0.130
G15     307.1          12.9                2.7 +/-    2.13       7.1 +/-    2.13  0.090 / 0.080
G17     231.6          70.2                7.8 +/-    0.53       8.3 +/-    0.53  0.100 / 0.090
G18     48.6           17.6                2.4 +/-    0.61       5.6 +/-    0.61  0.110 / 0.110
G19     222.9          36.9                7.5 +/-    2.10      11.5 +/-    2.10  0.110 / 0.110
G28     14.7           60.0                5.5 +/-    0.57       6.2 +/-    0.57  0.080 / 0.150
G30     134.1          65.0                6.6 +/-    0.63       7.2 +/-    0.63  0.110 / 0.190