PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/26-21:12:50
G01     100.6          28.1                9.8 +/-    0.72      17.9 +/-    0.72  0.030 / 0.050
G07     117.1          48.3               10.7 +/-    0.51      13.8 +/-    0.51  0.030 / 0.040
G08     41.5           14.1                6.2 +/-    1.81      15.7 +/-    1.81  0.140 / 0.280
G11     78.8           42.3                9.0 +/-    1.58      12.7 +/-    1.58  0.160 / 0.370
G13     304.2          32.7                9.1 +/-    3.11      15.1 +/-    3.11  0.060 / 0.130
G17     207.4          45.2               13.1 +/-    0.61      17.7 +/-    0.61  0.060 / 0.140
G18     71.1           23.8                8.5 +/-    1.56      17.2 +/-    1.56  0.040 / 0.040
G19     210.3          18.2                0.7 +/-   12.30       1.6 +/-   12.30  0.040 / 0.050
G28     321.3          60.7                9.2 +/-    0.55      10.4 +/-    0.55  0.030 / 0.020
G30     60.0           79.6               11.1 +/-    0.37      11.3 +/-    0.37  0.030 / 0.020