PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-03:43:10
G02     8.9            72.6                3.5 +/-    0.65       3.6 +/-    0.65  0.030 / 0.030
G05     159.4          41.2                7.1 +/-    0.55      10.2 +/-    0.55  0.020 / 0.030
G06     43.4           34.9                3.4 +/-    1.61       5.4 +/-    1.61  0.080 / 0.100
G12     295.9          76.2                3.9 +/-    0.72       4.0 +/-    0.72  0.060 / 0.110
G17     90.3           10.4                4.1 +/-    2.04      11.4 +/-    2.04  0.040 / 0.050
G19     81.0           23.6                4.4 +/-    1.81       8.8 +/-    1.81  0.040 / 0.040
G25     315.9          34.1                2.5 +/-    1.22       4.0 +/-    1.22  0.080 / 0.110
G29     291.2          12.9                6.2 +/-    2.42      16.2 +/-    2.42  0.080 / 0.080