PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/13-10:28:00
G02     202.6          34.8                8.3 +/-    1.37      13.3 +/-    1.37  0.060 / 0.160
G06     168.5          65.9                7.1 +/-    0.96       7.7 +/-    0.96  0.060 / 0.150
G12     307.1          13.7                2.2 +/-    2.60       5.7 +/-    2.60  0.120 / 0.220
G17     37.2           48.3                3.5 +/-    0.34       4.5 +/-    0.34  0.100 / 0.220
G19     4.1            64.8                4.3 +/-    0.56       4.7 +/-    0.56  0.030 / 0.050
G24     300.2          36.7                4.0 +/-    1.03       6.2 +/-    1.03  0.030 / 0.060
G28     102.5          31.0                6.8 +/-    0.62      11.8 +/-    0.62  0.050 / 0.100