PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/07-17:58:00
G07     336.9          59.7               10.9 +/-    0.72      12.4 +/-    0.72  0.040 / 0.050
G08     103.2          50.4               12.9 +/-    0.64      16.2 +/-    0.64  0.040 / 0.050
G09     203.1          78.1               11.1 +/-    0.39      11.3 +/-    0.39  0.060 / 0.070
G11     146.8          11.9               14.4 +/-    2.20      38.6 +/-    2.20  0.070 / 0.070
G16     45.3           13.5                7.1 +/-    1.68      18.4 +/-    1.68  0.150 / 0.170
G23     154.4          46.0               13.5 +/-    1.66      18.0 +/-    1.66  0.140 / 0.280
G27     60.5           34.6               11.3 +/-    1.11      18.1 +/-    1.11  0.030 / 0.030
G28     233.4          22.7               11.5 +/-    1.68      23.8 +/-    1.68  0.030 / 0.030
G30     299.7          33.8                8.8 +/-    1.59      14.3 +/-    1.59  0.090 / 0.120