PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/14-23:42:50
G01     78.1           33.3               14.4 +/-    1.46      23.5 +/-    1.46  0.070 / 0.100
G07     133.6          36.9               17.3 +/-    1.13      26.5 +/-    1.13  0.060 / 0.080
G11     60.6           36.7               12.7 +/-    0.84      19.6 +/-    0.84  0.050 / 0.040
G13     283.0          37.5               12.3 +/-    1.02      18.6 +/-    1.02  0.050 / 0.040
G15     307.2          14.2               10.5 +/-    2.25      26.8 +/-    2.25  0.040 / 0.050
G17     224.3          60.5               15.7 +/-    1.74      17.7 +/-    1.74  0.050 / 0.060
G19     220.1          36.3               17.2 +/-    2.40      26.7 +/-    2.40  0.040 / 0.070
G28     9.7            60.4               12.8 +/-    1.50      14.5 +/-    1.50  0.050 / 0.060
G30     128.3          64.1               16.2 +/-    0.56      17.8 +/-    0.56  0.060 / 0.100