PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/29-15:28:00
G01     76.1           32.7                8.0 +/-    1.25      13.2 +/-    1.25  0.040 / 0.050
G07     134.0          31.4               10.1 +/-    1.12      17.2 +/-    1.12  0.040 / 0.050
G11     57.0           34.5                8.2 +/-    0.92      13.2 +/-    0.92  0.080 / 0.120
G13     280.1          38.8                7.7 +/-    2.00      11.4 +/-    2.00  0.060 / 0.110
G15     306.6          14.2                6.1 +/-    2.96      15.4 +/-    2.96  0.050 / 0.080
G17     223.8          62.0               11.2 +/-    1.42      12.6 +/-    1.42  0.060 / 0.100
G18     52.2           20.0                7.2 +/-    2.93      15.8 +/-    2.93  0.050 / 0.050
G19     219.7          38.4                9.5 +/-    2.11      14.1 +/-    2.11  0.040 / 0.040
G28     358.0          61.4                8.6 +/-    0.82       9.7 +/-    0.82  0.150 / 0.290
G30     129.7          64.5                9.5 +/-    0.52      10.4 +/-    0.52  0.110 / 0.180