PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-19:43:10
G07     344.7          61.8               13.6 +/-    0.33      15.2 +/-    0.33  0.030 / 0.040
G08     93.0           51.6               15.0 +/-    0.85      18.6 +/-    0.85  0.040 / 0.040
G09     190.4          72.4               15.6 +/-    0.85      16.3 +/-    0.85  0.110 / 0.250
G11     143.1          15.3               16.0 +/-    2.15      39.5 +/-    2.15  0.090 / 0.160
G23     156.6          40.9               15.6 +/-    1.03      22.3 +/-    1.03  0.060 / 0.070
G27     55.1           32.3               11.0 +/-    1.20      18.3 +/-    1.20  0.070 / 0.080
G28     237.5          27.4               14.9 +/-    1.54      27.7 +/-    1.54  0.220 / 0.560
G30     303.7          36.8               13.4 +/-    1.33      20.6 +/-    1.33  0.190 / 0.600