PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/12-15:57:40
G01     97.9           28.9               11.0 +/-    1.19      19.8 +/-    1.19  0.040 / 0.070
G07     119.1          46.8               12.0 +/-    0.44      15.7 +/-    0.44  0.050 / 0.070
G08     41.7           14.8                8.2 +/-    0.83      20.4 +/-    0.83  0.060 / 0.060
G11     77.0           42.5               10.7 +/-    0.59      15.0 +/-    0.59  0.060 / 0.060
G13     302.0          34.0               12.3 +/-    1.90      19.9 +/-    1.90  0.040 / 0.090
G17     209.0          44.4               14.8 +/-    1.28      20.1 +/-    1.28  0.040 / 0.080
G18     70.3           24.3               10.2 +/-    0.70      20.3 +/-    0.70  0.090 / 0.140
G19     210.7          21.1                7.6 +/-   15.38      16.3 +/-   15.38  0.080 / 0.120
G28     322.3          60.5               10.8 +/-    0.70      12.2 +/-    0.70  0.070 / 0.070
G30     82.5           77.7               11.7 +/-    0.66      12.0 +/-    0.66  0.040 / 0.070