PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/04-18:43:10
G01     38.8           12.9                9.9 +/-    1.02      25.8 +/-    1.02  0.090 / 0.190
G02     199.5          11.2                6.1 +/-   22.35      16.6 +/-   22.35  0.090 / 0.170
G06     174.3          42.2               15.9 +/-    0.91      22.3 +/-    0.91  0.090 / 0.140
G13     233.4          19.9               14.7 +/-    1.40      32.5 +/-    1.40  0.080 / 0.190
G15     266.7          10.8               13.6 +/-    2.28      37.2 +/-    2.28  0.040 / 0.060
G17     6.7            68.2               13.0 +/-    0.68      13.9 +/-    0.68  0.040 / 0.080
G19     290.8          71.2               12.8 +/-    0.61      13.5 +/-    0.61  0.310 / 0.370
G24     314.8          22.5               10.7 +/-    1.73      22.3 +/-    1.73  0.240 / 0.490
G28     71.5           48.9               12.5 +/-    0.22      15.9 +/-    0.22  0.070 / 0.060
G30     154.5          20.7               13.9 +/-    0.79      30.0 +/-    0.79  0.080 / 0.070