PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-22:27:50
G01     83.5           33.0               10.8 +/-    0.40      17.7 +/-    0.40  0.060 / 0.100
G07     130.3          41.0               12.3 +/-    0.98      17.6 +/-    0.98  0.050 / 0.110
G11     64.6           38.7                8.1 +/-    0.60      12.1 +/-    0.60  0.060 / 0.130
G13     288.4          37.0               10.3 +/-    1.10      15.8 +/-    1.10  0.060 / 0.130
G15     310.9          12.6                8.9 +/-    1.87      23.6 +/-    1.87  0.040 / 0.070
G17     219.8          55.2               11.8 +/-    0.58      14.0 +/-    0.58  0.040 / 0.060
G18     58.8           22.7                9.0 +/-    0.64      18.6 +/-    0.64  0.040 / 0.050
G19     217.5          31.9               14.1 +/-    1.29      23.8 +/-    1.29  0.030 / 0.060
G28     1.2            61.1                9.5 +/-    0.54      10.7 +/-    0.54  0.050 / 0.090
G30     121.0          68.9               12.4 +/-    1.01      13.2 +/-    1.01  0.050 / 0.110