PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/28-06:57:40
G01     83.1           31.8                7.7 +/-    0.62      13.1 +/-    0.62  0.030 / 0.030
G07     128.8          41.3                9.1 +/-    0.80      13.0 +/-    0.80  0.030 / 0.030
G11     65.8           40.7                7.1 +/-    0.65      10.2 +/-    0.65  0.050 / 0.080
G13     288.6          38.4                5.7 +/-    1.23       8.5 +/-    1.23  0.060 / 0.080
G15     311.3          12.5                3.3 +/-    2.16       8.6 +/-    2.16  0.060 / 0.110
G17     216.4          57.1               11.2 +/-    0.76      13.0 +/-    0.76  0.070 / 0.120
G19     215.4          33.1                9.5 +/-    1.28      15.6 +/-    1.28  0.040 / 0.070
G28     339.5          61.3                8.1 +/-    0.80       9.1 +/-    0.80  0.040 / 0.080
G30     113.1          76.3               10.5 +/-    1.15      10.8 +/-    1.15  0.040 / 0.060