PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/12-03:12:30
G02     286.0          81.6                2.7 +/-    0.69       2.8 +/-    0.69  0.080 / 0.130
G05     168.0          23.9                3.7 +/-    1.73       7.5 +/-    1.73  0.090 / 0.150
G06     38.2           55.6                2.7 +/-    0.75       3.2 +/-    0.75  0.330 / 0.260
G12     319.9          57.6                3.5 +/-    1.02       4.0 +/-    1.02  0.220 / 0.200
G17     78.1           15.9                3.5 +/-    1.42       8.5 +/-    1.42  0.080 / 0.080
G19     64.6           33.8                3.5 +/-    1.07       5.7 +/-    1.07  0.080 / 0.080
G24     234.8          29.3                8.1 +/-    1.44      14.4 +/-    1.44  0.040 / 0.040
G25     317.4          21.4                2.2 +/-    2.30       4.7 +/-    2.30  0.040 / 0.030