PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/15-00:42:30
G02     200.1          22.3                9.8 +/-    2.28      20.5 +/-    2.28  0.100 / 0.090
G06     175.6          50.7               11.1 +/-    0.81      13.9 +/-    0.81  0.080 / 0.100
G13     225.8          12.7                8.1 +/-   16.94      21.3 +/-   16.94  0.050 / 0.080
G17     25.2           57.7                9.7 +/-    1.02      11.2 +/-    1.02  0.080 / 0.060
G19     324.1          71.0                8.5 +/-    0.99       9.0 +/-    0.99  0.040 / 0.030
G24     308.1          31.9                8.6 +/-    1.82      14.5 +/-    1.82  0.030 / 0.030
G28     86.2           42.2                9.5 +/-    0.69      13.3 +/-    0.69  0.070 / 0.060
G30     157.1          13.4               10.9 +/-    1.25      28.1 +/-    1.25  0.060 / 0.040