PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/02-16:12:50
G01     78.1           33.3               10.5 +/-    0.65      17.1 +/-    0.65  0.040 / 0.060
G07     133.6          36.7               11.9 +/-    1.66      18.4 +/-    1.66  0.040 / 0.060
G11     58.3           34.5                8.9 +/-    0.52      14.3 +/-    0.52  0.030 / 0.030
G13     282.1          37.9               11.4 +/-    0.89      17.2 +/-    0.89  0.030 / 0.040
G15     309.3          12.6                9.7 +/-    1.82      25.5 +/-    1.82  0.080 / 0.110
G17     224.2          62.6               14.0 +/-    1.59      15.6 +/-    1.59  0.070 / 0.100
G18     54.0           20.8                8.7 +/-    1.74      18.7 +/-    1.74  0.050 / 0.070
G19     220.1          33.9               12.8 +/-    1.74      20.7 +/-    1.74  0.050 / 0.100
G28     8.5            60.5               10.2 +/-    0.39      11.5 +/-    0.39  0.050 / 0.130
G30     127.6          68.1               12.2 +/-    0.67      13.0 +/-    0.67  0.050 / 0.110