PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/13-23:13:10
G01     96.4           30.2               11.7 +/-    1.25      20.4 +/-    1.25  0.040 / 0.050
G07     120.0          50.5               11.2 +/-    1.02      14.0 +/-    1.02  0.040 / 0.040
G08     42.1           15.0                8.5 +/-    1.88      21.2 +/-    1.88  0.060 / 0.110
G11     78.6           43.0               11.4 +/-    1.38      15.9 +/-    1.38  0.080 / 0.100
G13     301.0          33.5                7.1 +/-    2.01      11.7 +/-    2.01  0.090 / 0.250
G17     211.6          45.4               11.9 +/-    1.43      16.0 +/-    1.43  0.070 / 0.390
G19     212.4          22.1               12.0 +/-    1.52      25.0 +/-    1.52  0.050 / 0.060
G28     339.6          61.9                8.8 +/-    0.52       9.9 +/-    0.52  0.040 / 0.050
G30     91.4           76.3               10.1 +/-    0.32      10.4 +/-    0.32  0.080 / 0.120