PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-19:42:50
G02     219.7          62.8               12.1 +/-    0.42      13.4 +/-    0.42  0.120 / 0.410
G06     49.5           69.4               11.1 +/-    0.39      11.8 +/-    0.39  0.110 / 0.470
G12     320.4          42.1               10.5 +/-    1.64      14.8 +/-    1.64  0.050 / 0.080
G17     60.1           30.7               10.2 +/-    0.73      17.6 +/-    0.73  0.040 / 0.060
G19     40.9           48.8               11.0 +/-    0.30      14.1 +/-    0.30  0.070 / 0.080
G24     259.1          40.7               13.6 +/-    0.92      19.5 +/-    0.92  0.060 / 0.100
G28     125.1          10.8               12.8 +/-    4.86      34.9 +/-    4.86  0.040 / 0.060