PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/07-16:12:40
G01     315.1          25.0                6.7 +/-    2.11      13.2 +/-    2.11  0.040 / 0.050
G10     92.4           48.3                7.2 +/-    0.72       9.2 +/-    0.72  0.040 / 0.060
G11     296.7          25.1                7.5 +/-    1.50      14.7 +/-    1.50  0.090 / 0.170
G14     322.1          70.5                6.7 +/-    0.83       7.1 +/-    0.83  0.080 / 0.120
G22     305.2          18.0                5.8 +/-    2.17      13.4 +/-    2.17  0.040 / 0.050
G25     93.8           12.5                8.8 +/-    1.82      23.1 +/-    1.82  0.040 / 0.040
G31     173.1          52.5               10.9 +/-    1.30      13.3 +/-    1.30  0.080 / 0.170
G32     23.1           60.4                6.9 +/-    0.49       7.8 +/-    0.49  0.100 / 0.180