PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/24-14:58:00
G01     100.3          28.4               11.1 +/-    0.64      20.2 +/-    0.64  0.060 / 0.120
G07     116.5          49.7               10.0 +/-    1.00      12.6 +/-    1.00  0.060 / 0.130
G08     41.6           13.4                5.6 +/-    2.72      14.4 +/-    2.72  0.050 / 0.030
G11     77.8           39.9                9.8 +/-    0.92      14.3 +/-    0.92  0.040 / 0.040
G13     305.9          30.7                9.2 +/-    2.11      15.9 +/-    2.11  0.060 / 0.120
G17     208.1          46.7               11.9 +/-    1.60      15.6 +/-    1.60  0.060 / 0.120
G19     210.7          20.3               10.9 +/-    1.40      23.7 +/-    1.40  0.030 / 0.050
G28     330.4          61.5                7.9 +/-    0.44       8.9 +/-    0.44  0.030 / 0.050
G30     41.5           79.9                8.8 +/-    0.45       8.9 +/-    0.45  0.080 / 0.170