PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-15:28:00
G01     85.4           32.1               10.5 +/-    0.48      17.7 +/-    0.48  0.030 / 0.070
G07     128.7          38.0               11.3 +/-    0.53      16.9 +/-    0.53  0.040 / 0.070
G11     64.2           38.7                7.9 +/-    0.80      11.7 +/-    0.80  0.040 / 0.080
G13     289.8          37.9                9.3 +/-    1.27      14.0 +/-    1.27  0.050 / 0.070
G15     312.6          11.6                7.8 +/-    1.42      20.9 +/-    1.42  0.040 / 0.080
G17     216.2          54.7               12.8 +/-    1.39      15.3 +/-    1.39  0.040 / 0.090
G18     59.3           22.6                8.2 +/-    0.95      16.9 +/-    0.95  0.060 / 0.120
G19     215.3          31.2               12.4 +/-    1.18      21.2 +/-    1.18  0.060 / 0.110
G28     343.1          61.6                9.0 +/-    0.46      10.1 +/-    0.46  0.050 / 0.060
G30     116.8          71.1               10.3 +/-    0.40      10.9 +/-    0.40  0.030 / 0.060