PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/15-07:42:30
G01     87.8           31.1                4.2 +/-    2.13       7.2 +/-    2.13  0.030 / 0.030
G07     125.6          44.3                6.2 +/-    0.52       8.4 +/-    0.52  0.030 / 0.030
G11     69.9           42.1                3.7 +/-    0.94       5.2 +/-    0.94  0.130 / 0.180
G13     293.3          37.4                5.7 +/-    3.86       8.6 +/-    3.86  0.100 / 0.150
G15     314.6          10.5              -10.1 +/-    4.82     -27.8 +/-    4.82  0.170 / 0.220
G17     213.4          52.7                7.1 +/-    0.90       8.7 +/-    0.90  0.040 / 0.050
G19     213.5          29.4                6.8 +/-    1.54      12.1 +/-    1.54  0.040 / 0.050
G28     332.6          61.0                2.2 +/-    0.57       2.5 +/-    0.57  0.050 / 0.060
G30     99.5           78.7                4.5 +/-    0.33       4.6 +/-    0.33  0.040 / 0.060