PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-14:58:00
G01     95.0           29.8                9.6 +/-    1.06      16.8 +/-    1.06  0.040 / 0.050
G07     121.5          45.3               11.1 +/-    0.62      14.9 +/-    0.62  0.040 / 0.050
G08     41.9           13.3                6.3 +/-    1.40      16.3 +/-    1.40  0.040 / 0.060
G11     73.9           42.0                9.8 +/-    0.49      13.8 +/-    0.49  0.050 / 0.060
G13     299.3          35.2               10.2 +/-    1.34      16.1 +/-    1.34  0.050 / 0.070
G17     210.6          46.3               10.8 +/-    1.37      14.3 +/-    1.37  0.050 / 0.080
G18     67.7           24.2                8.5 +/-    1.02      17.0 +/-    1.02  0.080 / 0.100
G19     211.6          23.6                9.8 +/-    1.12      19.8 +/-    1.12  0.060 / 0.110
G28     326.7          60.8                8.6 +/-    0.98       9.7 +/-    0.98  0.040 / 0.080
G30     90.9           77.2               10.0 +/-    0.69      10.3 +/-    0.69  0.040 / 0.070