PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/01-16:43:00
G01     98.0           28.9                9.1 +/-    0.70      16.4 +/-    0.70  0.060 / 0.060
G07     119.2          46.4               10.8 +/-    0.54      14.3 +/-    0.54  0.060 / 0.060
G08     41.7           14.4                5.8 +/-    1.43      14.8 +/-    1.43  0.040 / 0.070
G11     76.9           42.4                9.1 +/-    0.74      12.8 +/-    0.74  0.040 / 0.060
G13     302.1          34.0               12.0 +/-    1.46      19.4 +/-    1.46  0.050 / 0.080
G17     208.9          44.9               12.7 +/-    1.31      17.2 +/-    1.31  0.040 / 0.060
G18     70.2           24.2                9.0 +/-    0.70      17.9 +/-    0.70  0.070 / 0.110
G19     210.7          20.9                7.4 +/-   13.54      16.0 +/-   13.54  0.070 / 0.120
G28     322.7          60.6                9.5 +/-    0.70      10.8 +/-    0.70  0.060 / 0.150
G30     82.9           77.6               10.9 +/-    0.67      11.1 +/-    0.67  0.060 / 0.130