PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/19-23:42:40
G01     66.8           32.4               11.9 +/-    1.72      19.8 +/-    1.72  0.060 / 0.070
G07     139.4          28.2               13.7 +/-    1.52      24.8 +/-    1.52  0.160 / 0.170
G11     52.9           30.4               10.6 +/-    1.18      18.5 +/-    1.18  0.040 / 0.050
G13     270.7          36.8               12.7 +/-    2.41      19.6 +/-    2.41  0.140 / 0.080
G15     298.9          16.2               11.7 +/-    3.11      28.3 +/-    3.11  0.030 / 0.030
G17     238.6          68.8               11.0 +/-    0.52      11.7 +/-    0.52  0.050 / 0.060
G19     227.1          45.1               12.6 +/-    2.07      17.0 +/-    2.07  0.050 / 0.080
G28     26.6           58.2               13.7 +/-    1.18      15.9 +/-    1.18  0.070 / 0.080
G30     138.5          55.2               13.6 +/-    0.76      16.2 +/-    0.76  0.060 / 0.100