PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-01:58:10
G02     14.7           69.3                7.9 +/-    0.50       8.4 +/-    0.50  0.110 / 0.080
G05     156.7          45.5               11.8 +/-    0.99      15.7 +/-    0.99  0.110 / 0.090
G06     45.3           30.3                7.4 +/-    1.61      12.9 +/-    1.61  0.030 / 0.020
G12     273.0          79.3               10.0 +/-    1.65      10.2 +/-    1.65  0.030 / 0.020
G19     84.5           21.5                9.3 +/-    2.34      19.6 +/-    2.34  0.030 / 0.040
G24     220.4          15.1               14.8 +/-    2.66      36.7 +/-    2.66  0.030 / 0.050
G25     314.2          38.0                8.4 +/-    1.26      12.6 +/-    1.26  0.170 / 0.230
G29     294.1          15.1                8.1 +/-    2.13      20.0 +/-    2.13  0.130 / 0.210