PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-14:28:00
G01     125.5          13.0               10.2 +/-    2.15      26.6 +/-    2.15  0.040 / 0.050
G07     58.5           69.3                9.9 +/-    0.49      10.6 +/-    0.49  0.040 / 0.040
G08     49.1           38.1                7.7 +/-    0.34      11.6 +/-    0.34  0.050 / 0.130
G09     177.0          32.8               11.8 +/-    0.75      19.5 +/-    0.75  0.050 / 0.100
G11     115.9          36.4               10.2 +/-    1.11      15.8 +/-    1.11  0.110 / 0.380
G13     320.6          13.4                7.5 +/-    1.52      19.3 +/-    1.52  0.150 / 0.380
G17     200.5          16.2               10.9 +/-    1.90      26.2 +/-    1.90  0.030 / 0.040
G18     101.8          17.6                9.4 +/-    1.54      21.8 +/-    1.54  0.030 / 0.040
G28     279.4          53.9               11.7 +/-    1.06      14.2 +/-    1.06  0.040 / 0.060
G30     334.7          61.9               10.8 +/-    0.43      12.1 +/-    0.43  0.040 / 0.060