PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-13:12:30
G02     16.2           68.6                3.3 +/-    0.49       3.5 +/-    0.49  0.040 / 0.040
G05     159.8          44.8                7.4 +/-    0.59      10.0 +/-    0.59  0.040 / 0.040
G06     44.8           32.8                2.9 +/-    1.00       4.9 +/-    1.00  0.170 / 0.310
G12     270.8          78.8                4.0 +/-    1.82       4.1 +/-    1.82  0.250 / 0.370
G19     86.9           18.7                4.5 +/-    2.24      10.2 +/-    2.24  0.020 / 0.020
G24     220.8          14.7                3.9 +/-    1.72       9.8 +/-    1.72  0.040 / 0.020
G25     312.9          41.1                3.7 +/-    0.95       5.3 +/-    0.95  0.080 / 0.080
G29     297.7          21.1                3.8 +/-    0.90       8.1 +/-    0.90  0.040 / 0.060