PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/24-18:27:50
G01     91.8           31.5               14.1 +/-    0.44      23.9 +/-    0.44  0.110 / 0.290
G07     124.2          47.1               14.8 +/-    1.38      19.4 +/-    1.38  0.180 / 0.400
G08     42.4           10.4               10.0 +/-    2.57      27.7 +/-    2.57  0.040 / 0.070
G11     71.1           40.8               14.1 +/-    0.69      20.3 +/-    0.69  0.040 / 0.050
G13     296.2          35.5               14.8 +/-    0.67      23.2 +/-    0.67  0.040 / 0.040
G17     214.1          49.3               16.4 +/-    1.04      20.8 +/-    1.04  0.030 / 0.040
G18     65.5           24.3               11.8 +/-    0.82      23.4 +/-    0.82  0.050 / 0.090
G19     214.2          24.3               17.5 +/-    1.67      34.8 +/-    1.67  0.040 / 0.090
G28     346.8          61.8               11.9 +/-    0.56      13.3 +/-    0.56  0.070 / 0.210
G30     100.3          76.4               14.7 +/-    0.26      15.1 +/-    0.26  0.060 / 0.250