PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/26-23:12:50
G01     67.5           32.5               10.0 +/-    0.76      16.6 +/-    0.76  0.040 / 0.070
G07     139.1          28.8               12.5 +/-    1.44      22.4 +/-    1.44  0.040 / 0.080
G11     53.2           30.7                9.1 +/-    1.55      15.8 +/-    1.55  0.030 / 0.040
G13     271.5          36.9               12.5 +/-    1.04      19.2 +/-    1.04  0.030 / 0.040
G15     299.6          16.1               10.3 +/-    1.63      25.0 +/-    1.63  0.040 / 0.080
G17     237.1          67.8               11.5 +/-    1.06      12.3 +/-    1.06  0.040 / 0.070
G18     47.3           17.1                8.2 +/-    0.70      19.3 +/-    0.70  0.070 / 0.100
G19     226.5          44.3               13.6 +/-    2.18      18.5 +/-    2.18  0.060 / 0.120
G28     25.5           58.4                9.5 +/-    0.51      11.0 +/-    0.51  0.030 / 0.050
G30     138.0          56.1               12.4 +/-    1.57      14.5 +/-    1.57  0.030 / 0.060