PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/11-04:27:40
G02     203.4          39.8                5.0 +/-    0.62       7.4 +/-    0.62  0.080 / 0.150
G06     162.0          70.7                5.7 +/-    0.37       6.0 +/-    0.37  0.090 / 0.140
G12     308.9          16.3                2.0 +/-    3.17       4.8 +/-    3.17  0.040 / 0.040
G17     37.8           48.0                2.4 +/-    1.54       3.2 +/-    1.54  0.040 / 0.030
G19     8.7            63.1                2.0 +/-    0.61       2.2 +/-    0.61  0.030 / 0.020
G24     295.4          38.9                1.3 +/-    2.11       2.0 +/-    2.11  0.030 / 0.060
G28     105.8          28.6                6.4 +/-    1.28      11.5 +/-    1.28  0.270 / 0.230