PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-22:43:10
G07     343.6          61.5               11.7 +/-    1.29      13.1 +/-    1.29  0.040 / 0.060
G08     90.0           53.6               11.6 +/-    0.86      14.0 +/-    0.86  0.040 / 0.050
G09     186.8          67.0               11.5 +/-    1.61      12.3 +/-    1.61  0.090 / 0.120
G11     143.5          16.7               15.5 +/-    1.06      37.0 +/-    1.06  0.100 / 0.130
G23     157.1          33.0               13.9 +/-    1.79      22.8 +/-    1.79  0.050 / 0.100
G27     48.5           27.0                8.6 +/-    2.16      16.1 +/-    2.16  0.050 / 0.110
G28     243.7          35.6               12.1 +/-    1.54      19.0 +/-    1.54  0.040 / 0.140
G30     310.8          43.6                8.0 +/-    1.61      11.0 +/-    1.61  0.050 / 0.100