PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/19-06:42:50
G01     109.4          22.7                5.7 +/-    0.86      11.8 +/-    0.86  0.030 / 0.030
G07     99.9           60.6                5.7 +/-    0.33       6.4 +/-    0.33  0.030 / 0.040
G08     42.6           25.0                3.0 +/-    0.94       5.8 +/-    0.94  0.040 / 0.070
G09     174.2          16.4                5.5 +/-    2.24      13.3 +/-    2.24  0.050 / 0.080
G11     98.0           44.1                6.3 +/-    0.84       8.7 +/-    0.84  0.070 / 0.190
G13     312.2          27.0                4.9 +/-    1.56       9.1 +/-    1.56  0.060 / 0.200
G17     203.4          32.2                5.1 +/-    1.81       8.6 +/-    1.81  0.040 / 0.040
G19     206.8          11.0               -0.1 +/-   13.18      -0.3 +/-   13.18  0.030 / 0.050
G28     295.5          55.8                4.1 +/-    0.98       4.8 +/-    0.98  0.040 / 0.070
G30     356.1          74.0                5.2 +/-    0.51       5.4 +/-    0.51  0.040 / 0.050