PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/22-15:57:50
G01     75.4           32.8                8.8 +/-    0.87      14.6 +/-    0.87  0.040 / 0.100
G07     134.4          30.6                8.8 +/-    0.84      15.2 +/-    0.84  0.050 / 0.130
G11     56.4           33.9                5.6 +/-    0.76       9.0 +/-    0.76  0.040 / 0.060
G13     279.3          38.8                9.5 +/-    0.99      14.1 +/-    0.99  0.040 / 0.050
G15     306.0          14.4                6.0 +/-    2.70      15.1 +/-    2.70  0.060 / 0.110
G17     224.6          63.0               11.7 +/-    0.81      13.0 +/-    0.81  0.060 / 0.130
G18     51.6           19.6                7.4 +/-    1.36      16.5 +/-    1.36  0.060 / 0.110
G19     220.1          38.9               11.6 +/-    1.36      17.2 +/-    1.36  0.230 / 0.290
G28     359.5          61.4                7.5 +/-    0.46       8.5 +/-    0.46  0.030 / 0.040
G30     130.6          63.5                9.0 +/-    0.76       9.9 +/-    0.76  0.040 / 0.040