PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-19:42:50
G02     225.3          67.9               13.5 +/-    1.03      14.5 +/-    1.03  0.100 / 0.100
G06     45.0           67.4               11.0 +/-    0.46      11.9 +/-    0.46  0.070 / 0.100
G12     319.8          41.5               11.1 +/-    1.79      15.8 +/-    1.79  0.110 / 0.510
G17     62.8           28.5                9.6 +/-    0.78      17.4 +/-    0.78  0.080 / 0.520
G19     49.0           42.9               11.6 +/-    1.58      16.1 +/-    1.58  0.040 / 0.060
G24     254.7          38.7               13.8 +/-    1.69      20.6 +/-    1.69  0.040 / 0.060
G28     126.4          12.3               16.1 +/-    3.46      42.5 +/-    3.46  0.050 / 0.040