PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/27-05:57:30
G02     200.2          19.4                6.6 +/-    2.14      14.7 +/-    2.14  0.070 / 0.090
G06     173.4          50.9                9.3 +/-    1.49      11.6 +/-    1.49  0.070 / 0.120
G13     227.5          14.0                6.9 +/-    2.04      17.6 +/-    2.04  0.170 / 0.440
G17     24.2           58.6                5.7 +/-    0.59       6.6 +/-    0.59  0.190 / 0.600
G19     312.0          70.8                5.4 +/-    0.80       5.7 +/-    0.80  0.040 / 0.090
G24     308.3          32.3                4.0 +/-    1.02       6.7 +/-    1.02  0.060 / 0.100
G28     84.8           42.3                8.0 +/-    0.52      11.2 +/-    0.52  0.060 / 0.050
G30     157.4          16.8                9.1 +/-    1.21      21.6 +/-    1.21  0.050 / 0.040