PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/08-18:42:30
G02     200.0          17.8               14.0 +/-    2.72      32.5 +/-    2.72  0.050 / 0.060
G06     172.2          50.0               14.6 +/-    0.61      18.4 +/-    0.61  0.050 / 0.070
G13     228.1          15.2               14.7 +/-    1.86      36.5 +/-    1.86  0.110 / 0.310
G17     16.9           62.8               10.9 +/-    0.67      12.1 +/-    0.67  0.150 / 0.320
G19     315.9          71.8               10.4 +/-    0.37      10.9 +/-    0.37  0.080 / 0.190
G24     311.4          27.7               12.3 +/-    1.88      22.7 +/-    1.88  0.070 / 0.130
G28     80.6           45.4               11.3 +/-    1.88      15.2 +/-    1.88  0.140 / 0.430
G30     155.6          13.9               11.7 +/-    3.01      29.8 +/-    3.01  0.230 / 0.560