PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/05-08:42:50
G01     73.3           33.1                3.2 +/-    0.88       5.3 +/-    0.88  0.030 / 0.050
G07     136.1          31.8                5.8 +/-    0.87       9.7 +/-    0.87  0.040 / 0.050
G11     55.2           31.3                2.3 +/-    0.54       3.9 +/-    0.54  0.030 / 0.040
G13     279.2          37.0                5.6 +/-    0.84       8.5 +/-    0.84  0.030 / 0.040
G15     304.6          15.0                1.4 +/-    1.91       3.4 +/-    1.91  0.110 / 0.390
G17     230.7          69.1                4.0 +/-    1.16       4.3 +/-    1.16  0.100 / 0.380
G19     222.7          41.7                4.9 +/-    1.30       7.0 +/-    1.30  0.040 / 0.110
G28     16.9           59.5                2.6 +/-    0.33       2.9 +/-    0.33  0.060 / 0.110
G30     132.3          63.8                5.0 +/-    0.73       5.6 +/-    0.73  0.050 / 0.090