PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-05:27:50
G01     83.8           32.8                5.3 +/-    0.38       8.8 +/-    0.38  0.070 / 0.120
G07     130.2          38.7                8.4 +/-    0.51      12.4 +/-    0.51  0.070 / 0.110
G11     61.2           36.2                3.7 +/-    0.48       5.7 +/-    0.48  0.030 / 0.030
G13     287.8          37.7                4.5 +/-    1.33       6.8 +/-    1.33  0.030 / 0.040
G15     312.9          11.0                0.4 +/-   11.33       1.1 +/-   11.33  0.040 / 0.070
G17     218.3          61.8                7.3 +/-    1.22       8.2 +/-    1.22  0.040 / 0.070
G19     217.1          29.7                7.6 +/-    2.32      13.4 +/-    2.32  0.040 / 0.060
G28     355.3          61.5                5.7 +/-    0.95       6.4 +/-    0.95  0.040 / 0.060
G30     117.9          73.5                6.9 +/-    0.61       7.1 +/-    0.61  0.040 / 0.040