PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-15:27:50
G05     46.4           24.4                7.0 +/-    2.26      13.8 +/-    2.26  0.120 / 0.120
G13     87.8           36.7                8.4 +/-    0.72      12.9 +/-    0.72  0.080 / 0.110
G15     132.9          46.8               11.5 +/-    0.79      15.1 +/-    0.79  0.060 / 0.060
G18     238.9          37.4                9.7 +/-    1.37      14.7 +/-    1.37  0.070 / 0.080
G20     12.7           76.1                7.8 +/-    0.42       8.0 +/-    0.42  0.100 / 0.160
G21     309.0          45.7                7.3 +/-    1.14       9.8 +/-    1.14  0.080 / 0.170
G25     203.1          16.7                8.1 +/-    3.55      19.3 +/-    3.55  0.030 / 0.040
G26     298.6          19.0                5.3 +/-    1.73      11.9 +/-    1.73  0.030 / 0.030
G29     142.9          75.7                9.9 +/-    0.68      10.2 +/-    0.68  0.060 / 0.090