PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/23-08:43:00
G02     202.7          30.1                7.4 +/-    2.22      12.9 +/-    2.22  0.130 / 0.230
G06     164.9          65.0                7.9 +/-    1.06       8.7 +/-    1.06  0.120 / 0.200
G12     305.5          13.0                3.0 +/-    2.19       7.8 +/-    2.19  0.040 / 0.050
G17     35.3           49.5                4.2 +/-    0.40       5.3 +/-    0.40  0.030 / 0.050
G19     345.4          67.9                4.5 +/-    0.90       4.9 +/-    0.90  0.050 / 0.120
G24     297.7          39.6                5.9 +/-    0.78       8.6 +/-    0.78  0.050 / 0.130
G28     98.1           34.9                6.5 +/-    0.68      10.3 +/-    0.68  0.090 / 0.100