PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/26-15:43:10
G01     74.0           32.7                8.5 +/-    0.61      14.1 +/-    0.61  0.050 / 0.110
G07     135.0          29.8                9.3 +/-    0.86      16.4 +/-    0.86  0.050 / 0.120
G11     55.6           33.3                6.3 +/-    1.03      10.3 +/-    1.03  0.040 / 0.060
G13     277.8          38.8               10.3 +/-    0.65      15.3 +/-    0.65  0.040 / 0.070
G15     305.1          14.7                6.4 +/-    1.82      16.1 +/-    1.82  0.060 / 0.090
G17     226.0          63.8               10.7 +/-    1.51      11.8 +/-    1.51  0.060 / 0.160
G18     50.7           19.2                7.2 +/-    1.38      16.2 +/-    1.38  0.070 / 0.120
G19     220.8          40.0               12.6 +/-    0.88      18.4 +/-    0.88  0.230 / 0.270
G28     1.5            61.3                8.4 +/-    0.49       9.4 +/-    0.49  0.030 / 0.040
G30     131.9          62.7                9.8 +/-    0.84      10.9 +/-    0.84  0.030 / 0.040