PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-19:27:50
G01     90.4           31.8               13.5 +/-    0.90      22.8 +/-    0.90  0.130 / 0.300
G07     125.4          46.1               14.3 +/-    0.50      19.0 +/-    0.50  0.120 / 0.380
G08     42.6           10.1                9.0 +/-    2.82      25.2 +/-    2.82  0.030 / 0.030
G11     69.9           40.5               12.7 +/-    1.57      18.4 +/-    1.57  0.030 / 0.040
G13     294.9          35.8               14.7 +/-    2.82      23.0 +/-    2.82  0.040 / 0.060
G17     215.1          49.8               15.6 +/-    0.74      19.7 +/-    0.74  0.040 / 0.060
G18     64.3           24.1               11.4 +/-    1.68      22.8 +/-    1.68  0.080 / 0.110
G19     214.7          25.7               17.0 +/-    2.21      32.6 +/-    2.21  0.090 / 0.110
G28     349.5          61.7               11.8 +/-    0.35      13.2 +/-    0.35  0.070 / 0.140
G30     105.6          75.1               13.9 +/-    0.80      14.3 +/-    0.80  0.060 / 0.150