PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/01-00:12:30
G02     204.5          40.5               11.6 +/-    2.36      16.8 +/-    2.36  0.060 / 0.090
G06     162.2          71.5               10.7 +/-    0.72      11.2 +/-    0.72  0.070 / 0.060
G12     308.9          16.7                6.1 +/-    3.58      14.6 +/-    3.58  0.090 / 0.120
G17     41.3           44.5                8.0 +/-    1.90      10.8 +/-    1.90  0.090 / 0.140
G19     10.5           62.3                9.3 +/-    0.93      10.3 +/-    0.93  0.040 / 0.040
G24     290.4          41.1                8.0 +/-    8.38      11.4 +/-    8.38  0.060 / 0.030
G28     105.1          31.4                9.8 +/-    2.17      16.7 +/-    2.17  0.140 / 0.220