PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/09-23:57:50
G01     81.2           33.2                8.2 +/-    1.05      13.5 +/-    1.05  0.040 / 0.040
G07     131.8          39.2               11.5 +/-    0.37      16.9 +/-    0.37  0.050 / 0.040
G11     63.3           38.2                8.1 +/-    0.70      12.1 +/-    0.70  0.050 / 0.080
G13     286.2          37.2                8.1 +/-    0.81      12.3 +/-    0.81  0.060 / 0.080
G15     309.3          13.4                6.9 +/-    4.06      17.9 +/-    4.06  0.090 / 0.050
G17     221.6          58.3               10.5 +/-    1.79      12.1 +/-    1.79  0.090 / 0.060
G19     218.6          34.1               12.0 +/-    1.26      19.3 +/-    1.26  0.050 / 0.080
G28     5.0            60.8                7.6 +/-    0.85       8.5 +/-    0.85  0.070 / 0.090
G30     124.6          66.2                9.6 +/-    0.68      10.4 +/-    0.68  0.050 / 0.060