PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/19-01:13:00
G01     37.7           9.7                 7.3 +/-    5.01      20.4 +/-    5.01  0.080 / 0.580
G02     199.1          17.9               14.2 +/-    4.02      32.8 +/-    4.02  0.090 / 0.260
G06     173.6          48.1               12.3 +/-    0.60      15.8 +/-    0.60  0.040 / 0.040
G13     231.2          16.2               13.2 +/-    3.33      31.8 +/-    3.33  0.050 / 0.040
G17     10.3           65.6               10.2 +/-    0.46      11.1 +/-    0.46  0.040 / 0.060
G19     306.3          71.3                9.9 +/-    0.53      10.4 +/-    0.53  0.040 / 0.070
G24     313.1          25.8               10.9 +/-    1.68      20.9 +/-    1.68  0.040 / 0.030
G28     83.1           41.9               10.9 +/-    1.04      15.4 +/-    1.04  0.040 / 0.030
G30     155.6          16.4               11.5 +/-    2.02      27.6 +/-    2.02  0.260 / 0.360