PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-22:42:40
G01     121.0          16.6               13.6 +/-    2.46      32.7 +/-    2.46  0.070 / 0.060
G07     73.9           67.8               10.9 +/-    0.38      11.7 +/-    0.38  0.080 / 0.060
G08     47.1           36.3                9.9 +/-    1.11      15.3 +/-    1.11  0.150 / 0.270
G09     178.1          29.2               13.7 +/-    1.64      24.5 +/-    1.64  0.180 / 0.230
G11     113.5          38.8               12.7 +/-    0.76      18.8 +/-    0.76  0.170 / 0.320
G13     319.0          17.1               11.1 +/-    2.67      26.1 +/-    2.67  0.140 / 0.210
G17     202.0          20.2               13.5 +/-    1.81      29.6 +/-    1.81  0.080 / 0.080
G28     289.8          56.8               10.8 +/-    1.54      12.7 +/-    1.54  0.040 / 0.070
G30     351.0          69.2                9.7 +/-    0.47      10.3 +/-    0.47  0.030 / 0.030