PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/26-23:12:40
G01     123.5          14.6               13.1 +/-    2.03      32.9 +/-    2.03  0.050 / 0.060
G07     65.3           68.8                8.1 +/-    0.64       8.7 +/-    0.64  0.030 / 0.060
G08     48.7           38.4                7.4 +/-    0.72      11.1 +/-    0.72  0.040 / 0.060
G09     178.5          32.4               10.9 +/-    1.41      18.3 +/-    1.41  0.040 / 0.070
G11     117.2          37.2               10.8 +/-    1.34      16.4 +/-    1.34  0.060 / 0.160
G13     320.1          14.6                4.9 +/-    1.35      12.2 +/-    1.35  0.130 / 0.240
G17     201.3          17.6               11.2 +/-    1.12      26.1 +/-    1.12  0.160 / 0.260
G28     284.5          55.5                8.9 +/-    0.76      10.5 +/-    0.76  0.140 / 0.250
G30     346.3          67.1                7.1 +/-    0.50       7.7 +/-    0.50  0.030 / 0.050