PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-15:58:10
G01     65.8           31.7                6.9 +/-    1.49      11.6 +/-    1.49  0.040 / 0.050
G07     138.8          23.5                9.2 +/-    1.56      18.6 +/-    1.56  0.060 / 0.050
G11     50.9           28.4                6.3 +/-    1.38      11.3 +/-    1.38  0.090 / 0.180
G13     268.8          37.8                8.8 +/-    4.33      13.3 +/-    4.33  0.090 / 0.180
G15     298.9          16.0                6.3 +/-    2.06      15.2 +/-    2.06  0.110 / 0.150
G17     237.6          70.1                9.1 +/-    0.90       9.6 +/-    0.90  0.080 / 0.140
G18     45.3           15.7                7.3 +/-    3.05      18.0 +/-    3.05  0.030 / 0.040
G19     226.2          46.4               10.0 +/-    2.09      13.3 +/-    2.09  0.030 / 0.040
G28     14.8           60.4                8.2 +/-    1.61       9.3 +/-    1.61  0.080 / 0.100
G30     138.9          55.9                8.6 +/-    0.69      10.1 +/-    0.69  0.060 / 0.130