PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/09-22:57:40
G01     81.6           32.8                9.2 +/-    1.04      15.2 +/-    1.04  0.070 / 0.100
G07     131.4          34.7               10.0 +/-    0.72      15.9 +/-    0.72  0.080 / 0.110
G11     59.8           35.7                7.7 +/-    0.51      12.1 +/-    0.51  0.040 / 0.060
G13     285.7          38.2               10.4 +/-    1.13      15.5 +/-    1.13  0.030 / 0.060
G15     309.9          12.9                8.2 +/-    1.25      21.3 +/-    1.25  0.030 / 0.040
G17     219.6          62.4               11.4 +/-    0.56      12.7 +/-    0.56  0.030 / 0.040
G18     54.2           20.2                7.0 +/-    1.27      15.2 +/-    1.27  0.070 / 0.110
G19     217.6          33.0               12.7 +/-    1.38      20.9 +/-    1.38  0.070 / 0.110
G28     354.7          61.5                9.5 +/-    1.11      10.6 +/-    1.11  0.040 / 0.070
G30     122.5          70.3               10.7 +/-    0.44      11.3 +/-    0.44  0.050 / 0.080