PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-10:27:50
G02     202.6          34.8                6.9 +/-    1.21      11.1 +/-    1.21  0.070 / 0.110
G03     58.8           9.4                 0.1 +/-   16.94       0.3 +/-   16.94  0.080 / 0.110
G06     168.5          65.9                6.2 +/-    0.36       6.7 +/-    0.36  0.070 / 0.070
G12     307.1          13.7                2.0 +/-    3.13       5.0 +/-    3.13  0.080 / 0.080
G17     37.2           48.3                3.5 +/-    1.74       4.5 +/-    1.74  0.040 / 0.040
G19     4.1            64.8                3.2 +/-    0.79       3.5 +/-    0.79  0.030 / 0.060
G24     300.2          36.7                5.0 +/-    1.59       7.7 +/-    1.59  0.110 / 0.210
G28     102.5          31.0                5.0 +/-    1.54       8.6 +/-    1.54  0.160 / 0.240