PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-17:28:00
G01     40.2           14.9                8.0 +/-    2.89      19.9 +/-    2.89  0.030 / 0.030
G06     172.9          42.7               15.7 +/-    0.64      21.8 +/-    0.64  0.030 / 0.030
G13     235.8          20.7               11.2 +/-    4.22      24.3 +/-    4.22  0.080 / 0.120
G15     271.2          11.3                9.7 +/-    2.41      26.3 +/-    2.41  0.090 / 0.100
G17     3.9            69.3               10.5 +/-    0.26      11.1 +/-    0.26  0.050 / 0.070
G19     277.7          67.9               11.5 +/-    0.69      12.3 +/-    0.69  0.070 / 0.080
G24     315.5          21.8                8.2 +/-    3.33      17.2 +/-    3.33  0.260 / 0.580
G28     74.2           45.9               11.0 +/-    0.88      14.7 +/-    0.88  0.130 / 0.390
G30     155.3          26.1               12.3 +/-    1.42      23.5 +/-    1.42  0.150 / 0.180