PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/28-22:58:10
G01     70.7           33.0                8.2 +/-    0.91      13.5 +/-    0.91  0.040 / 0.100
G07     137.5          31.3               11.2 +/-    1.47      19.2 +/-    1.47  0.050 / 0.070
G11     55.1           32.5                6.2 +/-    1.04      10.3 +/-    1.04  0.030 / 0.050
G13     274.9          37.3               10.4 +/-    1.32      15.9 +/-    1.32  0.040 / 0.060
G15     302.0          15.6                6.1 +/-    2.05      15.0 +/-    2.05  0.030 / 0.040
G17     232.4          65.4               10.8 +/-    0.93      11.7 +/-    0.93  0.030 / 0.040
G18     49.4           18.5                7.0 +/-    1.45      15.9 +/-    1.45  0.070 / 0.120
G19     224.4          41.8               11.9 +/-    1.10      16.8 +/-    1.10  0.060 / 0.130
G28     20.8           59.1                8.4 +/-    0.47       9.6 +/-    0.47  0.060 / 0.080
G30     135.5          58.9               10.4 +/-    1.01      11.9 +/-    1.01  0.060 / 0.080