PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/25-15:43:00
G01     76.9           32.7                9.0 +/-    1.38      14.9 +/-    1.38  0.040 / 0.050
G07     133.6          31.8               11.7 +/-    1.27      19.7 +/-    1.27  0.040 / 0.050
G11     57.5           34.8                9.2 +/-    0.91      14.6 +/-    0.91  0.050 / 0.120
G13     280.9          38.8               10.5 +/-    1.14      15.7 +/-    1.14  0.080 / 0.100
G15     307.1          14.0                7.5 +/-    2.20      19.1 +/-    2.20  0.050 / 0.100
G17     223.0          61.6               12.7 +/-    1.32      14.2 +/-    1.32  0.040 / 0.080
G18     52.8           20.2                8.7 +/-    3.70      19.0 +/-    3.70  0.030 / 0.050
G19     219.3          37.7               12.7 +/-    2.00      19.2 +/-    2.00  0.040 / 0.060
G28     356.9          61.5               10.2 +/-    0.84      11.4 +/-    0.84  0.060 / 0.100
G30     128.9          64.9               11.4 +/-    0.52      12.4 +/-    0.52  0.060 / 0.120